► My Pre-Algebra course: https://www.kristakingmath.com/prealgebra-course
Scientific notation is all about proper form. There’s only format that qualifies as proper scientific notation, and that’s the product of a decimal term and a power of 10. Moreover, the number to the left of the decimal point must be between 1 and 9. So the decimal number can’t be something like 0.13, because 0 is less than 1, and the decimal number can’t be something like 10.4, because 10 is greater than 9. The reason you’ll study scientific notation is Pre-Algebra is because it’s a super convenient way to handle very large numbers, or very small numbers, including both positive and negative numbers.
Ever wondered how to write the distance between earth and the sun as an actual number, when that number is so big? Or how to express the width of an atom as a number, when that number is so small? That’s the kind of thing we use scientific notation for! It gives us a quick, easy way to abbreviate something like 213,000,000,000,000,000,000,000,000, or write something like 0.0000000000000000000000000000184 in a better way.
Skip to section:
0:19 // What is scientific notation?
1:11 // How does scientific notation work? How do you write scientific notation?
6:04 // How do you know where to move the decimal point?
11:38 // What are significant figures in scientific notation?
12:50 // Why is scientific notation useful?
15:38 // How to handle negative numbers in scientific notation?
16:21 // How to add scientific notation?
20:21 // How to subtract scientific notation?
24:35 // How to multiply scientific notation?
26:23 // How to divide scientific notation?
28:42 // Which is larger? (comparing scientific notation)
● ● ●
My math courses // http://www.kristakingmath.com
Facebook // https://www.facebook.com/KristaKingMath/
Twitter // https://twitter.com/KristaKingMath
Instagram // https://www.instagram.com/kristakingmath
● ● ●
Have an idea for what video I should do next? Let me know here: https://goo.gl/forms/98hmLf7ACBz9xttz1
Tagged under: scientific notation,significant figures,negative scientific notation,adding scientific notation,subtract scientific notation,multiply scientific notation,divide scientific notation, larger, scientific notation, scientific notation , scientific notation , scientific notation , scientific notation rules, bigger,comparing, read,standard form,prealgebra,pre-algebra,krista king
Clip makes it super easy to turn any public video into a formative assessment activity in your classroom.
Add multiple choice quizzes, questions and browse hundreds of approved, video lesson ideas for Clip
Make YouTube one of your teaching aids - Works perfectly with lesson micro-teaching plans
1. Students enter a simple code
2. You play the video
3. The students comment
4. You review and reflect
* Whiteboard required for teacher-paced activities
With four apps, each designed around existing classroom activities, Spiral gives you the power to do formative assessment with anything you teach.
Carry out a quickfire formative assessment to see what the whole class is thinking
Create interactive presentations to spark creativity in class
Student teams can create and share collaborative presentations from linked devices
Turn any public video into a live chat with questions and quizzes