# Grade 8: 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/ks-grade-8

Part of: [Kansas: Mathematics](https://ai.page/roadmap/ks.md)

Goal: Kansas academic standards: Mathematics, Grade 8

## 1. Expressions and Equations · Fluently (efficiently, accurately, and flexibly) solve one-step, two-step, and multi-step linear equations and inequalities in one variable, including situations with the s

- [Solving Linear Equations](https://ai.page/c/solving-linear-equations/index.md): Use algebraic methods to solve linear equations in one variable, including equations that require rearrangement, expanding brackets, and collecting terms on both sides; solve equations with rational number coefficients

## 2. Geometry · Investigate the relationship between the formulas of three dimensional geometric shapes;

- [Angles in triangles (age 11+)](https://ai.page/c/angles-in-triangles-age-11/index.md): Derive and apply formulae for the area of triangles, parallelograms, and trapezia, and for the volume of cuboids and other prisms (including cylinders), connecting each formula to its geometric reasoning
- [Circles: Circumference & Area](https://ai.page/c/circles-circumference-and-area/index.md): Calculate the circumference and area of circles using the formulae C = πd (or 2πr) and A = πr², and solve problems involving perimeters and areas of composite shapes that include circular parts

## 3. Geometry · Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint, and understand concepts of angle measurement:

- [Understanding angles (age 11+)](https://ai.page/c/understanding-angles-age-11/index.md): Apply the properties of angles at a point (360°), on a straight line (180°), and vertically opposite angles to find unknown angles in multi-step problems
- [Measuring angles (age 11+)](https://ai.page/c/measuring-angles-age-11/index.md): Draw and measure line segments and angles accurately using ruler and protractor, and interpret scale drawings to extract real measurements

## 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):

- Solving Linear Equations has no explanation yet
- Angles in triangles (age 11+) has no explanation yet
- Circles: Circumference & Area has no explanation yet
- Understanding angles (age 11+) has no explanation yet
- Measuring angles (age 11+) has no explanation yet

Credit: The structure of Kansas academic standards: Mathematics (http://community.ksde.org/LinkClick.aspx?fileticket=1_TgVIJPfKM%3d&tabid=5276&mid=15449); 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.