# Secondary Stage (Classes 9–10): Mathematics

A course roadmap (maths). Language: en. By @si. Licence: CC BY-SA 4.0. 0 of 7 concepts ready. In the app: https://ai.page/roadmap/in-ncf-math-secondary-stage-classes-9-10

Part of: [NCF-SE 2023: Mathematics](https://ai.page/roadmap/in-ncf-math.md)

Goal: National Curriculum Framework for School Education 2023 (NCERT): Mathematics, curricular goals and competencies, Secondary Stage (Classes 9–10)

## 1. Secondary Stage (Classes 9–10)

- [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
- [Coordinates (age 12+)](https://ai.page/c/coordinates-age-12/index.md): Understand similarity as a relationship where one shape is an enlargement of another; construct similar shapes by enlargement with a given scale factor and centre, with and without coordinate grids
- [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
- [Understanding angles (age 12+)](https://ai.page/c/understanding-angles-age-12/index.md): Use ruler and compasses to perform standard constructions: perpendicular bisector of a line segment, perpendicular to a line from or at a given point, and bisecting an angle
- [Estimating answers (age 13+)](https://ai.page/c/estimating-answers-age-13/index.md): Use graphs of linear and quadratic functions to estimate output values for given inputs, find approximate solutions to equations, and interpret graphical information in real-world contexts
- [3-D shapes (age 11+)](https://ai.page/c/3-d-shapes-age-11/index.md): Use the properties of faces, surfaces, edges, and vertices of 3-D shapes (cubes, cuboids, prisms, cylinders, pyramids, cones, and spheres) to solve problems, including visualising cross-sections

## Health: 0 of 100

Of its 7 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
- Coordinates (age 12+) has no explanation yet
- Angles in triangles (age 11+) has no explanation yet
- Circles: Circumference & Area has no explanation yet
- Understanding angles (age 12+) has no explanation yet
- Estimating answers (age 13+) has no explanation yet
- 3-D shapes (age 11+) has no explanation yet

Credit: The structure of National Curriculum Framework for School Education 2023 (NCERT): Mathematics, curricular goals and competencies (https://ncert.nic.in/pdf/NCFSE-2023-August_2023.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.