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Khan Academy offers personalized learning, trusted content, and tools to empower teachers and students in math, science, arts, and more. Learn about Khanmigo, the AI tutor powered by GPT-4, and how to join Khan Academy as a learner, teacher, or partner.
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Learn for free about math, art, computer programming,...
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These materials enable personalized practice alongside the...
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Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.
These materials enable personalized practice alongside the new Illustrative Mathematics 7th grade curriculum. They were created by Khan Academy math experts and reviewed for curriculum alignment by experts at both Illustrative Mathematics and Khan Academy.
- Middle school biology - NGSS. Learn biology using videos, articles, and NGSS-aligned practice. Review the fundamentals of cell biology, organism growth and reproduction, photosynthesis, cellular respiration, ecology, genetics, evolution, and natural selection.
- Middle school Earth and space science - NGSS. Learn Earth and space science using videos, articles, and NGSS-aligned practice. Review the fundamentals of space systems, weather and climate, Earth's history and systems, and human impacts.
- Middle school physics - NGSS. Learn physics using videos, articles, and NGSS-aligned practice exercises. Review the fundamentals of motion, forces, energy, and waves.
- High school biology. Biology foundations: High school biology. Cells: High school biology. Energy and transport: High school biology. Reproduction and cell division: High school biology.
- Introduction to algebra. Overview and history of algebra: Introduction to algebra Introduction to variables: Introduction to algebra Substitution and evaluating expressions: Introduction to algebra Evaluating expressions word problems: Introduction to algebra Writing algebraic expressions introduction: Introduction to algebra Introduction to equivalent algebraic expressions: Introduction to algebra Dependent & independent variables: Introduction to algebra.
- Solving basic equations & inequalities (one variable, linear) Algebraic equations basics: Solving basic equations & inequalities (one variable, linear)Why we do the same thing to both sides of an equation: Solving basic equations & inequalities (one variable, linear)One-step addition & subtraction equations: Solving basic equations & inequalities (one variable, linear)One-step multiplication & division equations: Solving basic equations & inequalities (one variable, linear)Two-steps equations intro: Solving basic equations & inequalities (one variable, linear)Two-step equation word problems: Solving basic equations & inequalities (one variable, linear)Linear equations with variables on both sides: Solving basic equations & inequalities (one variable, linear)Linear equations with parentheses: Solving basic equations & inequalities (one variable, linear)
- Linear equations, functions, & graphs. Two-variable linear equations intro: Linear equations, functions, & graphs x-intercepts and y-intercepts: Linear equations, functions, & graphs Slope: Linear equations, functions, & graphs Horizontal & vertical lines: Linear equations, functions, & graphs Intro to slope-intercept form: Linear equations, functions, & graphs Graphing slope-intercept equations: Linear equations, functions, & graphs Writing slope-intercept equations: Linear equations, functions, & graphs.
- Sequences. Introduction to arithmetic sequences: Sequences Constructing arithmetic sequences: Sequences Introduction to geometric sequences: Sequences.
Khan Academy's Algebra 1 course is built to deliver a comprehensive, illuminating, engaging, and Common Core aligned experience! 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 function; Exponential models; and ...
Khan Academy's website aims to provide a free high-quality education to anyone, built on videos hosted on YouTube. The website is meant to be used as a supplement to the videos, because it includes other features such as progress tracking, practice exercises, [20] and teaching tools. [21]
