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Geometry
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35258 min35-part Geometry course146 CQ
Having trouble in geometry class? Reviewing for the SATs? This course from Math Fortress explains the principles of geometry, from segments, intersections, and degrees to angles and congruence.
with Math FortressHaving trouble in geometry class? Reviewing for the SATs? This course from Math Fortress explains the principles of geometry, from segments, intersections, and degrees to angles and congruence.
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6 minGeometry lesson4 CQ
The math problem covered in this lesson appeared in an MIT admission test in the year 1869, and is a good test of geometry concepts. Give it a try!
with Sanjay NoronhaThe math problem covered in this lesson appeared in an MIT admission test in the year 1869, and is a good test of geometry concepts. Give it a try!
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3 minFREEGeometry Nerdy CurioFree2 CQ
As we kick off a new year, let us ponder our we've "shaped" our world. A Nerdy Curio all about flat surfaces, stability, and the power of three.
As we kick off a new year, let us ponder our we've "shaped" our world. A Nerdy Curio all about flat surfaces, stability, and the power of three.
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2 minFREEGeometry lessonFree2 CQ
In this lesson, a young learner helps kids understand a foundational mathematical concept—how to solve for the hypotenuse of a right angle triangle!
with Sanjay NoronhaIn this lesson, a young learner helps kids understand a foundational mathematical concept—how to solve for the hypotenuse of a right angle triangle!
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19 minFREEAlgebra lessonFree10 CQ
The Pythagorean theorem is one of the most important ideas in geometry. Learn to use Pythagoras’ theorem to solve triangles, diagonals, and more!
with Me vs MathsThe Pythagorean theorem is one of the most important ideas in geometry. Learn to use Pythagoras’ theorem to solve triangles, diagonals, and more!
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5 minFREEGeometry lessonFree3 CQ
Want to know how to find the shortest distance from a point to a line? Math teacher Al Richards demonstrates how using analytic geometry and trigonometry.
with Al RichardsWant to know how to find the shortest distance from a point to a line? Math teacher Al Richards demonstrates how using analytic geometry and trigonometry.
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9 minFREEAlgebra lessonFree5 CQ
The Pythagorean theorem is an essential mathematical equation used in the study of algebra and geometry. Learn how to use it to solve for different variables.
with Master MathThe Pythagorean theorem is an essential mathematical equation used in the study of algebra and geometry. Learn how to use it to solve for different variables.
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325 min3-part Biology course14 CQ
Preparing for the AP Biology exam? In this three-part course, get clear explanations of Darwinian evolution by natural selection, modern evolutionary theory, and the history of life on Earth.
with Bleier BiologyPreparing for the AP Biology exam? In this three-part course, get clear explanations of Darwinian evolution by natural selection, modern evolutionary theory, and the history of life on Earth.
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7107 min7-part iOS Development course57 CQ
Looking for a programming language that can do some heavy-lifting but doesn't take years to master? When programming for iOS, OS X, and watchOS, Apple's programming language Swift is the best choice!
with Sanjay NoronhaLooking for a programming language that can do some heavy-lifting but doesn't take years to master? When programming for iOS, OS X, and watchOS, Apple's programming language Swift is the best choice!
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11163 min11-part iPhones + iPads course88 CQ
Want to get the most out of your iPhone? This course from tech expert Todd Olthoff is the perfect guide, for everything from basic installation to built-in app features.
with Todd OlthoffWant to get the most out of your iPhone? This course from tech expert Todd Olthoff is the perfect guide, for everything from basic installation to built-in app features.
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1270 min12-part Science course41 CQ
If you're looking for fun activities for kids that are equal parts science and craft, you'll love this course with lessons covering everything from homemade oobleck to egghead gardens.
with Sophie's WorldIf you're looking for fun activities for kids that are equal parts science and craft, you'll love this course with lessons covering everything from homemade oobleck to egghead gardens.
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10133 min10-part Calculus course72 CQ
Worried about taking a college-level or AP Calculus class? Fret not! In this course, review simple examples and graphs to explore the main concepts of both differential and integral calculus.
with Math is a SportWorried about taking a college-level or AP Calculus class? Fret not! In this course, review simple examples and graphs to explore the main concepts of both differential and integral calculus.
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40208 min40-part Chemistry course125 CQ
Professor Dave covers the fundamentals of chemistry with short and simple lessons on using scientific notation, balancing chemical equations, understanding atomic theory, and more.
Professor Dave covers the fundamentals of chemistry with short and simple lessons on using scientific notation, balancing chemical equations, understanding atomic theory, and more.
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971 min9-part Chemistry course39 CQ
Explore the basic properties of gases and learn how gas molecules move, are measured, and react to changes in pressure, volume, and temperature with easy-to-understand illustrations and examples.
Explore the basic properties of gases and learn how gas molecules move, are measured, and react to changes in pressure, volume, and temperature with easy-to-understand illustrations and examples.
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1172 min11-part Chemistry course43 CQ
This course on nuclear chemistry and radioactive decay from Prof. Amanda Holton discusses the differences among alpha, beta, and gamma decay; nuclear fusion and fission; and nuclear kinetics.
with Amanda HoltonThis course on nuclear chemistry and radioactive decay from Prof. Amanda Holton discusses the differences among alpha, beta, and gamma decay; nuclear fusion and fission; and nuclear kinetics.
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46342 min46-part Chemistry course196 CQ
Organic chemistry can be complex and difficult to learn. Professor Dave makes learning organic chemistry easy with this comprehensive course that explains the basics in a structured and linear way!
Organic chemistry can be complex and difficult to learn. Professor Dave makes learning organic chemistry easy with this comprehensive course that explains the basics in a structured and linear way!
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520 min5-part Chemistry course13 CQ
Are you a chemistry student delving into quantum mechanics? In this course, review historical, mathematical, and conceptual topics of quantum mechanics, and experiments that led to key findings.
with Amanda HoltonAre you a chemistry student delving into quantum mechanics? In this course, review historical, mathematical, and conceptual topics of quantum mechanics, and experiments that led to key findings.