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# Flexible problem solving with scientific notation

Lesson 8 of 10

## Objective: SWBAT solve problems involving scientific notation flexibly.

*75 minutes*

#### Warm Up

*10 min*

Each day, students complete a Warmup 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.

See a video of the warm-up from today here:

http://www.youtube.com/watch?v=p6R42-MUCng

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#### Play of the Day

*40 min*

For today's lesson I captured several video resources to portray the lesson in detail. The videos provide a sense of my classroom climate, as well as my students' fluency with problem solving using numbers in scientific notation. During this video students are working on POTD86 Flexible problem-solving with scientific notation:

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#### Huddle

*10 min*

For the Huddle in this lesson, we walk through the very complex question about comparing the total mass of ants to the total mass of humans, and come to the answer. I try not to do too much of the thinking for the kids here... They should be the ones doing the heavy lifting.

See Jeff Li Better Lesson Master Teacher Round 2 Evidence for a detailed presentation of examples of student work with teacher commentary.

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I really love the balance of your lessons of the process and then stepping up with some challenge work trying to engage all learners. After browsing through this unit (rather quickly I must add), I didn't notice anything with the operations of adding/subtracting with scientific notation numbers. Just curious if you teach that, or if maybe you cover that somewhere other than unit 6.

Thank you,

Shelby Ownbey

| 4 months ago | Reply

*Awesome lesson. I love the "hook" that you have at the beginning of the lesson to engage the students. | one year ago | Reply*

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- UNIT 6: EXPONENTS AND SCIENTIFIC NOTATION
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- 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
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