Top videos
Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/sc....ience/physics/work-a
Work needed to compress a spring is the same thing as the potential energy stored in the compressed spring. Created by Sal Khan.
Watch the next lesson: https://www.khanacademy.org/science/physics/work-and-energy/hookes-law/v/spring-potential-energy-example-mistake-in-math?utm_source=YT&utm_medium=Desc&utm_campaign=physics
Missed the previous lesson? https://www.khanacademy.org/science/physics/work-and-energy/hookes-law/v/intro-to-springs-and-hooke-s-law?utm_source=YT&utm_medium=Desc&utm_campaign=physics
Physics on Khan Academy: Physics is the study of the basic principles that govern the physical world around us. We'll start by looking at motion itself. Then, we'll learn about forces, momentum, energy, and other concepts in lots of different physical situations. To get the most out of physics, you'll need a solid understanding of algebra and a basic understanding of trigonometry.
About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.
For free. For everyone. Forever. #YouCanLearnAnything
Subscribe to Khan Academy’s Physics channel: https://www.youtube.com/channe....l/UC0oGarQW2lE5PxhGo
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us
Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/linear-algebra/vectors_and_spaces/vectors/e/unit-vector?utm_source=YT&utm_medium=Desc&utm_campaign=LinearAlgebra
Watch the next lesson: https://www.khanacademy.org/math/linear-algebra/vectors_and_spaces/vectors/v/linear-algebra-parametric-representations-of-lines?utm_source=YT&utm_medium=Desc&utm_campaign=LinearAlgebra
Missed the previous lesson?
https://www.khanacademy.org/math/linear-algebra/vectors_and_spaces/vectors/v/linear-algebra-vector-examples?utm_source=YT&utm_medium=Desc&utm_campaign=LinearAlgebra
Linear Algebra on Khan Academy: Have you ever wondered what the difference is between speed and velocity? Ever try to visualize in four dimensions or six or seven? Linear algebra describes things in two dimensions, but many of the concepts can be extended into three, four or more. Linear algebra implies two dimensional reasoning, however, the concepts covered in linear algebra provide the basis for multi-dimensional representations of mathematical reasoning. Matrices, vectors, vector spaces, transformations, eigenvectors/values all help us to visualize and understand multi dimensional concepts. This is an advanced course normally taken by science or engineering majors after taking at least two semesters of calculus (although calculus really isn't a prereq) so don't confuse this with regular high school algebra.
About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.
For free. For everyone. Forever. #YouCanLearnAnything
Subscribe to KhanAcademy’s Linear Algebra channel:: https://www.youtube.com/channe....l/UCGYSKl6e3HM0PP7QR
Subscribe to KhanAcademy: https://www.youtube.com/subscr....iption_center?add_us
Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/precalculus/precalc-matrices/matrix_multiplication/e/multiplying_a_matrix_by_a_matrix?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus
Watch the next lesson: https://www.khanacademy.org/math/precalculus/precalc-matrices/matrix_multiplication/v/multiplying-a-matrix-by-a-matrix?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus
Missed the previous lesson?
https://www.khanacademy.org/math/precalculus/precalc-matrices/Basic_matrix_operations/v/transpose-of-a-matrix?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus
Precalculus on Khan Academy: You may think that precalculus is simply the course you take before calculus. You would be right, of course, but that definition doesn't mean anything unless you have some knowledge of what calculus is. Let's keep it simple, shall we? Calculus is a conceptual framework which provides systematic techniques for solving problems. These problems are appropriately applicable to analytic geometry and algebra. Therefore....precalculus gives you the background for the mathematical concepts, problems, issues and techniques that appear in calculus, including trigonometry, functions, complex numbers, vectors, matrices, and others. There you have it ladies and gentlemen....an introduction to precalculus!
About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.
For free. For everyone. Forever. #YouCanLearnAnything
Subscribe to Khan Academy’s Precalculus channel:
https://www.youtube.com/channe....l/UCBeHztHRWuVvnlwm2
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us
Determining the projection of a vector on s line
Watch the next lesson: https://www.khanacademy.org/math/linear-algebra/matrix_transformations/lin_trans_examples/v/expressing-a-projection-on-to-a-line-as-a-matrix-vector-prod?utm_source=YT&utm_medium=Desc&utm_campaign=LinearAlgebra
Missed the previous lesson?
https://www.khanacademy.org/math/linear-algebra/matrix_transformations/lin_trans_examples/v/unit-vectors?utm_source=YT&utm_medium=Desc&utm_campaign=LinearAlgebra
Linear Algebra on Khan Academy: Have you ever wondered what the difference is between speed and velocity? Ever try to visualize in four dimensions or six or seven? Linear algebra describes things in two dimensions, but many of the concepts can be extended into three, four or more. Linear algebra implies two dimensional reasoning, however, the concepts covered in linear algebra provide the basis for multi-dimensional representations of mathematical reasoning. Matrices, vectors, vector spaces, transformations, eigenvectors/values all help us to visualize and understand multi dimensional concepts. This is an advanced course normally taken by science or engineering majors after taking at least two semesters of calculus (although calculus really isn't a prereq) so don't confuse this with regular high school algebra.
About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.
For free. For everyone. Forever. #YouCanLearnAnything
Subscribe to KhanAcademy’s Linear Algebra channel:: https://www.youtube.com/channe....l/UCGYSKl6e3HM0PP7QR
Subscribe to KhanAcademy: https://www.youtube.com/subscr....iption_center?add_us
Today, Caroline and Sophie start Circle Time with a fun "Show & Tell" featuring character art we’ve received from kids. Great work, everyone! Learn how to draw Sandy the Dingo from Khan Academy Kids with Kim Ferrari, our lead animator. An animator is someone who draws, and makes those drawings move. Draw with Kim as she explains Sandy’s structure and illustrates the techniques that create her face. Practice drawing to make your own Sandy.
Are your kids ready to draw Sandy? Submit your drawing here: http://khan.co/KhanKids-SubmitYourArt. For more Show and Tell submission ideas, check out our list here: http://khan.co/KhanKids-ShowAndTell.
Looking for more kid-friendly activities? Don’t miss our Printables page, here:
http://khan.co/KhanKids-Printables.
Learn more about Khan Academy Kids, our free educational app for children ages 2-7, at http://www.khankids.org.
Available on Apple, Google Play, and Amazon app stores:
http://khan.co/KhanKids-YT-Apple
http://khan.co/KhanKids-YT-Google
http://khan.co/KhanKids-YT-Amazon
Subscribe to our channel so you don’t miss a single resource from Khan Academy Kids, and access all of our Circle Time videos on our Circle Time Playlist! http://khan.co/KhanKids-CircleTimePlaylist.
Questions or ideas for Circle Time? Reach our team at khankids@khanacademy.org.
2nd Channel: https://www.youtube.com/@simplehistory2
Become a Simple History member: https://www.youtube.com/simplehistory/join
Support us on Patreon: https://www.patreon.com/simplehistory
Copyright: DO NOT translate and re-upload our content on Youtube or other social media.
SIMPLE HISTORY MERCHANDISE
Get the Simple History books on Amazon:
https://www.amazon.com/Daniel-....Turner-%60/e/B00H5TY
T-Shirts
https://teespring.com/stores/s....imple-history-offici
Simple history gives you the facts, simple!
See the book collection here:
Amazon USA
http://www.amazon.com/Daniel-Turner/e/B00H5TYLAE/
Amazon UK
http://www.amazon.co.uk/Daniel....-Turner/e/B00H5TYLAE
https://www.facebook.com/Simpl....e-History-5494376751
https://twitter.com/SimpleHistoryYT
Credit:
Show Created by Daniel Turner (B.A. (Hons) in History, University College London)
Script:
Narrator:
Chris Kane
https://vocalforge.com/
This geometry and trigonometry video tutorial explains how to calculate the arc length of a circle using a formula given the angle in radians the and the length of the radius. It also explains how to calculate the sector area in terms of pi or in radians. In addition, it also explains how to determine the area of a sector of a circle using an equation where the angle is given in degrees instead of radians. This video contains plenty of examples and practice problems.
Trigonometry - Basic Introduction:
https://www.youtube.com/watch?v=g8VCHoSk5_o
Introduction to Angles:
https://www.youtube.com/watch?v=oxhXz9_uyiM
Radians and Degrees:
https://www.youtube.com/watch?v=JmLN3QxshlE
What Exactly Is a Radian?
https://www.youtube.com/watch?v=CHCWXAkozHM
Coterminal Angles:
https://www.youtube.com/watch?v=RkMhGwp8pv4
_________________________
Decimal Degrees to DMS:
https://www.youtube.com/watch?v=W9kousU6AI0
Arc Length of a Circle and Sector Area:
https://www.youtube.com/watch?v=C9z3FXS7nlo
Linear Speed and Angular Velocity:
https://www.youtube.com/watch?v=FgTvlGm9jgE
Clock to Angle Problems:
https://www.youtube.com/watch?v=LEHYr0XfSyI
The Unit Circle:
https://www.youtube.com/watch?v=57VrEiEPD1I
_______________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/
Full-Length Videos and Worksheets:
https://www.patreon.com/MathSc....ienceTutor/collectio
This math video tutorial provides a basic introduction into basic division. It explains how to identify the quotient, dividend, divisor, and remainder.
Basic Addition: https://www.youtube.com/watch?v=2WxfQIElJuw
Basic Subtraction: https://www.youtube.com/watch?v=3fYgZgbOJmM
Addition and Subtraction - Number Lines: https://www.youtube.com/watch?v=wNhbz1EUPrc
Long Multiplication: https://www.youtube.com/watch?v=GKetIwxaenA
Lattice Multiplication: https://www.youtube.com/watch?v=ZDmNdjiYAIw
Area Model Multiplication: https://www.youtube.com/watch?v=UV0ky5fESI0
Basic Division: https://www.youtube.com/watch?v=yAJxHO7CLh4
Long Division: https://www.youtube.com/watch?v=GiiuZ8sfw00
Short Division: https://www.youtube.com/watch?v=uKsSB8zIR9M
Mental Math Tricks: https://www.youtube.com/watch?v=nTn9gVqRfKY
Exponentiation and Tetration: https://www.youtube.com/watch?v=S3s9cWWnZj0
_______________________________________________________________________________________________
Fractions - Basic Introduction: https://www.youtube.com/watch?v=3TklZi6MeJ4
Simplifying Fractions: https://www.youtube.com/watch?v=PcEwj5_v75g
Adding Fractions - Unlike Denominators: https://www.youtube.com/watch?v=5fbzZEK77DQ
Subtracting Fractions: https://www.youtube.com/watch?v=8ZbIrASBj54
Multiplying Fractions: https://www.youtube.com/watch?v=sR83TDp_g2c
Dividing Fractions: https://www.youtube.com/watch?v=Ht8O3cJ9yJ8
________________________________________________________________________________________________
Mixed Numbers - Basic Intro: https://www.youtube.com/watch?v=PZGx0nSxzjs
Improper Fractions to Mixed Numbers: https://www.youtube.com/watch?v=zvLql0wBM4E
Mixed Numbers to Improper Fractions: https://www.youtube.com/watch?v=r_skHxRWZFw
Adding Mixed Numbers + Whole Numbers: https://www.youtube.com/watch?v=I3sfDiKVw-Y
Adding Mixed Numbers: https://www.youtube.com/watch?v=EvYgX0wz0xY
Subtracting Mixed Numbers and Fractions: https://www.youtube.com/watch?v=jzVz0A9cnNk
Multiplying Mixed Numbers and Fractions: https://www.youtube.com/watch?v=5tv4vRNQqHk
Multiplying Mixed Numbers: https://www.youtube.com/watch?v=idymJjnnXME
Dividing Mixed Numbers By Whole Numbers: https://www.youtube.com/watch?v=Iw2YpA1myfc
Dividing Mixed Numbers: https://www.youtube.com/watch?v=BOvKBaeqhKw
_______________________________________________________________________________________________
Rounding Numbers & Decimals: https://www.youtube.com/watch?v=LGRoPAPMZhA
Adding Decimals: https://www.youtube.com/watch?v=SKRbgU_A1VU
Subtracting Decimals: https://www.youtube.com/watch?v=MdthGCQfC0o
Multiplying Decimals: https://www.youtube.com/watch?v=dSFja7Jsg6c
Dividing Decimals: https://www.youtube.com/watch?v=bHkI3hGQhZI
_______________________________________________________________________________________________
Percentages Made Easy: https://www.youtube.com/watch?v=WYWPuG-8U5Q
Percentage Word Problems: https://www.youtube.com/watch?v=kjpwBu6DmkM
Sales Tax, Discount, & Original Price: https://www.youtube.com/watch?v=TRlC8lqkhT4
Unit Rates, Ratios, & Proportions: https://www.youtube.com/watch?v=s0RBRkehzwo
Ratios and Proportions - Word Problems: https://www.youtube.com/watch?v=JOZSFwuyqok
Acid Mixture Word Problems: https://www.youtube.com/watch?v=e2FAAMlAJ3c
Translating Words to Algebraic Expressions: https://www.youtube.com/watch?v=QEnFIgN8UBw
Words to Equations - More Problems: https://www.youtube.com/watch?v=VjPX-XlN7Ok
Consecutive Integers Word Problems: https://www.youtube.com/watch?v=hPnoxAf60c0
Simple Interest - Word Problems: https://www.youtube.com/watch?v=NCYNXkbTTUo
Future Value of an Annuity Math Problem: https://www.youtube.com/watch?v=bcuXY8WkjF4
This physics video tutorial explains the concept of sound waves and how shows you how to calculate the wavelength, frequency, and velocity of sound waves. It also shows you how to calculate sound intensity, intensity level in dB or decibels, beat frequency, and how to solve problems with open and closed organ pipes / tubes plus the doppler effect. This video contains the formulas and equations that you need for this chapter / topic as well as many examples and practice problems.
My Website: https://www.video-tutor.net
Patreon Donations: https://www.patreon.com/MathScienceTutor
Amazon Store: https://www.amazon.com/shop/th....eorganicchemistrytut
Subscribe:
https://www.youtube.com/channe....l/UCEWpbFLzoYGPfuWUM
Here is a list of topics:
1. Sound Waves - Transverse vs Longitudinal Waves
2. Pressure Waves - Compression vs Expansion / Rarefaction
3. Speed of Sound vs Density, Elastic Modulus, and Temperature Equation / Relationship
4. Speed of Sound Calculations in Helium gas and in Seawater
5. Audible Range Frequency - 20 Hz to 20,000 Hz
6. Subsonic, Supersonic, Infrasonic, and Ultrasonic Vocabulary Terms
7. Pitch vs Loudness - Frequency vs Amplitude
8. Mechanical Waves - Trough, Crest, Period, Frequency - Cycles Per Second
9. Sound Intensity Formula - Power, Surface Area & Inverse Square Law
10. Power, Work, Energy and Time Calculations - Intensity
11. Units of Intensity - Watts per Square Meter
12. Sound Intensity Level Equation - Decibels - dB & Loudness
13. Intensity, Amplitude, Frequency, Speed and Density Formula
14. Threshold of Hearing Reference Intensity Level
15. Vibrating Molecules - Air Displacement vs Pressure
16. Standing Waves on a String Formulas
17. Wave Velocity, Tension Force, Linear Density of String / Wire - Mass Per Unit Length Problems
18. Nodes and Antinodes Physics
19. Fundamental Frequency and Harmonics Explained
20. Harmonic Motion, Overtones, and Octaves of Middle C
21. String Length, Wavelength and Frequency Calculations
22. Vibrating Columns of Air - Flute, Clarinet, and Pipe Organs
23. Pipe Organs - Closed at one end and open at both ends
24. Standing Waves - Open Tubes and Closed Tubes - Air Columns
25. Displacement of Air vs Pressure - Standing Wave, Nodes, & Loops
26. Odd Harmonics For Closed End Tube / Organ Pipe
27. Constructive and Destructive Interference
28. Principle of Superposition - Two Speakers Problem
29. Beat Frequency Physics
30. Doppler Effect - Sound in Motion - Frequency Shift
31. Wave Crest - Compression and Expansion -
32. Frequency of Observer and Source
33. Source Moving Toward and Away From Observer - Increasing vs Decreasing Frequency
34. Doppler Effect Problems - Police Car, Siren of Ambulance Truck, Direction of Moving Object or Observer, Speed of Sound in Seawater, and Reflected Wave Problem
35. Successive Harmonics and Fundamental Frequency
36. Frequency and Temperature Calculations
Disclaimer: Some of the links associated with this video may generate affiliate commissions on my behalf. As an amazon associate, I earn from qualifying purchases that you may make through such affiliate links.
This chemistry video tutorial explains how to use the solubility rules to determine if a compound is soluble or insoluble.
Stoichiometry Practice Test: https://www.youtube.com/watch?v=mP2Yg8alyR0
Solute, Solvent, & Solution:
https://www.youtube.com/watch?v=MDHlaTHbEgM
Strong & Weak Electrolytes:
https://www.youtube.com/watch?v=2U2DBWWo6nc
Molarity Practice Problems:
https://www.youtube.com/watch?v=o_iETsDSvkg
Ion Concentration In Solutions:
https://www.youtube.com/watch?v=H5S4TRAzXhQ
Dilution Problems:
https://www.youtube.com/watch?v=FPidlCmymVg
___________________________________
Types of Chemical Reactions:
https://www.youtube.com/watch?v=iIJD8RNLpS0
Solubility Rules:
https://www.youtube.com/watch?v=LnGIKtx_udE
Predicting The Products of Reactions:
https://www.youtube.com/watch?v=MYmrWHzT1oI
Activity Series of Metals:
https://www.youtube.com/watch?v=VatDpKMJ-BU
Will This Reaction Occur?
https://www.youtube.com/watch?v=ACSKrg2RBmY
Predicting Products of SR Reactions:
https://www.youtube.com/watch?v=s4OFBa7Uans
___________________________________
Double Replacement Reactions:
https://www.youtube.com/watch?v=d8vWIGf2mGE
Net Ionic Equations:
https://www.youtube.com/watch?v=0jhNouV9TNo
Writing Chemical Equations From Words:
https://www.youtube.com/watch?v=npyvZSBqyc0
Solution Stoichiometry:
https://www.youtube.com/watch?v=Ab3wfKjaWWQ
Molarity & Dilution Problems:
https://www.youtube.com/watch?v=-4E6rOkiw2I
Acid Base Neutralization Reactions:
https://www.youtube.com/watch?v=UfTJrAPjeys
____________________________________
Acid Base Titration Problems:
https://www.youtube.com/watch?v=HJvALCcKYAc
Mixture Problems:
https://www.youtube.com/watch?v=e2FAAMlAJ3c
Calculating Oxidation Numbers:
https://www.youtube.com/watch?v=j0hI-a6EWWo
Oxidation and Reduction Reactions:
https://www.youtube.com/watch?v=dF5lB7gRtcA
Balancing Redox Reactions:
https://www.youtube.com/watch?v=fdbrhQAM9Gw
Ideal Gas Law Problems:
https://www.youtube.com/watch?v=iaZ96KaQ44c
___________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/
Full-Length Videos and Worksheets:
https://www.patreon.com/MathSc....ienceTutor/collectio
What is full when it’s used and empty when it’s at rest?
📍📍歡迎收看《English Speaking系列》📍📍
Talking about your neighbourhood
👉https://youtu.be/pVZsqtQ2pMA
Talking about different festivals
👉https://youtu.be/7XWE_QB0qEk
Introduce your school
👉https://www.youtube.com/watch?v=DPfvjdEI7Dw
Back to school
👉https://www.youtube.com/watch?v=NSv5QyPmhpw
Good manners_actions
👉https://youtu.be/_Swu0JtZke0
Good manners
👉https://www.youtube.com/watch?v=HGME2UCt6-M&t=29s
Talking about daily routines
👉https://youtu.be/Np8mJ1uw8c8
📍📍歡迎收看《Grammar系列》📍📍
Lesson4_common mistakes
👉https://youtu.be/A7Yz6eEcYPs
Lesson3_irregular verbs_part2
👉https://youtu.be/vE6AnyrYDZQ
Lesson2_irregular verbs_part 1
👉https://youtu.be/C_p_r053MeQ
Lesson1_Opposite words
👉https://youtu.be/ftz3u46E0Zo
📍📍歡迎收看《Cooking系列》📍📍
Make fresh juice
👉https://www.youtube.com/watch?v=VFOo2RW_qoI
📍📍歡迎收看《Shorts系列》📍📍
Funny jokes 5
👉https://youtube.com/shorts/7Rq0v77lq3Q
Funny jokes 3
👉https://youtube.com/shorts/VJe4DCE9lLs
Funny joke 2
👉https://youtube.com/shorts/2ouEf37QtdQ
Funny joke 1
👉https://youtube.com/shorts/OJ2-YEfl2uw
Tongue twister_whose/shoes/choose
👉https://youtube.com/shorts/S9Rrw_scQ8o
Tongue twister_birdie vs turdie vs pie
👉https://youtube.com/shorts/yvOv4EVm6Xc
Tongue twister_scream vs ice cream
👉https://youtube.com/shorts/KBi79AOOPow
Tongue twister_fuzzy vs wuzzy
👉https://youtube.com/shorts/pwGPW_cWdxc
Tongue twister_whether vs weather
👉https://youtube.com/shorts/_3yjqCC4ASA
Read with me_Irregular verbs Part A
👉https://youtube.com/shorts/OfA0FlrxVy8
Read with me_Irregular verbs Part B
👉https://youtube.com/shorts/GV9iXpKMUAk
📍📍歡迎收看《Fun Games系列》📍📍
Make a guess
👉https://youtu.be/J0E2LF9_chU
Quiz Time
👉https://youtu.be/M4JrGzedjH0
Quiz Time
👉https://youtu.be/k7cTb77sh1Q
Quiz Time
👉https://www.youtube.com/watch?v=QGwhG4Mk_Ow&t=5s
Quiz Time
👉https://www.youtube.com/watch?v=xDUJPNRh3mA
📍📍歡迎收看《Basic conversation系列》📍📍
Lesson 13_Talking about location
👉https://youtu.be/0d3Zt_ezKbA
Lesson 12_How are you
👉https://youtu.be/0PPU7jyk30M
Lesson 11_In the shopping mall
👉https://youtu.be/bmM6fTPNHO4
Lesson 10_In a flower shop
👉https://youtu.be/j_ROyW4aNig
Lesson 9_How can I help you
👉https://youtu.be/6Nx1dXLeQMU
Lesson 8_Talking about your best friend
👉https://youtu.be/NknxeVxhP7A
Fun Lesson_Different languages
👉https://youtu.be/mCJPRD7pahw
Lesson 7_Apply for a library card and borrow books
👉https://www.youtube.com/watch?v=5XCmL9clkQY
Lesson 6_Ordering food
👉https://youtu.be/xaJKiHn6vuc
Lesson 5_Visiting friends
👉https://youtu.be/5TkeC8iirVA
Lesson 4_Making phone calls
👉https://youtu.be/B2CUxLSK5CU
Lesson 3_Types of weather
👉https://youtu.be/ivyo-t50qnw
Lesson 2_Days in a week
👉https://youtu.be/fAtrVak5qLo
Lesson 1_Greetings
👉https://youtu.be/hl_foOF6EjY
📍📍歡迎收看其他《Vocabulary詞匯系列》📍📍
Animals on land_陸地動物
👉https://youtu.be/XxZXjGkJkCQ
Animals in the sea_海洋動物
👉https://youtu.be/gN7GsS6cCeg
Parts of the body_身體部份名稱
👉https://youtu.be/GviCG650sng
Theme Park facilities_主題公園設施
👉https://youtu.be/RiP4etv1ANs
Famous Landmarks_國家名勝地標名稱
👉https://youtu.be/-_rRauEiDic
Colour_顏色
👉Part 2https://youtu.be/78xUTO1My_E
Furniture in the living room_客廳內傢俱名稱
👉https://www.youtube.com/watch?v=smN7hHwHL1g
2D shapes_平面形狀的名稱
👉https://www.youtube.com/watch?v=P4wT5wmqIRY
Jobs_職業名稱
👉https://www.youtube.com/watch?v=NYDTE...
Hairstyle_不同髮型的英文名稱
👉https://www.youtube.com/watch?v=PU_BB2Kvj_w
Solar System_太陽系
👉https://www.youtube.com/watch?v=Qwwczge-_ks
Tableware_餐具名稱
👉https://www.youtube.com/watch?v=rm4FNlRQZxE
Hats_帽子的名稱
👉https://www.youtube.com/watch?v=Pl3g8JgXeGc
Egg_蛋的不同煮法名稱
👉https://www.youtube.com/watch?v=alwVK7zoplc
National Flags_國家及國旗
👉https://youtu.be/tBwHd6XHfE0
The 12 Chinese Zodiac_12生肖
👉https://youtu.be/ii8djvnF-pk
Fruit_水果名稱
👉https://youtu.be/ozwI9sk-bo4
Stationery_文具名稱
👉https://youtu.be/jsjwHTaWfkg
Colour_顏色 Part 1
👉https://youtu.be/AiiGKUEuWx4
📍📍歡迎收看《停課不停學系列》 📍📍
Number 1-10
👉https://youtu.be/wVn_0fY5i1o
Fruit
👉https://youtu.be/C3jy63nGhgA
Transportation in HK
👉https://youtu.be/5qQX0ymwwqo
Vegetables
👉https://m.youtube.com/watch?v=iu1OnlmqRI4
Sports
👉https://youtu.be/eF_Dv6owlM8
Relaxing activities
👉https://www.youtube.com/watch?v=ROv7OlyXe0A
📍📍歡迎收看《Writing a composition系列》 📍📍
👉School Picnic Day
https://youtu.be/GNXyS84JrQo
At the beach
👉https://www.youtube.com/watch?v=WcERiNMpb9s
📍📍歡迎收看《小一叩門面試》系列 📍📍
👉School Interview_Part 1:Talking about yourself
https://www.youtube.com/watch?v=wWTwr2o4_uo
👉小一叩門：不能不看題目背後的真正意義
https://m.youtube.com/watch?v=msqXn02v8tw
👉小一叩門：面試陷阱
https://m.youtube.com/watch?v=OrTx4B_cnkw
Kevin MacLeod創作的「Ambiment - The Ambient」是依據 創用 CC (姓名標示) 4.0 授權使用。 https://creativecommons.org/licenses/by/4.0/
來源： http://incompetech.com/music/r....oyalty-free/index.ht
藝人： http://incompetech.com/
Kevin MacLeod創作的「Guess Who」是依據 創用 CC (姓名標示) 4.0 授權使用。 https://creativecommons.org/licenses/by/4.0/
來源： http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100214
藝人： http://incompetech.com/
State of Georgia 7th Grade Math Year in Review
Topics covered this video
Adding sign numbers
Subtracting sign numbers
Dividing Decimals
Multiplying fractions
Divide mixed numbers
Convert fractions to a decimal
Convert percent to a decimal
Convert decimal to a percent
Example Problems
-3 + 9
-24 + -17
72 - -5
-93.1 ÷ 24.5
3/4 * 1 2/3
convert 2/5 to a fraction
convert 5/8 to a decimal
convert 20% to a fraction
7th Grade Math Playlist ( Entire Year)
https://www.youtube.com/playli....st?list=PLurjkZV1ykG
A scientific name uses a two part naming system called binomial nomenclature.
The first part on the name describes the genus the organism belongs to, and the second part is the species.
Transcript
http://www.moomoomathblog.com/....2021/05/all-about-sc
Build this pressure sensitive switch using basic materials.
This tutorial shows how logarithms can be used to solve variables in an an exponent.
Join this channel to get access to perks:
https://www.youtube.com/channe....l/UCn2SbZWi4yTkmPUj5
:)
This tutorial shows how to extend the distributive property to simplify variable expressions.
Join this channel to get access to perks:
https://www.youtube.com/channe....l/UCn2SbZWi4yTkmPUj5
:)
Join me on this lesson where I will teach you the Absolute Value Calculator Basics and how to graph absolute value equations using a graphing calculator TI-84. Lesson Guide: bit.ly/2JdjCOb
This Absolute Value Calculator Basics and Graphing Absolute Value Equations includes a free lesson guide and Solving Absolute Value Equations worksheet with an answer key. Click the links below to get yours:
★Get Your Free Absolute Value Calculator Basics: bit.ly/2JdjCOb
★Get Your Free Absolute Value Calculator Basics: bit.ly/2JdjCOb
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In this lesson, we will explore the Side Angle Side (SAS) and Angle Side Angle (ASA) triangle congruence theorems.
Tags: triangle sas,triangle asa,proving triangles congruent proofs,proving triangles congruent sss sas,proving triangles congruent by sss sas asa and aas,proving triangles congruent sas,triangle proofs sss sas asa aas,triangle proofs khan academy,triangle proofs explained,triangle proofs reasons,side angle side geometry,side angle side triangle,side angle side theorem,angle side angle,side angle side,angle side angle congruence,angle side angle theorem proof
#MashupMath
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My Daddy (PEPPA PIG)
Read by Let’s Read Stories
Just in time for Father's Day, read all the things Peppa loves about Daddy Pig. From cuddling up for bedtime stories to playing in the sand at the beach, Peppa and George love spending time with Daddy Pig no matter where they are!
Just in time for father’s day, beginning readers can join in with this Peppa Pig story for Father’s Day. Help your little one develop a love for reading and build literacy skills. Site and sound words are perfect to read along with as children begin to speak. Peppa Pig short stories read aloud are perfect for supplemental reading, story time, bedtime, or just entertainment. Thanks for watching!
Click here to purchase My Daddy (PEPPA PIG): https://www.amazon.com/My-Dadd....y-Peppa-Pig/dp/14093
This is the story of how a young Englishman named William Shakespeare stormed London's theater scene in the late 16th century, and wrote a bunch of plays and poems that have had pretty good staying power. We'll learn about Shakespeare's beginnings, his family, and how he broke into theater
Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse
Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:
Mark Brouwer, Glenn Elliott, Justin Zingsheim, Jessica Wode, Eric Prestemon, Kathrin Benoit, Tom Trval, Jason Saslow, Nathan Taylor, Divonne Holmes à Court, Brian Thomas Gossett, Khaled El Shalakany, Indika Siriwardena, SR Foxley, Sam Ferguson, Yasenia Cruz, Eric Koslow, Caleb Weeks, Tim Curwick, Evren Türkmenoğlu, D.A. Noe, Shawn Arnold, mark austin, Ruth Perez, Malcolm Callis, Ken Penttinen, Advait Shinde, Cody Carpenter, Annamaria Herrera, William McGraw, Bader AlGhamdi, Vaso, Melissa Briski, Joey Quek, Andrei Krishkevich, Rachel Bright, Alex S, Mayumi Maeda, Kathy & Tim Philip, Montather, Jirat, Eric Kitchen, Moritz Schmidt, Ian Dundore, Chris Peters, Sandra Aft, Steve Marshall
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Today, we're going to talk about how the Earth moves, but to do that, we're going to have to go way back to the early days of the galaxy! Processes that happened before the Earth even formed have led us to the geographic patterns and processes that create Earth's environments and support all living things. We'll talk about how the Earth rotates, the effects of it being slightly tilted, how events like sea ice melting impact how the Earth wobbles, and of course talk about how our elliptical orbit gives us seasons. So many of our life decisions are influenced by the motion of Earth. It guides where we decide to live, what food we eat, or even what weather we experience - which we'll talk about more next time.
Watch our videos and review your learning with the Crash Course App!
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Eric Prestemon, Mark, DAVID MORTON HUDSON, Perry Joyce, Isaac Liu, Scott Harrison, Mark & Susan Billian, Junrong Eric Zhu, Alan Bridgeman, Jennifer Smith, Matt Curls, Tim Kwist, Jonathan Zbikowski, Jennifer Killen, Sarah & Nathan Catchings, Brandon Westmoreland, team dorsey, Trevin Beattie, Eric Koslow, Indika Siriwardena, Khaled El Shalakany, Shawn Arnold, Siobhán, Ken Penttinen, Nathan Taylor, William McGraw, Jirat, Brian Thomas Gossett, Ian Dundore, Jason A Saslow, Jessica Wode, Caleb Weeks
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#CrashCourse #Geography
In which John Green teaches you about the European Renaissance. European learning changed the world in the 15th and 16th centuries, but was it a cultural revolution, or an evolution? We'd argue that any cultural shift that occurs over a couple of hundred years isn't too overwhelming to the people who live through it. In retrospect though, the cultural bloom in Europe during this time was pretty impressive. In addition to investigating what caused the Renaissance and who benefitted from the changes that occurred, John will tell you just how the Ninja Turtles got mixed up in all this.
Chapters:
Introduction: The Renaissance 00:00
Themes in Renaissance Art 1:07
Humanist Scholars of the Renaissance Era 1:48
When was the Renaissance? 2:52
Why the Renaissance Happened in Italy 3:23
Florentine Textiles 5:08
How Islamic Scholars Helped Create the European Renaissance 6:30
An Open Letter to Copernicus 7:17
Why the Renaissance Didn't Happen 8:12
Credits 10:56
Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse
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Welcome to Adding Mixed Numbers with Mr. J! Need help with how to add mixed numbers? You're in the right place!
Whether you're just starting out, or need a quick refresher, this is the video for you if you're looking for how to add mixed numbers with unlike denominators. Mr. J will go through adding mixed numbers examples and explain adding mixed numbers steps.
About Math with Mr. J: This channel offers instructional videos that are directly aligned with math standards. Teachers, parents/guardians, and students from around the world have used this channel to help with math content in many different ways. All material is absolutely free.
Click Here to Subscribe to the Greatest Math Channel On Earth: https://goo.gl/XHTrfY
Follow Mr. J on Twitter: @MrJMath5
Email: math5.mrj@gmail.com
Music: https://www.bensound.com/royalty-free-music
Hopefully this video is what you're looking for when it comes to adding mixed numbers.
Have a great rest of your day and thanks again for watching!
Thanks for watching!!
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** More Video :
FINGER ABACUS (PART 1) - ABACUS FIRST LEVEL PARCTICE QUESTION PRACTICE :https://youtu.be/czjsJG6FuDA
FINGER ABACUS (PART 2) - ABACUS FIRST LEVEL PARCTICE QUESTION PRACTICE :https://youtu.be/A5r1J98KoQs
Why is an Abacus learning important for children? The Abacus:A Brief Introduction - Abacus ( Part 1) :https://youtu.be/fbZCE6pTpzs
Abacus ( Part 2) | Learning to Count on the Abacus | Hindi | How to Identify Numbers on the Abacus : https://youtu.be/VMK0JKpGZac
Abacus (Part 3)-Learn to Add Numbers with the help of abacus by ABC Tube TV: https://youtu.be/AN9ZOOMVCbs
How to teach abacus to child at home - how to learn abacus in hindi - ABC TUBE TV : https://youtu.be/KuwSK-Pal8I
How to subtract on Abacus | Abacus subtraction method | Abacus Part 4 : https://youtu.be/FkBX4B4IemA
Abacus Part(5) | Direct Addition and subtraction on Abacus | Abacus Tutorial in hindi : https://youtu.be/cc25JY2PRhc
How to teach abacus to kids at home(In Hindi) -Learn Parts of abacus -ABC Tube TV :https://youtu.be/9jK6nOFeUMM
Parts of Abacus -Introduction, Proper Technique-Abacus of kids : https://youtu.be/-HtMhfjLs30
Add and subtract number with the help of fingers abacus :https://youtu.be/nThT0eRBYbw
Learn How to set numbers 1 to 100 on abacus - Counting Numbers 1 to 100 on abacus :https://youtu.be/T5W7MWWaXHY
Learn to count numbers 1 to 10000 with the help of Abacus : https://youtu.be/5z23OGYJS7I
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