Intermediate

Skill and Content Focus
**Operations and Algebraic Thinking** • Understand addition as putting together and adding to, and understand subtraction as taking apart and taking from Number and Operations in Base Ten • Work with numbers 11–19 to gain foundations for place value. **Measurement and Data** • Describe and compare measurable attributes. • Classify objects and count the number of objects in categories.

Instruction
[|What is addition?] [|What is subtraction?] [|Mathematics for Young Learners] [|MathTV]

Practice
[|IXL Common Core Math Practice]

[|Khan Academy Math Practice] (Use the menu on the left to select specific topic)

[|ISAT Practice]