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Lesson Plan

Identify all factor pairs for a given whole number by using a t-chart

teaches Common Core State Standards CCSS.Math.Content.4.OA.B.4
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Big Ideas: All whole numbers are either prime or composite. A whole number is a multiple of its factors. In order for students to be successful in multiplication and division, they need a deep understanding of factors and factor pairs. The students were introduced to the vocabulary word "factor" in 3rd grade, but finding all of the factors of a whole number is a new skill for them in 4th. To master this standard, students need to be able to find all factors of the numbers 1-100. They will learn multiple strategies for finding the factors and also for making sure they have found all of the factors. This is not a skill they need to be able to fluently complete in their head by the end of 4th grade, but they do need to master the use of a strategy and be able to prove how using the strategy that they have found all of the factors of a number. Being able to find factors and factor pairs will be imperative to deepening their understanding multiplication and division. Vocabulary: factor, product, t-chart
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