Top videos

Teacherflix
21 Views · 4 months ago

Build a custom AI Tutor with Google Gems to protect the "struggle" of learning.

🎓 Learn how to design pedagogical AI that asks questions instead of just giving answers.

AI doesn't have to ruin critical thinking in the classroom. In this video, I’ll show you exactly how to use GoogleGems to build a custom AI coach that aligns with your teaching philosophy. For any subject at any level, you can "architect" a tool that scaffolds challenges and guides students toward owning their own learning.

📥 RESOURCES MENTIONED:
The 4 Pillars of AI Design (PDF Guide): https://thetownsquare.org/resources

Try the "Supportive Math Coach" for Algebra 2: https://gemini.google.com/gem/....10Dqk_TDzjZgyBdx3BAe

Try the "Supportive Math Coach" for Pre-Calculus: https://gemini.google.com/gem/....1-LCD2VGQALMHlR-M1ld

Math Coach System Instructions: https://thetownsquare.org/resource-library

Watch: Prompt Engineering for Teachers: https://youtu.be/GxlOoKI0zxg

📍 TIMESTAMPS:
----------
0:00 Intro
0:54 Demo (math AI)
2:33 Demo (English & Language Arts)
4:22 How to Build Your Own AI
5:28 Use Gemini to write instructions
6:32 Pillars to guide your build
8:01 Finalize the build
6:45 What to Expect in this Series
8:27 Most important concept
----------

💡 WHAT YOU’LL LEARN:
How to turn Gemini into an "eager student teacher" with specific guardrails.
The difference between a "helpful" AI and a Socratic tutor.
Strategic "Chain-of-Thought" prompting to improve AI responses.


💬 JOIN THE TOWN SQUARE COMMUNITY:
www.thetownsquare.org
What is the #1 friction point in your classroom that a Custom Gem could solve? Drop your ideas in the comments—I’d love to help you brainstorm your instructions!

🔔 SUBSCRIBE for more AI tools, tips, and tricks designed specifically for educators

Teacherflix
3 Views · 2 years ago

In this video, with easy examples, kids can learn more about musical figures and rests. With it kids can beef up their musical skills and concepts that they might have learnt at school. This video belongs to a collection of videos about music.

Thanks for visiting us! If you want your children to smile and learn, subscribe! :D

We only upload our own content, designed by educators so that children smile and learn while watching a video.

All of our content reinforces educational values, encouraging the use of multiple intelligences and language learning.

If you like our videos, download “The Smart Library” now. You’ll discover more than 70 interactive games and stories for children designed by educators. The stories are based on VALUES like friendship, respect, and generosity, and our games cover all of the MULTIPLE INTELLIGENCES. All our content is in SPANISH, ENGLISH, FRENCH, ITALIAN and PORTUGUESE.

The perfect tool to use in and out of school.

Download it today!

-Apple Store: https://itunes.apple.com/us/ap....p/smart-edutainment-

-Google Play: https://play.google.com/store/....apps/details?id=net.

www.smileandlearn.com

Thank you for trusting us with your children's education!

Teacherflix
8 Views · 2 years ago

Side 2 i 7.klasse matematik om ligninger

Teacherflix
8 Views · 2 years ago

#precalculus #circle #conicsection

Teacherflix
3 Views · 2 years ago

#precalculus #circle #conicsection

Teacherflix
33 Views · 5 months ago

Three of the worlds most powerful AI models (ChatGPT, Claude, and Gemini) have been given a body in Minecraft and one task, simulate civilization and survive an impending zombie apocalypse. What will they build, how will they survive, and who will win the whole event? Watch to find out how these AI navigate the entirely foreign world of Minecraft.

This video was only possible with the generosity of Emergent Garden so 1000% check him out: https://www.youtube.com/c/EmergentGarden


➤➤ Twitter: https://twitter.com/WifiesWasTaken
➤➤ Discord: https://discord.gg/zAWUuWb


➤➤Links:
THANKS to all the youtubers who voiced the AI -- SUBSCRIBE TO THEM:
Claude: https://www.youtube.com/@CraftyMasterman
Gemini: https://www.youtube.com/@ParrotX2
GPT: https://www.youtube.com/@Kenadian
GPT_2: https://www.youtube.com/@Sipover
GPT_3: https://www.youtube.com/@Wato1876

Thumbnail inspired by Seawattgaming and Yeah Jaron
https://www.youtube.com/SeaWattgaming
https://www.youtube.com/@Yeah_Jaron



🎵 Music licensed from Lickd. The biggest mainstream and stock music platform for content creators

Clair de Lune (Pied au Piano) by Son Lux, Chris Pattishall, https://lickd.lnk.to/W6EJSTID! Wifies License ID: RP7beAW41b4

Try Lickd FREE for 14 days for unlimited stock music and get 50% off your first mainstream track: https://app.lickd.co/r/6c55d93....a97034a8a93533d9875a


This is a series called Minecraft VVSauce where I explore random features of Minecraft. Not Secret Minecraft things or Minecraft lore (like Game Theory) or Escape Rooms, but a research based series dedicated to over-answering questions you never asked.

Teacherflix
22 Views · 10 months ago

🎉 NEW Videos: https://www.youtube.com/playli....st?list=PLLF_mZmNqOn
🕵️‍♀️ Amazing Things for Kids: https://www.youtube.com/playli....st?list=PLLF_mZmNqOn
Curiosities for kids:https://www.youtube.com/playli....st?list=PLLF_mZmNqOn

Hello friends! In this Happy Learning video, we will learn about the greenhouse effect and how it's impacting our planet. Discover how emissions from factories, cars, and chimneys are causing the Earth to warm up. But it's not too late! We can all help reduce the impact. Learn how to recycle, save energy, and care for our nature.
Together, we can make a difference! 🌍💚

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

Teacherflix
10 Views · 2 years ago

Mountains can form through folding, volcanism, and faulting.
Folded mountains form when rock layers are squeezed together and are pushed upward.
Many folded mountains occur at convergent boundaries where continental crust collide
The Himalayas stretch through the borders of China, Nepal, India, and Pakistan is the most towering mountain range on Earth,
Volcanic mountains are created when melted rock erupts onto the earth’s surface. Many volcanic mountains occur at convergent boundaries. Most of the active volcanoes on earth are concentrated around the edge of the pacific ocean.
Fault block mountains form when tension causes the lithosphere to break into normal faults.
At normal faults, the lithosphere drops down. The pieces left standing form fault-block mountains.

Teacherflix
1 Views · 2 years ago

Parents !! Use this channel to help your children learn everything they can about maths. The work videos provided allow your child to sit and practice maths questions easily. Give your children extra practice with math work videos and help give them essential skills that they will use thought their life.

Visit http://www.arithmeticworkout.com
for more math questions and printable sheets,
And https://www.youtube.com/user/C....oolMathWorksheets?fe
for more videos!!

Teacherflix
3 Views · 4 months ago

في هذا الفيديو، نغوص في أعماق أقوى ثنائي في عالم الذكاء الاصطناعي حالياً: Gemini 3.1 و NotebookLM. سنشرح لك كيف تحول ملفاتك ومصادرك إلى قاعدة معرفة ذكية، وكيف تستخدم قدرات Gemini التحليلية المتطورة للوصول إلى نتائج مذهلة في ثوانٍ.

الأمر المستخدم:
ابنِ موقع ويب جاهز للنشر باسم:

"ScienceSpark – الموقع العلمي التفاعلي"

🎯 الهدف
إنشاء موقع علمي جذاب بصريًا ويساعد على شرح المفاهيم العلمية بطريقة سهلة عبر:
تفاعل مباشر
رسوم متحركة
محاكاة بسيطة
أسئلة واختبارات قصيرة
👥 الجمهور المستهدف
طلاب (10–18 سنة) أو أولياء أمور أو معلمين (لغة بسيطة لكن دقيقة علميًا).

#الذكاء_الاصطناعي #Gemini3.1 #NotebookLM #جوجل #صناعة_المحتوى

Teacherflix
4 Views · 2 years ago

#dailyroutine #english #englishfun #vocabulary #温習 #revision #學英文 #英語語法 #英語初學者 #刻意練習 #englishlearning
-----------------------------------------------------------------------------------
💛Please SUBSCRIBE to our channel, LIKE, and SHARE: @learnfast101
💛歡迎訂閱我們的頻道、點讚、分享: @learnfast101
-----------------------------------------------------------------------------------
今日 與小朋友一起練習有關日常活動,英文要怎樣說?
大家一齊練習,一齊讀!

Welcome to watch our videos 歡迎觀看我們所創作的其他影片

👉🏻1) Basic Conversation 會話 https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

👉🏻2) Grammar 語法 https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

👉🏻3)English Speaking https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

👉🏻4)Funny Jokes 笑話 https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

👉🏻5)Vocabulary 詞彙 https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

👉🏻6)English Idioms 英語成語 https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

👉🏻7)Revision Exercise 重温練習 https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

👉🏻8)Fun Games 趣遊戲味 https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

👉🏻9) Tongue Twister 繞口令 https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

👉🏻10)Writing a composition 作文 https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

-----------------------------------------------------------------------------------

Teacherflix
16 Views · 10 months ago

Think you’re good at solving riddles? Let’s find out. 🧩 These 20 brain-twisting puzzles will make you question everything you thought you knew. Some are sneaky, some are funny, and a few might just break your brain — in the best way possible. From classic logic traps to modern mind-benders, get ready to pause, think, and maybe yell “ohhh!” when the answer finally clicks. Ready to turn your brain inside out? Let the riddle madness begin! 🧠⚡

Animation is created by Bright Side.
----------------------------------------------------------------------------------------
Music from TheSoul Sound: https://thesoul-sound.com/

Check our Bright Side podcast on Spotify and leave a positive review! https://open.spotify.com/show/....0hUkPxD34jRLrMrJux4V
Subscribe to Bright Side: https://goo.gl/rQTJZz
----------------------------------------------------------------------------------------
Our Social Media:
Facebook: https://www.facebook.com/brightplanet/
Instagram: https://www.instagram.com/brightside.official
TikTok: https://www.tiktok.com/@bright....side.official?lang=e

Stock materials (photos, footages and other):
https://www.depositphotos.com
https://www.shutterstock.com
https://www.eastnews.ru
----------------------------------------------------------------------------------------
For more videos and articles visit: http://www.brightside.me
----------------------------------------------------------------------------------------
This video is made for entertainment purposes. We do not make any warranties about the completeness, safety and reliability. Any action you take upon the information in this video is strictly at your own risk, and we will not be liable for any damages or losses. It is the viewer's responsibility to use judgement, care and precaution if you plan to replicate.

Teacherflix
4 Views · 2 years ago

Educational video for children to learn about the characteristics and curiosities of elephants. Elephants are vertebrate animals, mammals, and herbivores: they eat roots, leaves and some tree bark. Did you know that females live in herds with their young and males live alone?

This video is a great resource for children to learn some interesting facts about elephants such as where they live and how they reproduce. This video is part of a collection about animals, great for elementary education.

Thanks for visiting us! If you want your children to smile and learn, subscribe! :D

If you like our videos, download Smile and Learn now. You’ll discover thousands of activities for children aged 3 to 12 yeards, all designed by educators. We have hundreds of games, interactive stories and videos in five languages: English, Spanish, Portuguese, Italian, Turkish and French. Try a month for free and start the adventure!

www.smileandlearn.com

Teacherflix
4 Views · 10 months ago

En esta clase de español, exploraremos una serie de diálogos cotidianos que incluyen el uso de verbos con preposiciones.

Estos diálogos nos permitirán entender cómo utilizar estos verbos en situaciones comunes de la vida diaria.

Estos verbos son fundamentales para expresar relaciones espaciales, temporales y de otro tipo.


00:03 Ponerse al día:

Verbos con preposición: Ponerse + al día.
Tiempos verbales: Presente y futuro.
Estructura gramatical: El verbo "ponerse" se utiliza en el presente para expresar una acción habitual o en el futuro para indicar una acción futura planeada. Se combina con la preposición "al" seguida de "día" para formar la expresión "ponerse al día", que significa ponerse al corriente o actualizar.

01:02 Salir adelante:

Verbos con preposición: Salir + adelante.
Tiempos verbales: Presente y futuro.
Estructura gramatical: El verbo "salir" se utiliza en el presente para expresar una acción en curso o en el futuro para indicar una acción futura. Se combina con la preposición "adelante" para formar la expresión "salir adelante", que significa superar dificultades o avanzar.

02:08 Echar de menos:

Verbos con preposición: Echar + de menos.
Tiempos verbales: Presente y condicional.
Estructura gramatical: El verbo "echar" se utiliza en el presente para expresar una acción en curso o en el condicional para indicar una acción hipotética. Se combina con la preposición "de" seguida de "menos" para formar la expresión "echar de menos", que significa extrañar o sentir la ausencia de alguien o algo.

02:59 Ponerse de acuerdo:

Verbos con preposición: Ponerse + de acuerdo.
Tiempos verbales: Presente y futuro.
Estructura gramatical: El verbo "ponerse" se utiliza en el presente para expresar una acción en curso o en el futuro para indicar una acción futura planeada. Se combina con la preposición "de" seguida de "acuerdo" para formar la expresión "ponerse de acuerdo", que significa llegar a un consenso o tomar una decisión conjunta.

03:36 Tener en cuenta:

Verbos con preposición: Tener + en cuenta.
Tiempos verbales: Presente y futuro.
Estructura gramatical: El verbo "tener" se utiliza en el presente para expresar una acción habitual o en el futuro para indicar una acción futura planeada. Se combina con la preposición "en" seguida de "cuenta" para formar la expresión "tener en cuenta", que significa considerar o tomar en consideración algo.

04:40 Dar por hecho:

Verbos con preposición: Dar + por hecho.
Tiempos verbales: Presente y futuro.
Estructura gramatical: El verbo "dar" se utiliza en el presente para expresar una acción habitual o en el futuro para indicar una acción futura planeada. Se combina con la preposición "por" seguida de "hecho" para formar la expresión "dar por hecho", que significa considerar algo como seguro o cierto.

05:24 Ponerse en marcha:

Verbos con preposición: Ponerse + en marcha.
Tiempos verbales: Presente y futuro.
Estructura gramatical: El verbo "ponerse" se utiliza en el presente para expresar una acción en curso o en el futuro para indicar una acción futura planeada. Se combina con la preposición "en" seguida de "marcha" para formar la expresión "ponerse en marcha", que significa iniciar o comenzar a funcionar.

06:08 Llevar a cabo:

Verbos con preposición: Llevar + a cabo.
Tiempos verbales: Presente y futuro.
Estructura gramatical: El verbo "llevar" se utiliza en el presente para expresar una acción en curso o en el futuro para indicar una acción futura planeada. Se combina con la preposición "a" seguida de "cabo" para formar la expresión "llevar a cabo", que significa realizar o ejecutar algo planificado.


En cada diálogo, los tiempos verbales utilizados varían entre presente y futuro, dependiendo de si la acción está ocurriendo en el momento presente o si se trata de una acción futura planeada. La estructura gramatical de cada expresión de verbo con preposición sigue el patrón específico de cada construcción, donde la preposición tiene un papel crucial en el significado de la expresión completa.


¡Suscríbete ✍, dale al like 👍 y activa la 🔔 para no perderte ningún video!

Teacherflix
5 Views · 2 years ago

This physics video tutorial provides a basic introduction into pressure and fluids. Pressure is force divided by area. The pressure due to weight of a fluid can be calculated by finding the product of the density of the fluid, the gravitational acceleration and the depth of the fluid. This video contains plenty of examples and practice problems.

Volume Unit Conversion: https://www.youtube.com/watch?v=ylehgnMC1gw

Specific Gravity & Density of Mixtures:
https://www.youtube.com/watch?v=ZcJGFZt-NO4

Will It Sink or Float?
https://www.youtube.com/watch?v=4fwZM6cqyzk

Intro to Pressure & Fluids:
https://www.youtube.com/watch?v=kkq8ruV8_Jw

Atmospheric Pressure Problems:
https://www.youtube.com/watch?v=tYd_CYpNpeY

____________________________
The Gallon Crusher:
https://www.youtube.com/watch?v=abXVQZlFPJg

Absolute Pressure Vs Gauge Pressure:
https://www.youtube.com/watch?v=XCiBaFp8L_M

Water Pressure Vs Gauge Pressure:
https://www.youtube.com/watch?v=12K_aP1KPFk

Pascal's Principle - Hydraulic Lift System:
https://www.youtube.com/watch?v=MZ6GCH2nLy0

Mercury Barometer Problems:
https://www.youtube.com/watch?v=xQXFWrNmTHc

_____________________________
Open Tube Manometer:
https://www.youtube.com/watch?v=qHPaHMvsXLk

U Tube Manometers:
https://www.youtube.com/watch?v=0CKRGsLZh6Y

Archimedes Principle & Buoyant Force:
https://www.youtube.com/watch?v=Qgl_l0H7Qgc

Full-Length Videos and Worksheets:
https://www.patreon.com/MathSc....ienceTutor/collectio

Physics PDF Worksheets:
https://www.video-tutor.net/ph....ysics-basic-introduc

Teacherflix
16 Views · 10 months ago

The first 500 people to use my link in the description will receive a one month free trial of Skillshare: https://skl.sh/itsokaytobesmart03251
↓↓↓ More info and sources below ↓↓↓

The oldest rocks on Earth are more than just ancient—they’re time machines, holding clues to Earth’s missing history and revealing what happened in the unknown times after the Big Bang. We’ll work with our Adam and Joss from Howtown to learn more and visit our friends at The Smithsonian to examine some of these beyond-ancient rocks ourselves.

Thank you to geochronologists Mike Ackerson and Jesse Reimink for helpful background discussions

Thank you to @Howtown Go check out our collab over on their channel!

0:00 Holding the oldest rocks ever
0:56 The geologic calendar
3:06 Zircon - the Time Lord
4:58 The Oldest Thing on Earth
5:54 Where to find very very very old rocks
9:03 Gneiss guys finish first
10:50 How do we know how old these rocks are?
13:50 A new picture of the early Earth
16:30 Follow me to Howtown!

-----------

High fives to all our Brain Trust Patrons:

Olivia Ruiz
Mike and Patty Loftis
Ed Eyden
Jennifer Burton
Holly, Brett, and Ashe Bullion
Jaap Westera
Barbora Bei
dani bowman
David Johnston
Baerbel Winkler
Eric Meer
Karen Haskell


SUBSCRIBE so you don’t miss a video! ►► http://bit.ly/iotbs_sub

Join us on Patreon!
https://patreon.com/itsokaytobesmart

Instagram
http://www.instagram.com/DrJoeHanson
http://www.instagram.com/okaytobesmart

Facebook
https://www.facebook.com/itsokaytobesmartpbs/

Teacherflix
12 Views · 2 years ago

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ec....onomics-finance-doma

Relationship between the GDP deflator, nominal GDP and real GDP

Watch the next lesson: https://www.khanacademy.org/economics-finance-domain/macroeconomics/gdp-topic/real-nominal-gdp-tutorial/v/example-calculating-real-gdp-with-a-deflator?utm_source=YT&utm_medium=Desc&utm_campaign=macroeconomics

Missed the previous lesson? https://www.khanacademy.org/economics-finance-domain/macroeconomics/gdp-topic/real-nominal-gdp-tutorial/v/real-gdp-and-nominal-gdp?utm_source=YT&utm_medium=Desc&utm_campaign=macroeconomics

Macroeconomics on Khan Academy: Topics covered in a traditional college level introductory macroeconomics course

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 Macroeconomics channel: https://www.youtube.com/channe....l/UCBytY7pnP0GAHB3C8
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Teacherflix
15 Views · 2 years ago

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

Defining discrete and continuous random variables. Working through examples of both discrete and continuous random variables.

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/probability/random-variables-topic/random_variables_prob_dist/e/constructing-probability-distributions?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics

Watch the next lesson: https://www.khanacademy.org/math/probability/random-variables-topic/random_variables_prob_dist/v/discrete-probability-distribution?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics

Missed the previous lesson?
https://www.khanacademy.org/math/probability/random-variables-topic/random_variables_prob_dist/v/random-variables?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics

Probability and statistics on Khan Academy: We dare you to go through a day in which you never consider or use probability. Did you check the weather forecast? Busted! Did you decide to go through the drive through lane vs walk in? Busted again! We are constantly creating hypotheses, making predictions, testing, and analyzing. Our lives are full of probabilities! Statistics is related to probability because much of the data we use when determining probable outcomes comes from our understanding of statistics. In these tutorials, we will cover a range of topics, some which include: independent events, dependent probability, combinatorics, hypothesis testing, descriptive statistics, random variables, probability distributions, regression, and inferential statistics. So buckle up and hop on for a wild ride. We bet you're going to be challenged AND love it!

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 Probability and Statistics channel:
https://www.youtube.com/channe....l/UCRXuOXLW3LcQLWvxb
Subscribe to KhanAcademy: https://www.youtube.com/subscr....iption_center?add_us

Teacherflix
8 Views · 10 months ago

Visit https://www.abcmouse.com/learn/youtube to learn more about our award-winning online learning program for children 2-8!

🕷️ Sing along to "Itsy Bitsy Spider" and many other beloved nursery rhymes in this fun-filled 40-minute compilation for kids! From climbing spiders to rainy days and beyond, this collection of songs is perfect for preschoolers ready to enjoy music, movement, and learning all in one! 🌧️🎶

👉 Discover more fun learning songs and educational videos by subscribing to our YouTube channel at https://YouTube.com/ABCmouse.

And visit https://www.abcmouse.com/learn/youtube to find out more about our award-winning online learning program for children 2–8!

© Age of Learning, Inc. All rights reserved.

Teacherflix
5 Views · 10 months ago

Hent materialet her: https://anettekmatematik.com/h....vilket-kort-mangler-

I dette værksted skal børnene øve sig i at lære et kortspil rigtig godt at kende.
Selvom man tror, at alle børn kender et kortspil og ved, hvor mange kort der er af hver farve og type, så forholder det så sjældent sådan.

Værkstedet egner sig typisk til 1.klasse, og det er en sjov og lærerig aktivitet for eleverne både alene og i små grupper.

Følg mig gerne her:
https://facebook.com/anettekmatematik/
https://instagram.com/anettekmatematik/
https://www.youtube.com/channe....l/UCR8PqEuBE7OlORn2y
https://anettekmatematik.com/

#matematikhjælp #matematikiindskolingen #regnestrategi




Showing 53 out of 94