In this video tutorial, determine the volume of a rectangular prism and assess learning with a quiz. [4:21]
Solve two challenging problems that apply properties of tangents to find the perimeter of a circumscribing shape.
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Practice comparing shapes based on their number of sides, number of corners, and side-lengths. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Sal combines shapes to make other shapes. [2:03]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Students learn about isometric drawings and practice sketching on triangle-dot paper the shapes they make using multiple simple cubes. They also learn how to use coded plans to envision objects and draw them on triangle-dot paper. A PowerPoint® presentation, worksheet and triangle-dot (isometric) paper printout are provided. This activity is part of a multi-activity series towards improving spatial visualization skills.
Blossom and Snappy help Robbie prepare for her camping trip. They learn about dehydrated food and the amount of water she will need for the four days and four nights she will be away. They also learn how to pick the right spot at the camp site, as well as how to pack for a camping trip.
Students work to count to 100 in this rigorous counting activity. Students create a shape out of their 100 objects for a creative twist. This lesson contains a detailed plan, video explanation, discussion questions based on ability level, and a printable recording sheet.
This challenging problem and brainteaser gives first graders an opportunity to compose and decompose squares.
Looks at a collection of 2D shapes and discusses how to identify them based on their properties. [4:19]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Explains what one-fourth means and what it looks like when a pie is cut into four equal pieces. [1:36]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Demonstrates how to break an irregular shape into three rectangles, find the individual areas, and then add them together. [3:36]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Demonstrates how to break an irregular shape into its parts, find the individual areas, and then add them together. [2:51]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Demonstrates how to find the area of a rectangular shape enclosed by another rectangle and with a third one inside it. [3:12]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Demonstrates how to plot a triangle on a Cartesian grid after a dilation and with a scale factor of 1/2. [2:26]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Students watch a video and then attempt practice problems on how to complete a whole picture with some missing parts.
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Students watch a video and attempt practice problems on counting two dimensional shapes in a complex composite figure.
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Students watch a video and attempt practice problems on how to dientify various two dimensional shapes within a composite figure.
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The video briefly shows and describes a triangle, circle, rectangle, and square and uses process of elimination to determine the given shape. The video is followed by a series of practice questions to assess student comprehension of the concept.
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Students watch a video and attempt practice problems on determining if there are straight lines in various two dimensional shapes.
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Students watch a video and attempt practice problems on identifying and naming three dimensional figures.
A free CK-12 account is required to view all materials.