Lesson plan

Compare 3-digit numbers using base 10 modeled drawings

teaches Common Core State Standards CCSS.Math.Content.2.NBT.A.4 http://corestandards.org/Math/Content/2/NBT/A/4

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Big Ideas: We can compare whole numbers by considering like place values. Base 10 blocks or drawing can be used to help compare numbers. Numbers can be compared using the phrases "greater than", "less than", or "equal to". This lesson builds on students' work with base 10 and number comparison. This task asks students to use comparison symbols to compare 3-digit numbers that contain similar digits. They will be asked to justify their answers by drawing a base 10 modeled drawing for each comparison. It is important that students understand that we compare numbers by considering the value of numbers in like place values. When we compare numbers in math we use the phrases "greater than", "less than", and "equal to". Those phrases are commonly represented using comparison symbols (, =). The mathematical concepts in this lesson build number sense, allowing students to manipulate more difficult numbers. Vocabulary: compare, equal, expanded form, digit, value, place, more than, less than, greater than, less than, numeral, number, word form, number parts Special Materials: Base 10 Blocks Task Worksheet