# Grade 1: Mathematics

A course roadmap (maths). Language: en. By @si. Licence: CC BY-SA 4.0. 0 of 16 concepts ready. In the app: https://ai.page/roadmap/mo-grade-1

Part of: [Missouri: Mathematics](https://ai.page/roadmap/mo.md)

Goal: Missouri academic standards: Mathematics, Grade 1

## 1. Data and Statistics · Represent and interpret data.

- [Pictograms and tally charts](https://ai.page/c/pictograms-and-tally-charts/index.md): Interpret and construct simple pictograms, tally charts, block diagrams, and simple tables

## 2. Geometry and Measurement · Measure lengths in non-standard units.

- [Measuring length](https://ai.page/c/measuring-length/index.md): Order three objects by length and compare the lengths of two objects indirectly using a third object
- [Comparing lengths by measuring](https://ai.page/c/comparing-lengths-by-measuring/index.md): Measure to determine how much longer one object is than another, expressing the length difference in terms of a standard length unit
- [Measuring with different units](https://ai.page/c/measuring-with-different-units/index.md): Measure the length of an object using two different length units and describe how the measurements relate to the size of the unit chosen

## 3. Geometry and Measurement · Reason with shapes and their attributes.

- [Halves & Quarters of Shapes](https://ai.page/c/halves-and-quarters-of-shapes/index.md): Partition circles and rectangles into two and four equal shares and describe them using the words halves, fourths, and quarters
- [Composing Shapes](https://ai.page/c/composing-shapes/index.md): Compose two-dimensional shapes (rectangles, squares, trapezoids, triangles, half-circles, quarter-circles) to create composite shapes, and compose new shapes from the composite shape
- [Angles in triangles (age 6+)](https://ai.page/c/angles-in-triangles-age-6/index.md): Distinguish defining attributes of shapes (e.g. triangles are closed and three-sided) from non-defining attributes (e.g. colour, orientation, overall size)

## 4. Number Sense and Operations in Base Ten · Use place value understanding to add and subtract.

- [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
- [Subtracting multiples of 10](https://ai.page/c/subtracting-multiples-of-10/index.md): Subtract multiples of 10 (10–90) from multiples of 10 using place value strategies

## 5. Number Sense and Operations in Base Ten · Understand place value of two-digit numbers.

- [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
- [Comparing and ordering numbers](https://ai.page/c/comparing-and-ordering-numbers/index.md): Compare and order two-digit numbers using the symbols >, =, and <, based on place value understanding

## 6. Relationships and Algebraic Thinking · Add and subtract within 20.

- [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

## 7. Relationships and Algebraic Thinking · Represent and solve problems involving addition and subtraction.

- [What the equals sign means](https://ai.page/c/what-the-equals-sign-means/index.md): Understand the meaning of the equal sign as 'is the same as' and determine if equations are true or false
- [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
- [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 16 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):

- Pictograms and tally charts has no explanation yet
- Measuring length has no explanation yet
- Comparing lengths by measuring has no explanation yet
- Measuring with different units has no explanation yet
- Halves & Quarters of Shapes has no explanation yet
- Composing Shapes has no explanation yet
- Angles in triangles (age 6+) has no explanation yet
- Adding numbers has no explanation yet
- Subtracting multiples of 10 has no explanation yet
- The two digits of a two-digit number has no explanation yet
- Comparing and ordering numbers 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
- What the equals sign means has no explanation yet
- Addition and subtraction within 20 has no explanation yet
- Addition and subtraction word problems has no explanation yet

Credit: The structure of Missouri academic standards: Mathematics (https://sites.google.com/view/priority-standards-mo-dese/home/mathematics?authuser=0); 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.
