This Basic geometry and measurement course is a refresher of length, area, perimeter, volume, angle measure, and transformations of 2D and 3D figures. If you are learning the content for …

This Basic geometry and measurement course is a refresher of length, area, perimeter, volume, angle measure, and transformations of 2D and 3D figures. If you are learning the content for …

Learn pre-algebra—all of the basic arithmetic and geometry skills needed for algebra.

Learn high school geometry—transformations, congruence, similarity, trigonometry, analytic geometry, and more (aligned with Common Core standards).

Classify shapes and solve problems using what we know of the properties of shapes.

Geometry (all content) Unit 1: Lines Lines, line segments, and rays Measuring segments Parallel and perpendicular Points, lines, & planes Geometric definitions The golden ratio

Khan Academy's Algebra 1 course is built to deliver a comprehensive, illuminating, engaging, and Common Core aligned experience! **Teaching this course? Check out our [teacher resources] …

Algebra basics 8 units · 112 skills Unit 1 Foundations Unit 2 Algebraic expressions Unit 3 Linear equations and inequalities

Learn the basics of algebra—focused on common mathematical relationships, such as linear relationships.

Parts of plane figures Learn Terms & labels in geometry Lines, line segments, & rays Lines, line segments, and rays review