Скачать с ютуб Variables & Constants - why use letters? ALGEBRA в хорошем качестве

Variables & Constants - why use letters? ALGEBRA

𝙃𝙤𝙬 𝙏𝙤 𝙎𝙤𝙡𝙫𝙚 𝙒𝙤𝙧𝙙 𝙋𝙧𝙤𝙗𝙡𝙚𝙢𝙨 Paperback: https://amzn.to/46ev44W 𝙁𝙍𝙀𝙀 𝙬𝙤𝙧𝙠𝙨𝙝𝙚𝙚𝙩 𝙛𝙤𝙧 𝙩𝙝𝙞𝙨 𝙫𝙞𝙙𝙚𝙤! Follow along with the video, and fill in the blanks as you go. 📝 https://socraticafoundation.gumroad.c... 𝙎𝙞𝙜𝙣 𝙪𝙥 𝙩𝙤 𝙤𝙪𝙧 𝙢𝙖𝙞𝙡𝙞𝙣𝙜 𝙡𝙞𝙨𝙩 𝙛𝙤𝙧 𝙛𝙧𝙚𝙚 𝙝𝙚𝙡𝙥: ✉️ https://snu.socratica.org/algebra We’ll send emails to keep you updated. Algebra problems are kind of like puzzles. Can you find x? It’s a mystery asking to be solved. But why do we use “x” instead of a question mark or something like that? Why does algebra use letters? In this video, we talk about why letters are used to stand for numbers. Sometimes it’s an unknown number. We call that a variable, and that’s what we’re solving for when we answer a question in algebra. Other times, we know what the number is, but we don’t want to write it out. One example is c, the speed of light, which is a constant (299,792,458 meters/second). c is used in physics and astronomy. Another example is pi (the Greek letter), which stands for 3.14159…(it goes on forever). Pi is used when you do calculations involving the circumference, diameter, radius, and area of a circle. These numbers come up a lot in math and science, so we all agree to use the same letter to stand for them. When you use letters in place of variables and constants, it makes equations much faster and easier to read. Using letters in math saves a LOT of time and paper when you're writing, too. ⏩ 𝙅𝙪𝙢𝙥 𝙩𝙤 𝙩𝙝𝙚𝙨𝙚 𝙨𝙚𝙘𝙩𝙞𝙤𝙣𝙨 𝙞𝙣 𝙩𝙝𝙚 𝙫𝙞𝙙𝙚𝙤: 0:00 Introduction 0:48 Why do we use letters in equations? 1:20 Why use a dot for multiplication? 1:40 What’s a variable? 2:25 The speed of light, c, is an example of a constant 3:45 pi (the Greek letter) is another example of a constant 5:00 Demonstration of using letters in math 📖 𝙑𝙊𝘾𝘼𝘽𝙐𝙇𝘼𝙍𝙔 𝙏𝙀𝙍𝙈𝙎 𝙞𝙣 𝙩𝙝𝙞𝙨 𝙫𝙞𝙙𝙚𝙤: variable constant pi (Greek letter) diameter circumference c (speed of light) equation 📚 𝙒𝙚 𝙧𝙚𝙘𝙤𝙢𝙢𝙚𝙣𝙙 𝙩𝙝𝙚 𝙛𝙤𝙡𝙡𝙤𝙬𝙞𝙣𝙜 𝙧𝙚𝙨𝙤𝙪𝙧𝙘𝙚𝙨: 𝙃𝙤𝙬 𝙏𝙤 𝘽𝙚 𝙖 𝙂𝙧𝙚𝙖𝙩 𝙎𝙩𝙪𝙙𝙚𝙣𝙩 ebook: https://amzn.to/2Lh3XSP Paperback: https://amzn.to/3t5jeH3 Kindle Unlimited: https://amzn.to/3atr8TJ 𝙃𝙤𝙬 𝙏𝙤 𝙎𝙤𝙡𝙫𝙚 𝙒𝙤𝙧𝙙 𝙋𝙧𝙤𝙗𝙡𝙚𝙢𝙨 Paperback: https://amzn.to/46ev44W 𝙒𝘼𝙏𝘾𝙃 𝙉𝙀𝙓𝙏: Algebraic Expressions ▶️    • What are Algebraic Expressions? ALGEBRA   How Long is that Cat? Algebra Word Problem: ▶️    • How Long is that Cat? 🐈 Algebra Word ...   SMARTER Study Tips from Socratica: ▶️ http://bit.ly/StudyTipsPlaylist This video was made possible by The Socratica Foundation. 𝙎𝙪𝙥𝙥𝙤𝙧𝙩 𝙩𝙝𝙞𝙨 𝙣𝙤𝙣𝙥𝙧𝙤𝙛𝙞𝙩: 💚💙💜 https://socratica.kindful.com The Socratica Foundation is an educational nonprofit with the mission to build the essential, universal knowledge base every student needs to succeed. We provide a solid educational foundation in the three timeless pillars: literacy, numeracy, and critical thinking. 🦉 https://www.socratica.org/ 𝘾𝙧𝙚𝙙𝙞𝙩𝙨: Instructor: Michael Lee Harrison Produced by Michael Lee Harrison and Kimberly Hatch Harrison Edited by Megi Shuke Musical Theme: KITT by Falls (LMQHEMQDPKGO3BX5) #Math #Algebra #Variable