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Today we learned how to complete all four operations with numbers in scientific notation. Check out the videos below for a good review of what we learned in class. Our unit 2 summative assessment is next Tuesday.
Today we learned how to convert between standard form and scientific notation. We covered lessons 4-2 and 4-3, because they were so similar. 4-2 looked at using scientific notation for very large numbers. 4-3 looked at using scientific notation for very small numbers.
We started Scientific Notation! Scientific notation is a way of writing really big or really small numbers as a product of two factors. The first factor has to be a number from 1 up to 10 (but can't include 10). The second factor is always 10 with an exponent.
Today we used all of our exponent strategies to solve problems asking us to compare expressions that have exponents in them. First we worked on writing equivalent expressions. See our examples from Part 1 below. Then we used our equivalent expressions skills to compare expressions using >, <, or =. When our bases are the same, then we can just compare the exponents. Here are our examples from Part 2. In Part 3 we compared expressions that had different bases. Before we can compare these expressions, we need to rewrite them having the same base. See some examples below. Tonight's homework is 3-6 Homework. Topic 3 TEST is on THURSDAY!!!
Today we did a variety of activities to help us review the exponent rules. This weekend please catch up on all exponent homework!!!! Check out the awesome music video below to help you review exponent rules! |
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