The big ideas in grade 1 include: developing understanding of addition, subtraction, and strategies for addition and subtraction within 20; developing understanding of whole-number relationships and place value, including grouping in tens and ones; developing understanding of linear measurement and measuring lengths as iterating length units; and reasoning about attributes of, and composing and decomposing geometric shapes.
The big ideas in grade 1 include: developing understanding of addition, subtraction, and strategies for addition and subtraction within 20; developing understanding of whole-number relationships and place value, including grouping in tens and ones; developing understanding of linear measurement and measuring lengths as iterating length units; and reasoning about attributes of, and composing and decomposing geometric shapes.
Unit 1: Adding, Subtracting, and Working with Data
Unit 2: Addition and Subtraction Story Problems
Unit 3: Adding and Subtracting within 20
Unit 4: Numbers to 99
Unit 5: Adding within 100
Unit 6: Length Measurements within 120 units
Unit 7: Geometry and Time