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# Scientific notation - How many times larger?

Lesson 7 of 10

## Objective: SWBAT determine how many times larger one amount in scientific notation is than another.

## Big Idea: How many times bigger is this than that? Get kids to compare very large and very small amounts, enhancing their number sense.

*75 minutes*

#### Warm Up

*10 min*

Each day, students complete a warm-up that usually consists of spiraling the previous day's material, in addition to older material. Warm-up problems also sometimes extend lessons that students have encountered before to more unfamiliar contexts.

For a video narrative about how I structure each lesson, and how the warm-up fits in, click here.

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#### Huddle

*10 min*

For the huddle in this lesson, I like to talk about #3, since it involves three different items that are very very small, medium, and very very large...

**The mass of a hydrogen atom is 1.67 x 10 ^{-27} kilograms. **

**The mass of an average human being is roughly 6.35 x 10 ^{1} kilograms. **

**The mass of the Earth is 5.97 x 10 ^{24} kilograms.**

We spiral the idea of how to find how much larger one thing is compared to another while marveling at the number of people that are needed to equal the mass of the Earth!

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#### Homework

*15 min*

Homework is to be completed at home and should take students approximately 15 minutes.

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*the area of the largest star is 10^15 miles and the area of the earth is 10^11 .how many time the area of the earth is smaller than star???? | one month ago | Reply*

*the area of the largest star is 10^15 miles and the area of the earth is 10^11 .how many time the area of the earth is smaller than star??? | one month ago | Reply*

Hello,

These activities are perfect for what I need. I love the structure of how you open and move through a lesson. The activities are ready to go for the students. Thank you for sharing.

Sincerely,

Debbie Simmons

| 11 months ago | Reply*expand comments*

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- UNIT 1: FLUENCIES AND THE LANGUAGE OF ALGEBRA
- UNIT 2: SOLVING LINEAR EQUATIONS
- UNIT 3: INTRODUCTION TO FUNCTIONS
- UNIT 4: INTERPRETING AND COMPARING LINEAR FUNCTIONS
- UNIT 5: SYSTEMS OF LINEAR EQUATIONS
- UNIT 6: EXPONENTS AND SCIENTIFIC NOTATION
- UNIT 7: PARALLEL LINES, TRANSVERSALS, AND TRIANGLES
- UNIT 8: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
- UNIT 9: PATTERNS OF ASSOCIATION IN BIVARIATE DATA
- UNIT 10: SLOPE REVISITED
- UNIT 11: VOLUME OF CYLINDERS, CONES, AND SPHERES
- UNIT 12: POLYNOMIALS AND FACTORING
- UNIT 13: QUADRATIC FUNCTIONS

- LESSON 1: Laws of exponents
- LESSON 2: Zero and negative exponents
- LESSON 3: Apply properties to general equivalent expressions
- LESSON 4: Scientific Notation
- LESSON 5: Perform operations with scientific notation 1
- LESSON 6: Perform operations with scientific notation 2
- LESSON 7: Scientific notation - How many times larger?
- LESSON 8: Flexible problem solving with scientific notation
- LESSON 9: Review exponents and scientific notation
- LESSON 10: Assessment #11 - Exponents Unit Assessment