# Grade 1: Mathematics

A course roadmap (maths). Language: en. By @si. Licence: CC BY-SA 4.0. 0 of 8 concepts ready. In the app: https://ai.page/roadmap/sd-grade-1

Part of: [South Dakota: Mathematics](https://ai.page/roadmap/sd.md)

Goal: South Dakota academic standards: Mathematics, Grade 1

## 1. Number and Operation in Base Ten · Add and subtract within 100.

- [Adding numbers](https://ai.page/c/adding-numbers/index.md): Add up to four two-digit numbers using strategies based on place value and properties of operations
- [Addition and subtraction within 1000](https://ai.page/c/addition-and-subtraction-within-1000/index.md): Add and subtract within 1000 using concrete models, drawings, and strategies based on place value; understand composing and decomposing tens and hundreds
- [Adding within 100](https://ai.page/c/adding-within-100/index.md): Add within 100 using strategies based on place value, including adding a two-digit and one-digit number, and a two-digit and a multiple of 10

## 2. Number and Operation 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

## 3. Number and Operation in Base Ten · In the range of 0 - 120

- [Reading and writing numbers to 20](https://ai.page/c/reading-and-writing-numbers-to-20/index.md): Read and write numerals from 0 to 20
- [Reading and writing numbers to 100](https://ai.page/c/reading-and-writing-numbers-to-100/index.md): Read and write numerals from 0 to 100
- [Reading and writing numbers to 120](https://ai.page/c/reading-and-writing-numbers-to-120/index.md): Count to 120 starting at any number less than 120; read and write numerals to 120
- [Counting in 2s](https://ai.page/c/counting-in-2s/index.md): Count in multiples of 2, 5, and 10 (skip counting)

## Health: 0 of 100

Of its 8 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):

- Adding numbers has no explanation yet
- Addition and subtraction within 1000 has no explanation yet
- Adding within 100 comes before The two digits of a two-digit number, which it needs
- Adding within 100 has no explanation yet
- The two digits of a two-digit number has no explanation yet
- Reading and writing numbers to 20 has no explanation yet
- Reading and writing numbers to 100 has no explanation yet
- Reading and writing numbers to 120 has no explanation yet
- Counting in 2s has no explanation yet

Credit: The structure of South Dakota academic standards: Mathematics (http://doe.sd.gov/contentstandards/documents/SD-Math-Standard.pdf); 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.