Lesson plan

# 6. Use multiplication to compare numbers written in scientific notation (FP)

teaches Common Core State Standards CCSS.Math.Content.8.EE.A.3 http://corestandards.org/Math/Content/8/EE/A/3
teaches Common Core State Standards CCSS.Math.Practice.MP5 http://corestandards.org/Math/Practice/MP5
teaches Common Core State Standards CCSS.Math.Practice.MP6 http://corestandards.org/Math/Practice/MP6

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Lesson objective: Make multiplicative comparisons of very large and very small numbers in order to determine how many times as much one number is than another.

This lesson helps to build fluency with comparing numbers written in scientific notation.  A table is used here because it shows place value as powers of ten change. This work develops students' understanding that numbers written in scientific notation can be compared using multiplication.

Students engage in Mathematical Practice 6 (Attend to precision) as they use multiplication to compare numbers written as powers of 10.  Students must be precise in their calculations, giving special attention to how the powers of ten relate to one another.

Key vocabulary:

• base
• coefficient
• exponent
• power
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• 6. Use multiplication to compare numbers written in scientific notation (FP)