
Khan Academy | Free Online Courses, Lessons & Practice
Created by experts, Khan Academy’s library of trusted, standards-aligned practice and lessons covers math K-12 through early college, grammar, science, history, AP®, SAT®, and more.
High school geometry - Khan Academy
Learn high school geometry—transformations, congruence, similarity, trigonometry, analytic geometry, and more (aligned with Common Core standards).
Math - Khan Academy
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 …
Geometry (all content) - Khan Academy
Geometry (all content) Unit 1: Lines Lines, line segments, and rays Measuring segments Parallel and perpendicular Points, lines, & planes Geometric definitions The golden ratio
Algebra 1 | Math | Khan Academy
The Algebra 1 course, often taught in the 9th grade, covers Linear equations, inequalities, functions, and graphs; Systems of equations and inequalities; Extension of the concept of a …
Algebra (all content) - Khan Academy
Learn algebra—variables, equations, functions, graphs, and more.
College Algebra | Math | Khan Academy
Unit 9: Relating algebra and geometry Unit mastery: 0% Distance and midpoints Standard equation of a circle Expanded equation of a circle
Get ready for Geometry - Math | Khan Academy
Get ready for high school geometry! Learn the skills that will set you up for success in congruence, similarity, and triangle trigonometry; analytic geometry; conic sections; and circles …
8th grade math - Khan Academy
Learn eighth grade math—functions, linear equations, geometric transformations, and more. (aligned with Common Core standards)
Calculus 1 | Math | Khan Academy
Up next for you: Course challenge Test your knowledge of the skills in this course. Start Course challenge