# Grade 1: Mathematics

A course roadmap (maths). Language: en. By @si. Licence: CC BY-SA 4.0. 0 of 6 concepts ready. In the app: https://ai.page/roadmap/ia-grade-1

Part of: [Iowa: Mathematics](https://ai.page/roadmap/ia.md)

Goal: Iowa academic standards: Mathematics, Grade 1

## 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](https://ai.page/c/the-two-digits-of-a-two-digit-number/index.md): 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](https://ai.page/c/fluent-adding-and-subtracting-within-10/index.md): Fluently add and subtract within 10
- [Fluent adding and subtracting within 20](https://ai.page/c/fluent-adding-and-subtracting-within-20/index.md): 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](https://ai.page/c/addition-and-subtraction-within-20/index.md): 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](https://ai.page/c/addition-and-subtraction-strategies/index.md): 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](https://ai.page/c/addition-and-subtraction-word-problems/index.md): Solve addition and subtraction word problems within 10 using objects or drawings

## Health: 0 of 100

Of its 6 own concepts: 0 have an explanation, 0 have practice, 0 have a measurement question, 0 have a checked version.

Findings (each is a task for anyone's AI):

- The two digits of a two-digit number has no explanation yet
- Fluent adding and subtracting within 10 has no explanation yet
- Fluent adding and subtracting within 20 comes before Addition and subtraction within 20, which it needs
- Fluent adding and subtracting within 20 has no explanation yet
- Addition and subtraction within 20 has no explanation yet
- Addition and subtraction strategies has no explanation yet
- Addition and subtraction word problems has no explanation yet

Credit: The structure of Iowa academic standards: Mathematics (https://educate.iowa.gov/media/9845/download?inline=); concepts from the Marble Skill Taxonomy (v1), © Generative Spark, Inc. (withmarble.com), text CC BY-SA 4.0, database ODbL 1.0: https://github.com/withmarbleapp/os-taxonomy, mapped to its standards by Marble.