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Khan Academy

Khan Academy: Advanced Reflections

For Students 9th - 10th Standards
Find the reflection that maps a given figure to another and draw the image of a reflection. The lines of reflection in this exercise have a wide range of slopes. Students receive immediate feedback and have the opportunity to try...
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Khan Academy

Khan Academy: Rotate Shapes: Center Not (0,0)

For Students 9th - 10th Standards
Given a figure on the coordinate plane and the definition of a rotation about an arbitrary point, draw the image of that rotation. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video,...
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Khan Academy

Khan Academy: Rotate Shapes

For Students 9th - 10th Standards
Given a figure on the coordinate plane and the definition of a rotation about the origin, draw the image of that rotation. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or...
Unknown Type
Khan Academy

Khan Academy: Reflect Shapes

For Students 9th - 10th Standards
Given a figure and a definition of a reflection, draw the image. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
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Khan Academy

Khan Academy: Congruence and Transformations

For Students 9th - 10th Standards
Given a pair of figures in the coordinate plane, try to map one onto the other and determine whether they are congruent. Includes examples of glide reflections. Students receive immediate feedback and have the opportunity to try...
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Khan Academy

Khan Academy: Solid Geometry Word Problems

For Students 9th - 10th Standards
Solve problems concerning real-world situations with the volumes of cones, cylinders, and spheres. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Khan Academy

Khan Academy: Rotate 2 D Shapes in 3 D

For Students 9th - 10th Standards
Practice your 3D visualization skills by rotating 2D shapes. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Khan Academy

Khan Academy: Parallel and Perpendicular Lines From Graph

For Students 9th - 10th Standards
Given points that two lines go through or the graph of each line, classify the lines as parallel, perpendicular, or neither. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...
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Khan Academy

Khan Academy: Parallel and Perpendicular Lines From Equation

For Students 9th - 10th Standards
Use your knowledge about the slopes of parallel and perpendicular lines to solve some problems. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Khan Academy

Khan Academy: Solve Triangles Using the Law of Sines

For Students 9th - 10th Standards
Solve missing triangle measures using the law of sines. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Khan Academy

Khan Academy: General Triangle Word Problems

For Students 9th - 10th Standards
Solve word problems that involve general triangles using trigonometry. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Khan Academy

Khan Academy: Solve Triangles Using the Law of Cosines

For Students 9th - 10th Standards
Solve missing triangle measures using the law of cosines. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Khan Academy

Khan Academy: Cross Sections of 3 D Objects

For Students 9th - 10th Standards
Practice your knowledge of all possible cross-sections of common 3D objects. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Khan Academy

Khan Academy: Rational vs. Irrational Expressions

For Students 9th - 10th Standards
Determine whether an expression that is the combination of two rational/irrational numbers is rational or irrational itself. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...
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Khan Academy

Khan Academy: Adding Three Numbers

For Students Pre-K - 1st Standards
In this exercise, students practice addition and subtraction within 10. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
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Khan Academy

Khan Academy: Dilations: Scale Factor

For Students 9th - 10th Standards
Find both the center and the scale factor of a dilation that maps a given figure to another one. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Khan Academy

Khan Academy: Perform Dilations

For Students 9th - 10th Standards
Use the interactive transformation tool to perform dilations for four problems. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Khan Academy

Khan Academy: Similarity and Transformations

For Students 9th - 10th Standards
Given two polygons, try to map one onto the other using angle-preserving transformations, and determine whether they are similar. Transformations are done in "intuitive mode." Students receive immediate feedback and have the opportunity...
Unit Plan
Khan Academy

Khan Academy: Subtracting 1s or 10s (No Regrouping)

For Students 1st - 3rd Standards
Practice solving problems like 67-5 and 67-50. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a tutorial video, or receive hints.
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Khan Academy

Khan Academy: Quiz: Inscribed Quadrilaterals

For Students 9th - 10th Standards
Use the fact that opposite angles in an inscribed quadrilateral are supplementary to solve a few problems. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Khan Academy

Khan Academy: Divide Line Segments

For Students 9th - 10th Standards
Figure out the coordinates of a point between two other points that give a certain ratio. For example, find a point C so that it is two-thirds of the way between point A and B. Students receive immediate feedback and have the opportunity...
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Khan Academy

Khan Academy: Midpoint Formula

For Students 9th - 10th Standards
Find the midpoint of a segment on the coordinate plane, or find the endpoint of a segment given one point and the midpoint. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...
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Khan Academy

Khan Academy: Area and Perimeter on the Coordinate Plane

For Students 9th - 10th Standards
Find the area or perimeter of shapes like triangles, rectangles, parallelograms, and hexagons on the coordinate plane. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Khan Academy

Khan Academy: Solve for an Angle in Right Triangles

For Students 9th - 10th Standards
Given two sides in a right triangle, find one of the acute angles using trigonometry. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.