# Grade 2: Mathematics

A course roadmap (maths). Language: en. By @si. Licence: CC BY-SA 4.0. 0 of 5 concepts ready. In the app: https://ai.page/roadmap/ky-grade-2

Part of: [Kentucky: Mathematics](https://ai.page/roadmap/ky.md)

Goal: Kentucky academic standards: Mathematics, Grade 2

## 1. Measurement and Data · Investigate questions involving measurements.

- [Measuring & Plotting Lengths](https://ai.page/c/measuring-and-plotting-lengths/index.md): Generate measurement data by measuring lengths to the nearest whole unit and display the data on a line plot
- [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

## 2. Numbers and Operations in Base Ten · Add and subtract within 1000.

- [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

## 3. Numbers and Operations in Base Ten · Understand that the three digits of a three-digit number represent amounts of hundreds, tens and ones.

- [A Hundred Is Ten Tens](https://ai.page/c/a-hundred-is-ten-tens/index.md): Understand that 100 can be thought of as a bundle of ten tens — called a 'hundred'
- [The three digits of a three-digit number](https://ai.page/c/the-three-digits-of-a-three-digit-number/index.md): Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones

## Health: 0 of 100

Of its 5 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):

- Measuring & Plotting Lengths has no explanation yet
- Measuring with different units has no explanation yet
- Addition and subtraction within 1000 comes before The three digits of a three-digit number, which it needs
- Addition and subtraction within 1000 has no explanation yet
- A Hundred Is Ten Tens has no explanation yet
- The three digits of a three-digit number has no explanation yet

Credit: The structure of Kentucky academic standards: Mathematics (https://education.ky.gov/curriculum/standards/kyacadstand/Documents/Kentucky_Academic_Standards_Mathematics.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.