Lesson plan

# 9. Practice comparing two-digit numbers using place value (FP)

teaches Common Core State Standards CCSS.Math.Content.1.NBT.B.2 http://corestandards.org/Math/Content/1/NBT/B/2
teaches Common Core State Standards CCSS.Math.Content.1.NBT.B.3 http://corestandards.org/Math/Content/1/NBT/B/3
teaches Common Core State Standards CCSS.Math.Practice.MP2 http://corestandards.org/Math/Practice/MP2
teaches Common Core State Standards CCSS.Math.Practice.MP7 http://corestandards.org/Math/Practice/MP7

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Lesson objective: Compare two-digit numbers using place value.

This lesson helps to build procedural skill in comparing two-digit numbers using place value understandings. Counters are used to support understanding of the quanitites that are represented by a two-digit number. This work develops students' understanding that the meaning of tens and ones help us compare two-digit numbers.

Students engage in Mathematical Practice 2 (students make sense of the relationship between the numerals and the quantities) as they organize counters into groups of tens and ones and use place value ideas to compare quantities. .

Key vocabulary:

• compare

Special materials needed:

• scoops, counters (e.g. linking cubes, paper clips, tiles, etc.)