How to learn Grade 1: Mathematics
Iowa academic standards: Mathematics, Grade 1
0 of 6 concepts ready to learn · Markdown, for your AI
1. Number and Operations in Base Ten · Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases.
- The two digits of a two-digit number: Understand that the two digits of a two-digit number represent amounts of tens and ones
2. Operations and Algebraic Thinking · Fluently add and subtract within 10 using efficient mental strategies.
- Fluent adding and subtracting within 10: Fluently add and subtract within 10
- Fluent adding and subtracting within 20: Fluently add and subtract within 20 using mental strategies; know from memory all sums of two one-digit numbers
3. Operations and Algebraic Thinking · Add and subtract within 20, using strategies such as:
- Addition and subtraction within 20: Add and subtract within 20 using strategies such as making ten, decomposing a number leading to ten, and using known facts
4. Operations and Algebraic Thinking · Use counting and subitizing strategies to explain addition and subtraction.
- Addition and subtraction strategies: Use counting on and counting back as strategies for addition and subtraction
5. Operations and Algebraic Thinking · Use addition and subtraction within 20 to solve word problems involving the problem types listed below, with unknowns in all positions, by using objects, drawings,
- Addition and subtraction word problems: Solve addition and subtraction word problems within 10 using objects or drawings