Operations and Algebraic Thinking • Represent and solve problems involving addition and subtraction. • Understand and apply properties of operations and the relationship between addition and subtraction. • Add and subtract within 20. • Work with addition and subtraction equations.
Number and Operations in Base Ten • Extend the counting sequence. • Understand place value. • Use place value understanding and properties of operations to add and subtract.
Measurement and Data • Measure lengths indirectly and by iterating length units. • Tell and write time. • Represent and interpret data.
Geometry • Reason with shapes and their attributes.
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