סרטונים מובילים

Teacherflix
26 צפיות · לִפנֵי 10 חודשים

In this episode, we are focusing on how to use generative AI in the educational sector for creating interactive quizzes, personalized learning activities, and simplified explanations of complex topics.

Stay tuned for more episodes in the 'Mastering Prompts: Crafting AI's Creative Genius' playlist @GenAIExplainedSimply

Teacherflix
26 צפיות · לִפנֵי 1 שָׁנָה

Vampires might be monster royalty, but it wasn’t always so. Learn about the history of the bloodsucking fiends we know and love in this K12 Teaching Moment! #K12TeachingMoment #Challenge #TikTok #Animation

Teacherflix
26 צפיות · לִפנֵי 1 שָׁנָה

Yasuke the Samurai is a legendary figure in history AND pop culture.⚔️🎬 Learn how he became Japan’s first African warrior in this K12 Teaching Moment.
_________________________________________________________________________________

Connect with K12!

Find a school: K12.com
Facebook: facebook.com/StrideK12
Instagram: instagram.com/k12learn
TikTok: tiktok.com/@stridek12

Teacherflix
26 צפיות · לִפנֵי 1 שָׁנָה

#MAGSANAYBUMASA
#ABAKADA
#ONLINE TUTOR
#BASABATA
#MATUTONGBUMASA
#BABEBIBOBU
#KAKEKIKOKU
#DADEDIDODU

Teacherflix
26 צפיות · לִפנֵי 1 שָׁנָה

#ReadingLessonForBeginners
#ReadingTutorialforBeginners
#readinglessonforkids
#teacherayaonlinetutor
#practicereadingenglish
#practicereadingenglish
#learnhowtoread
#LearningIsFun
#englishgrade1
#EnglishReadingLessonGrade1
#EnglishReadingLessonGrade3
#EnglishReadingLessonKinder
#CVC
#CVCsentences
#OnlineReadingLesson
#Poems
#PoemsforKids

Teacherflix
26 צפיות · לִפנֵי 1 שָׁנָה

Reading tutorial video compilation of Teacher Aya Online Tutor.

Teacherflix
26 צפיות · לִפנֵי 2 שנים

Proving that vertical angles are equal

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/geometry/parallel-and-perpendicular-lines/ang_intro/e/congruent_angles?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry

Watch the next lesson: https://www.khanacademy.org/math/geometry/parallel-and-perpendicular-lines/ang_intro/v/angles-formed-by-parallel-lines-and-transversals?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry

Missed the previous lesson?
https://www.khanacademy.org/math/geometry/parallel-and-perpendicular-lines/ang_intro/v/using-algebra-to-find-the-measures-of-vertical-angles?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry

Geometry on Khan Academy: We are surrounded by space. And that space contains lots of things. And these things have shapes. In geometry we are concerned with the nature of these shapes, how we define them, and what they teach us about the world at large--from math to architecture to biology to astronomy (and everything in between). Learning geometry is about more than just taking your medicine ("It's good for you!"), it's at the core of everything that exists--including you. Having said all that, some of the specific topics we'll cover include angles, intersecting lines, right triangles, perimeter, area, volume, circles, triangles, quadrilaterals, analytic geometry, and geometric constructions. Wow. That's a lot. To summarize: it's difficult to imagine any area of math that is more widely used than geometry.

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 Geometry channel:
https://www.youtube.com/channe....l/UCD3OtKxPRUFw8kzYl
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Teacherflix
26 צפיות · לִפנֵי 2 שנים

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ma....th/precalculus/x9e81

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/trigonometry/less-basic-trigonometry/pythagorean-identity/e/pythagorean_identities?utm_source=YT&utm_medium=Desc&utm_campaign=Trigonometry

Watch the next lesson: https://www.khanacademy.org/math/trigonometry/less-basic-trigonometry/angle-addition-formulas-trig/v/sin-angle-addition?utm_source=YT&utm_medium=Desc&utm_campaign=Trigonometry

Missed the previous lesson?
https://www.khanacademy.org/math/trigonometry/less-basic-trigonometry/pythagorean-identity/v/using-the-pythagorean-trig-identity?utm_source=YT&utm_medium=Desc&utm_campaign=Trigonometry

Trigonometry on Khan Academy: Big, fancy word, right? Don't be fooled. Looking at the prefix, tri-, you could probably assume that trigonometry ("trig" as it's sometimes called) has something to do with triangles. You would be right! Trig is the study of the properties of triangles. Why is it important? It's used in measuring precise distances, particularly in industries like satellite systems and sciences like astronomy. It's not only space, however. Trig is present in architecture and music, too. Now you may wonder...how is knowing the measurement and properties of triangles relevant to music?? THAT is a great question. Maybe you'll learn the answer from us in these tutorials!

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 Trigonometry channel:
https://www.youtube.com/channe....l/UCYQSs1lFJZKpyqNQQ
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Teacherflix
26 צפיות · לִפנֵי 2 שנים

This back to school calculus 1 review video tutorial provides a basic introduction into a few core concepts taught in a typical AP calculus ab course or a first semester of college calculus.

Full 1 Hour 30 Minute Video: https://www.patreon.com/MathScienceTutor

Direct Link to Full Video:
https://bit.ly/3sYVl4y

___________________________________
Full 1 Hour 30 Minute Video:
https://www.youtube.com/watch?v=B-v_lb7kE70

Join The Membership Program:
https://bit.ly/46xaQTR

Teacherflix
26 צפיות · לִפנֵי 2 שנים

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/

Teacherflix
26 צפיות · לִפנֵי 2 שנים

Types of Biodiversity
Biodiversity is the variety of life in an area which is determined which is determined by the number of species in that area.
the totality of genes, species, and ecosystems of a region
As biodiversity increases so do the health of the ecosystem increases.
Think of it as if you were running a business.
You want your business to be healthy and make money. Imagine you sell shirts. If you only sold a black shirt with a heart you are limited and if white shirts go out of style you are out of business. If you have a variety of shirts as fashion changes you are better able to adapt to these changes and continue to make money.
As biodiversity increases the ecosystem has a greater ability to adapt to changes.
Biodiversity is broken down into three types
Genetic diversity
Species diversity
Ecosystem diversity

Teacherflix
26 צפיות · לִפנֵי 2 שנים

TeacherTube User: Dreamboxlearning

TeacherTube URL: http://www.teachertube.com/vie....wVideo.php?video_id=

This is a math video lesson to help you with new math, math tricks, and or simple math questions you may have.

Teachers take a tour of DreamBox Learning the online math game for kids

Teacherflix
26 צפיות · לִפנֵי 2 שנים

TeacherTube User: lisalitch

TeacherTube URL: http://www.teachertube.com/vie....wVideo.php?video_id=

This is a math video lesson to help you with new math, math tricks, and or simple math questions you may have.

This fun singalong teaches Addition vocabulary. It is part of the Factivation for Addition fact fluency program. Students love the dancing animals and familiar tune.

Teacherflix
26 צפיות · לִפנֵי 2 שנים

Here, I show a couple more examples of how to solve single variable inequalities.

Join this channel to get access to perks:
https://www.youtube.com/channe....l/UCn2SbZWi4yTkmPUj5

:)

Teacherflix
26 צפיות · לִפנֵי 2 שנים

Det er ikke helt ordinært, når Jesper Binzer pludseligt står der på Bøgescenen sammen med Hej Matematik - men det er fedt!

Teacherflix
26 צפיות · לִפנֵי 2 שנים

What is the difference between bacteria and viruses? In Bacteria and Viruses for Kids, you will learn all about these two microorganisms. The first thing you will learn is that not all bacteria are bad. In fact, the majority of bacteria on the planet and in your body are actually good. You can find bacteria in things like yogurt, soy sauce, and pickles!

So what are bacteria? They are single-celled organisms so small that you can't see them without a microscope. They don't have a nucleus like other single-celled Common shapes include rods, spirals, and spheres. All these organisms move in different ways too. Some move like swimmers using tail-like structures called flagella. Others stay still and don't move much at all. Then there are some that slither or slide their way around.

Most bacteria are not harmful. However, there are some that can make you sick. These are called pathogens. Common pathogens include food poisoning, leprosy, and typhoid fever. To fight these pathogens, you can use antibiotics or antiseptics. You can actually find antiseptics in soaps because it's how you keep your hands clean. Good bacteria, on the other hand, are good for many reasons. They help you digest food and keep your immune system strong. They also break down dead plant and animal material to help keep soil healthy. And, they produce about half of the oxygen in the atmosphere!

What about viruses? All viruses are bad. Scientists debate whether these organisms are living or dead because they don't have an organized cell structure and can't reproduce unless they attach themselves to a living cell. The word virus comes from the Latin word for "slimy liquid." These organisms attack healthy cells. As those cells reproduce, the virus reproduces too and spreads. Many kinds can pass from person to person through hand-shaking, food contact, and through water.

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

https://learnbright.org/lesson....s/science/bacteria-a
https://learnbright.org/lessons/science/germs/
https://learnbright.org/lesson....s/science/influenza-

What you will learn in Bacteria and Viruses for Kids:
0:00 Introduction to bacteria
1:01 What are bacteria and what do they look like?
1:56 All about bad bacteria—pathogens
2:38 All about good bacteria
3:27 Introduction to viruses
4:22 How viruses work
5:29 How to prevent viral infections
6:41 Review of the material

Thank you for watching and learning with us! We’re constantly releasing new content and videos, so click that “Subscribe” button and you’ll get notified.

Find and Follow Us Online:
Facebook: https://www.facebook.com/LearnBright/
Instagram: https://instagram.com/LearnBrightEducation
Pinterest: https://pinterest.com/LearnBrightEducation
YouTube: @LearnBright
Website: https://learnbright.org/

*Teachers and Parents! Did you know? In addition to these great videos, we have also created a library of high-quality and engaging lessons for your elementary aged student(s). Visit us, sign up for a free account, and instantly you'll have access to thousands of lesson plans, learning materials, teaching instructions, activities, and assignments that your kids will really enjoy! We hope to see you soon!

Browse our entire collection of Science lesson plans: https://learnbright.org/lessons/?filter_subject=science

#BacteriaAndVirusesForKids
#Bacteria
#Viruses

Teacherflix
25 צפיות · לִפנֵי 2 חודשים

Things You Didn't Know About MAMMALS | Happy Learning 🐶 🐈 🐬 🦇

Welcome to Happy Learning! 🌟 Ready to dive into the fascinating world of mammals? 🐾🌍 In this exciting video, we'll uncover curious facts about these incredible animals that share our planet. From the speed of the cheetah 🏃 to the intelligence of dolphins 🐬, you'll be amazed by the diversity and abilities of these amazing beings! 🌟📚 Don't miss this chance to learn and marvel at the incredible nature that surrounds us. Join us on this educational adventure and discover the astonishing world of mammals! 🌟🐘🐋 #HappyLearning #Mammals #ExploreNature 🌟🌿

Discover hundreds of never-before-seen resources! Create your free account at https://my.happylearning.tv/ and learn in the most fun way.

Teacherflix
25 צפיות · לִפנֵי 2 חודשים

Discover hundreds of never-before-seen resources! Create your free account at https://my.happylearning.tv/ and start learning in the most entertaining way.

What are you waiting for? In this video we are going to know everything about the Company. As we always tell you, it is very important to know how the world works, to be a part of it.


▶SUBSCRIBE TO HAPPY LEARNING! http://bit.ly/HappyLearningTV
▶Web site: https://happylearning.tv/en/
▶Follow us on Facebook: https://www.facebook.com/HappyLearningTv

Recommended video: The Industrial Revolution
https://www.youtube.com/watch?v=Xh_Lk7kDrUI

Companies are organizations which dedicate themselves
to producing goods or services in exchange for a benefit,
or in other words, for money.

The goods are the products which the companies make.
Some companies make candy, clothes, books full of
stories, and there are companies which make cars. There
are loads of companies all dedicated in manufacturing all
sorts of different products!

If you look around you, all you see has been produced in a
company.

There are also companies which provide services, such as
the transport companies which take us from one place to
another, the hairdressers who don’t sell us anything but
cut our hair and brush it, giving us a service as well as
making us look preIy. Check out all these different hair
styles!

There are a great number of services offered by
companies.

To carry out these activities, companies need material and
human resources. The material resources are what the
companies need to manufacture or produce something.
For example, a bakery needs flour, ovens, utensils,
vehicles to deliver the bread to the clients etc, etc…
A company which produces fruit juice would need fruit, a
juice squeezer, refrigerators, packaging, and trucks for
transportation…

So as to create a product one needs many resources and
that is why we should never waste anything and we must
recycle the juice container for example.
The human resources are the people who work in the
companies. These people are the employees and
employers.

The employers are those who create a company, direct it
and make sure all is working correctly, besides they are
the ones who are risking their money.

The employees are the people who are working in the
company in exchange for a salary, from their pay sheet,
meaning money.

An enterprise´s spirit is one who plans projects and brings
them to life. If you want something, you can have it!
Well now we know what a company is all about. In the
next video we will learn more about different types of
companies.

Teacherflix
25 צפיות · לִפנֵי 3 חודשים

🚀 Become an AI Master – All-in-one AI Learning https://aimaster.me/pro
Studio Neiro AI: https://bit.ly/neiro-ai. Nufa App: https://bit.ly/getnufa
Discount code: master20

Learn how to create AI avatars and generate animated videos using free AI tools like Neiro Studio and Nufa AI. Discover AI avatar generators for smartphones and explore text-to-video capabilities. Master the art of making AI avatars and talking avatars effortlessly with artificial intelligence. Perfect for video editing enthusiasts and anyone interested in AI-driven content creation!

Teacherflix
25 צפיות · לִפנֵי 3 חודשים

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate

Nature is truly the ultimate recycler…
Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub
↓↓↓ More info and sources below ↓↓↓

Waste not, want not… right? Poop, in all of its various forms throughout nature, shapes the world in ways you might not imagine. One creature’s waste is another’s fuel, and all over nature these leftovers help new life spring up. Here’s how whales, birds, worms, bats, and more help the world breathe clean, thanks to their poop.

Thanks to the following for their expert info:
Dr. Richard Kirby (@PlanktonPundit)
David Moscato (@DMos150)
Dr. Cullen Geiselman
Dr. Winifred Frick (@frickwinifred)

Watch our old video: The Ghosts of Evolution https://www.youtube.com/watch?v=ZWW5OuxlKec

-----------
READ MORE:

Ghosts of Evolution by Connie Barlow http://amzn.to/2wfQFLX

How whale poop helps feed the ocean: https://theconversation.com/bo....ttoms-up-how-whale-p

-----------
FOLLOW US:

Merch: https://store.dftba.com/collec....tions/its-okay-to-be
Facebook: http://www.facebook.com/itsokaytobesmart
Twitter: @okaytobesmart @DrJoeHanson
Tumblr: http://www.itsokaytobesmart.com
Instagram: @DrJoeHanson
Snapchat: YoDrJoe
-----------

It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
Director: Joe Nicolosi
Writer: Sarah Keartes
Editor/animator: David Schulte
Producer: Stephanie Noone and Amanda Fox

Produced by PBS Digital Studios
Music via APM
Stock images from Shutterstock http://www.shutterstock.com




Showing 13 out of 14