In this lesson, we multiplied and divided numbers written in scientific notation. We found that sometimes the hardest part about a word problem was determining whether to multiply or divide based on the situation.
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This lesson formally introduced the concept of scientific notation and gave students the opportunity to add numbers using scientific notation, making sure the numbers has the same magnitude.
In this lesson, we multiplied single digits by powers of ten and estimated very large quantities and very small quantities with more accuracy than we did in the previous lesson.
Today's lesson began the second part of our unit on exponents covering scientific notation. In this first lesson, we introduce the concept of looking at the size of numbers by their integer power of 10--their magnitude. In subsequent lessons, we'll focus on single digits multiplied by powers of ten, and then finally introduce the convention of formal scientific notation.
In this lesson, we reviewed the rules of exponents and discussed the concept of simplifying to distinct primes.
This week we worked with negative exponents, and we used rules of exponents that we already defined to help us better understand why negative exponents make sense.
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April 2016
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