2nd Grade Math Unit 11

Big Idea:

Use pictures, skip counting, repeated addition and repeated subtraction to multiply and divide numbers.

Student Expectations:

Priority TEKS

2.6(A) [Supporting] Model, create, and describe contextual multiplication situations in which equivalent sets of concrete objects are joined

2.6(B) [Supporting] Model, create, and describe contextual division situations in which a set of concrete objects is separated into equivalent sets

Ongoing TEKS

2.4(A) [Supporting] Recall basic facts to add and subtract within 20 with automaticity

2.4(B) [Supporting] add up to four two-digit numbers and subtract two-digit numbers using mental strategies and algorithms based on knowledge of place value and properties of operations

2.4(D) [Readiness] generate and solve problem situations for a given mathematical number sentence involving addition and subtraction of whole numbers within 1,000.

Student Learning Targets:

• I will work to connect repeated addition to model multiplication that involve equal groups.
• I will work to connect repeated subtraction to model division situations that involve equal shares.
• I will connect repeated addition and subtraction to multiplication and division situations that involve equal groupings and shares.

Essential Questions:

• What are equal groups?
• What does it mean for equal groups of objects to be joined?
• What does it mean for a set of objects to be separated into equal groups?
• How is multiplication like repeated addition?
• What does a model for division look like?
• How is division like repeated subtraction?

Extra Information:

Adopted Textbook: Pearson - enVision Math

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