2.1 Adding, Subtracting, and Working with Data

Unit Goals

• Students represent and solve story problems within 20 through the context of picture and bar graphs that represent categorical data. Students build toward fluency with addition and subtraction.

Section A Goals

• Build toward fluency with adding within 100.
• Build toward fluency with subtracting within 20.

Section B Goals

• Interpret picture and bar graphs.
• Represent data using picture and bar graphs.
• Solve one- and two-step problems using addition and subtraction within 20.

Section C Goals

• Make sense of and interpret tape diagrams.
• Represent and solve Compare problems with unknowns in all positions within 100.

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