# Grade 2: Mathematics

A course roadmap (maths). Language: en. By @si. Licence: CC BY-SA 4.0. 0 of 9 concepts ready. In the app: https://ai.page/roadmap/va-grade-2

Part of: [Virginia SOL: Mathematics](https://ai.page/roadmap/va.md)

Goal: Virginia Standards of Learning: Mathematics, Grade 2

## 1. Probability and Statistics · Analyze data represented in pictographs and bar graphs and communicate results:

- [Picture & Bar Graphs](https://ai.page/c/picture-and-bar-graphs/index.md): Draw a picture graph and a bar graph (with single-unit scale) to represent a data set with up to four categories; solve put-together, take-apart, and compare problems using information presented in a bar graph
- [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. Measurement and Geometry · Use U.S. Customary units to estimate, measure, and compare the two for reasonableness:

- [Choosing measurement units](https://ai.page/c/choosing-measurement-units/index.md): Choose and use appropriate standard units to measure length (m/cm), mass (kg/g), temperature (°C), and capacity (litres/ml) to the nearest appropriate unit
- [Calculating with measurements](https://ai.page/c/calculating-with-measurements/index.md): Measure, compare, add, and subtract lengths (m/cm/mm), mass (kg/g), and volume/capacity (l/ml) using standard units
- [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. Measurement and Geometry · Explain the purpose of various measurement tools and how to use them appropriately by:

- [Measuring length (age 7+)](https://ai.page/c/measuring-length-age-7/index.md): Measure the length of an object by selecting and using appropriate tools such as rulers, yardsticks, metre sticks, and measuring tapes

## 4. Number and Number Sense · Given a context, represent, name, and write fractional parts of a whole for halves, fourths, eighths, thirds, and sixths using:

- [Understanding fractions](https://ai.page/c/understanding-fractions-2/index.md): Move fluently between real-world situations, diagrams, and symbolic equations involving three-digit numbers and fractions, explaining what each part represents
- [Fractions of amounts](https://ai.page/c/fractions-of-amounts/index.md): Recognise, find, name, and write fractions 1/3, 1/4, 2/4, and 3/4 of a length, shape, set of objects, or quantity
- [Fractions on a number line](https://ai.page/c/fractions-on-a-number-line/index.md): Recognise and use fractions as numbers: place unit fractions and non-unit fractions with small denominators on a number line

## Health: 0 of 100

Of its 9 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):

- Picture & Bar Graphs has no explanation yet
- Pictograms and tally charts has no explanation yet
- Choosing measurement units has no explanation yet
- Calculating with measurements has no explanation yet
- Measuring with different units comes before Measuring length (age 7+), which it needs
- Measuring with different units has no explanation yet
- Measuring length (age 7+) has no explanation yet
- Understanding fractions has no explanation yet
- Fractions of amounts has no explanation yet
- Fractions on a number line has no explanation yet

Credit: The structure of Virginia Standards of Learning: Mathematics (https://www.doe.virginia.gov/home/showpublisheddocument/48908/638325354847170000); 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.