This trigonometry video tutorial discusses common trig identities and formulas such as the pythagorean identites, reciprocal identites, quotient identities, even odd identities, cofunction identities, double angle formulas, half angle formulas, sum and difference identities, power reducing formlas, product to sum identities, and sum to product identities.

Access Full-Length Premium Videos: https://www.patreon.com/MathScienceTutor
_____________________________________________________________________________________________
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
______________________________________________________________________________________________
Reference Angles: https://www.youtube.com/watch?v=E-xFXpVo14o
The Six Trigonometric Functions: https://www.youtube.com/watch?v=WvoFgL4P_rw
How To Solve Right Triangles: https://www.youtube.com/watch?v=i3bjEOA5_zc
Reciprocal Identities: https://www.youtube.com/watch?v=UeuuFqbTYgA
Quotient Identities: https://www.youtube.com/watch?v=7PVKbyLFY5U
Even and Odd Trigonometric Identities: https://www.youtube.com/watch?v=5p8hokJ3Cqo
Pythagorean Identities: https://www.youtube.com/watch?v=TpADRvW8zm8
Trig Functions - Periodic Properties: https://www.youtube.com/watch?v=8Z60_yXX4xA
Trigonometry For Beginners: https://www.youtube.com/watch?v=PUB0TaZ7bhA
The Exact Value of Trig Functions: https://www.youtube.com/watch?v=bTdjcvm6pPo
Special Right Triangles - 30 60 90: https://www.youtube.com/watch?v=p70UBGCHZrQ
Special Right Triangles - 45 45 90: https://www.youtube.com/watch?v=xzMirNSv1d0
Cofunction Identities: https://www.youtube.com/watch?v=35fxto48HZY
______________________________________________________________________________________________
Angle of Elevation Problems: https://www.youtube.com/watch?v=uyKvSe6Ltgs
Evaluating Trig Functions Given a Point: https://www.youtube.com/watch?v=P8rdY2ahkms
Exact Value of 5 Remaining Trig Functions: https://www.youtube.com/watch?v=H7GwDntpGUY
Evaluate Trig Functions - Reference Angles: https://www.youtube.com/watch?v=V8LEHEzdU2U
How To Graph Trig Functions: https://www.youtube.com/watch?v=fo_q9mEAFp4
How To Graph Sine and Cosine: https://www.youtube.com/watch?v=bm8oYKKlCXI
Evaluating Inverse Trig Functions: https://www.youtube.com/watch?v=jt7p-mCC0ng
Finding The Missing Side of a Triangle: https://www.youtube.com/watch?v=tielQ3ejh70
Finding The Missing Angle of a Triangle: https://www.youtube.com/watch?v=4Dv5IFqATrc
Two Triangle Trigonometry Problems: https://www.youtube.com/watch?v=OTP885mApV8
Bearings Vs Direction - Word Problems: https://www.youtube.com/watch?v=jyi5zW8mavs
Two Triangle Problems - More Examples: https://www.youtube.com/watch?v=QM1T6eL8t48
_____________________________________________________________________________________________
Verifying Trig Identities: https://www.youtube.com/watch?v=Rf05H8ogHLg
Trigonometry Final Exam Review: https://www.youtube.com/watch?v=OAsbx4TEnL0

Take the 2017 PBS Digital Studios Survey: http://surveymonkey.com/r/pbsds2017. Today we’re going to create memory! Using the basic logic gates we discussed in episode 3 we can build a circuit that stores a single bit of information, and then through some clever scaling (and of course many new levels of abstraction) we’ll show you how we can construct the modern random-access memory, or RAM, found in our computers today. RAM is the working memory of a computer. It holds the information that is being executed by the computer and as such is a crucial component for a computer to operate. Next week we’ll use this RAM, and the ALU we made last episode, to help us construct our CPU - the heart of a computer.

*CORRECTION*

In our 16x16 Latch Matrix graphic, we inadvertently left off the horizontal row access line above the top row of latches. As a result, the highlighted line for the row at address 12 should actually be one line higher.


Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios

The Latest from PBS Digital Studios: https://www.youtube.com/playli....st?list=PL1mtdjDVOoO

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This chemistry video tutorial provides a basic introduction into Le Chatelier's Principle of chemical equilibrium. It explains how to determine which direction the reaction will shift if the concentrations of the reactants or the products increase in value. It discusses the effect of adding a catalyst or an inert gas on the position of equilibrium. It also discusses the effect of changing the volume and pressure on equilibrium.

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Decimals are easy to multiply - just count the number of places behing the decimal place for each of the numbers you are multiplying, then add these together to get the total number of decimal places required for your answer.
For example:
1.5 (1) x 1.5 (1) = 2.25 (2) The numbers of decimal praces are shown in brackets.

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This video explains how to calculate the circumference of a circle.

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This is a re-upload to correct some terminology.
In the previous version we suggested that the terms “odds” and “probability” could be used interchangeably. While this may be okay in casual conversation (since both have to do with the likelihood of an event), the two terms mean something slightly different in math and are calculated differently. We apologize for any confusion.

The trick to getting the right answer with volume calculations every time. Be a math genius with mental math. To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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4th Grade teachers, explore Numberock’s equally fun teaching resources with a free month of access available for a limited time at http://numberock.com/letsrockmath

Learn all about converting fractions to decimals in this song about decimal notation. Relating fractions to decimals opens up a whole new world for students as they learn about our base ten number system, and this song will take them to that new world in style. The bridge of this song uniquely covers the labeling of a specified point that represents a decimal number to the tenths or hundredths place on a number line.

This song targets learning standards from 4th Grade - 5th Grade.
Thank you for watching our Decimal Notation | Relating Fractions to Decimals Song

»»-------------¤-------------««»»-------------¤-------------««

Newly Available for Website Subscribers:
1. Number Notes | Highly-visual math worksheets that integrate drawing and creative processes that make problem-solving and note-taking way more fun.

Research has shown that resources like these worksheets help students to integrate their artistic side with the mathematical side of their brain and as a result aides with long-term memory retention.

Our own research has shown us that teachers who try these activities love them! It seems to be a natural extension beyond song and video and into additional visual learning tools that when used in concert with our videos, cater to the many different types of learners that in your classroom - especially those non-mathy types.

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Phases of the Moon is a great introduction to the moon for kids. In this video we will learn all about the moon, the effects that it has on the earth, and how it orbits. We also talk about the first people who landed on the moon (Neil Armstrong and Buzz Aldrin). Last but not least we will learn all about and explain the different phases of the moon, including: New Moon, First Quarter Moon, Last Quarter Moon, Full Moon, Gibbous Moon, and Crescent Moon.

After finishing the video, head over to our site and download our free 9 page moon lesson plan. This lesson plan is build for 1st - 3rd grade and comes complete with instruction pages, activities, worksheets and more! Download here: https://learnbright.org/lessons/science/the-moon/

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How to work out IV rates. This part of a series looking at math calculations used by nurses. T

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Theodore Seuss Geisel wrote over 60 books, and he illustrated them too! His artwork is iconic, and you could recognize one of his characters easily. The children's books he wrote have influenced many people around the world. Here's a short rap to remind us how amazing this author was!

We hope you and your student(s) enjoyed learning a little about Dr. Seuss in a fun way! If you want even more practice, head over to our website and download one of our many free lesson plans about reading, full of activities, worksheets, and more!

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What is the difference between something that is alive and something that is not? You and your kids will learn all about the characteristics of both living and non-living things. Both have special characteristics that differentiate the two groups. Living things grow, eat, and reproduce. They can also breathe, have senses, and move. However, some non-living things can move, too. Think about fire or water. They aren't alive, but they definitely move!

Things that are alive grow, such as chicks that become hens or sprouts that become plants. They also have to eat, or take in nutrients, to survive. Different species need different nutrients, but they all require nutrients to live and grow. And both plants and animals reproduce to create more of their own kind. Non-living things can't do any of these things.

In addition, things that are not alive also do not breathe or have senses. For instance, a teddy bear cannot feel you touch it. A waterfall cannot see anything. However, some of these objects do move. As mentioned, fire and water aren't alive, but they move all on their own. Other things, like cars, can move as well, but not on their own. These objects require people to make them move. In addition, non-living things can be solids, liquids, or gases.

We hope you and your student(s) enjoyed learning about what determines if something is alive! If you want even more information, head over to our website and download one of our many free lesson plans, full of activities, worksheets, and more!

https://learnbright.org/lesson....s/reading/living-and

What you will learn in Living and Non-living Things for Kids:
0:00 Introduction to living and non-living things
0:34 What it means to be a living thing
1:15 Living things can grow
1:44 Living things can take in nutrients and reproduce
3:28 Characteristics of non-living things
4:41 Compare living and non-living things
5:23 Review of the facts

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On this lesson, you will learn how to solve quadratic equations by completing the square using the completing the square formula (in 3 easy steps!) that includes 3 completing the square examples. Lesson Guide: https://bit.ly/2JzOecQ

Key Questions: How to complete the square? How to solve by completing the square? What are the complete the square steps? This Completing the Square lesson includes a free lesson guide and worksheet with an answer key. Click the links below to get yours:

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After world war two in a rapidly changing world, young men were called up in Britain to become peacetime conscripts and do national Service.

Credit:

Narrator:

Christian H Miles

Artwork:
Daniel turner

Direction, Animation:
Daniel Turner

Music:

Joshua LF Mitchell

https://soundcloud.com/joshualfmitchell

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We hope you enjoy our latest video giving you some great 4th of July facts and history for kids!

Thank you for following Clarendon Learning. Clarendon Learning is a non-profit that was organized with the sole purpose to aid in the education and strengthening of America’s youth. Clarendon Learning hopes to create bright futures for children across the country by supporting teachers and parents, and developing high quality educational content for kids.

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North Korea is one of the most isolated and closed off countries in the world. Its official name is the Democratic People's Republic of Korea. The country is roughly the size of the U.S. state of Pennsylvania. And its total population is estimated to be around 25 million people. In All about North Korea for Kids, you will learn a lot more about this country, even though it's not easy to visit.

The government in North Korea is communist, meaning that it controls the lives of most of its citizens, even down to people's haircut! There are only 28 approved haircuts, so every citizen must choose from that list which hair style they want. Citizens can also be arrested for watching certain movies or practicing certain religions. They are also not allowed to talk about ideas that go against the government.

The government also controls the media and news. Propaganda, or news that makes the country look good, is common in the country, and there is no internet access. In fact, most North Koreans have never even seen a computer. Additionally, few people are allowed to leave the country, and only a few people are allowed to visit. Those individuals can only see approved parts of North Korea and are watched closely.

When Japan lost the war in World War II, the Soviets gained control of northern half of the Korean peninsula, so North Korea became a communist country. The Americans controlled the southern half, so South Korea became a democratic country. When the Soviets left in 1948, many conflicts between the two Korean countries arose. After a resulting Korean war, the same family has maintained control of North Korea and kept it isolated from the world.

We hope you and your student(s) enjoyed learning about Anne Frank! If you want even more information, head over to our website and download one of our many free lesson plans, full of activities, worksheets, and more!

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What you will learn in All about North Korea for Kids:
0:00 Introduction to the isolated country of North Korea
0:22 Geography of North Korea
1:32 Landscape and three main regions
2:56 Mineral resources and energy sources
3:22 Communist government and North Korean law
4:08 Unique ways North Korea is different from others
5:02 Why North Korea is closed off from the world
6:19 After Soviets left North Korea
7:13 Interesting landmarks and attractions
8:07 Review of the facts

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War is all about eliminating the enemy before he gets a chance to eliminate you.
Throughout History, during conflicts and rebellions and wars, it has not been unusual for soldiers to be killed by their own side, either deliberately or by accident.
Friendly Fire or Fratricide relates to “accidental damage by allied troops to one’s own installations, aircraft, or personnel.” Friendly accidents that result in the deaths of fellow soldiers, often also referred to as a blue on blue incident, can happen quite easily, even in modern warfare where highly sophisticated weapons and reconnaissance equipment are involved. Friendly Fire has always been commonplace in warfare and will, unfortunately, continue to occur.


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Credit:
Created by Daniel Turner (B.A. (Hons) in History, University College London)
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Ability to calculate in your head can build your confidence and improve your studies like no other skill. And when it does, you earn the opportunity to change lives. Master The Numbers. Help Your Class Fellows.

If you are a student of grade 6 to grade 10, this channel is particularly for you and for all others who want to be able to calculate in their heads? We help you master the numbers, play with them, manipulate them, calculate and handle big numbers in your head, and much more. Wonder what these skills can do to you?

- Boost your confidence.
- Show off. Become life of every gathering.
- Stop struggling in Math.
- Improve grades.
- Break calculations world records.
- Make you look like a genius.
- Most importantly, help others.