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.
Measure lengths indirectly and by iterating length units.
Tell and write time and money.
Represent and interpret data.
Extend the counting sequence
Understand place value
Use place value understanding and properties of operations to add and subtract.
Reason with shapes and their attributions