CK-12 Foundation
Three Dimensions in Two Dimensions: Lesson
Slice up solids. A portion of a geometry playlist introduces two conventional ways to visualize 3-D figures in 2-D. The resource defines cross-sections and nets and provides examples of both.
Mathematics Assessment Project
Modeling Motion: Rolling Cups
Connect the size of a rolling cup to the size of circle it makes. Pupils view videos of cups of different sizes rolling in a circle. Using the videos and additional data, they attempt to determine a relationship between cup...
TED-Ed
Why Are Manhole Covers Round?
Discover the peculiar geometric property of the curve of constant width, the Reuleaux triangle, and their intriguing connection to manhole covers with yet another fascinating TED-Ed video.
National Science Foundation
Science of NFL Football: Geometric Shapes
Ever wonder why a football has such an unsual shape? Find out with this video from the Science of Football colelction that examines how the geometric properties of a football make it perfectly suited for being thrown accurately over...
HeyMath!
Volume of Pyramid
Go beyond the basic formulas and uncover the surface area and volume of 3-D shapes with this comprehensive and organized worksheet packet. The problems include the basic formula computations while also challenging your learners to derive...
Sophia Learning
Sophia: Volume of Composite Figures
This lesson will present how to apply the volume formulas of prisms, cylinders, pyramids, cones, spheres, and hemispheres to find the volume of composite figures. Student watch a video tutorial and then can take an online quiz.
Sophia Learning
Sophia: Volume of Composite Figures
This lesson will present how to apply the volume formulas of prisms, cylinders, pyramids, cones, spheres, and hemispheres to find the volume of composite figures. Student can watch a video tutorial and then take an online quiz.
Massachusetts Institute of Technology
Mit: Science Out Loud: Trippy Shapes
In school, we learn about shapes with sides and edges - but there are weird shapes out there (beyond our 3 dimensions) that defy our normal idea of geometry. QuanQuan and Jenny explain, knit, and 3D print their way through trippy shapes!...
Khan Academy
Khan Academy: Slicing a Rectangular Pyramid
Demonstrates what types of shapes one can get in a cross-section when a rectangular pyramid is sliced. [3:29]
Virtual Nerd
Virtual Nerd: What Is a Net?
A net is a two-dimensional version of a three-dimensional solid. Watch this tutorial for an introduction to nets. [5:25]
Khan Academy
Khan Academy: Conceptual Understanding of Flux in Three Dimensions
Conceptual understanding of flux across a two-dimensional surface
Sophia Learning
Sophia: Different Kinds of Solids
Geometric solids are explored in this video lesson. The tutorial defines and provides examples of six popular solids. Students can check their understanding with an assessment. [9:03]
Virtual Nerd
Virtual Nerd: What Is a Cylinder?
View this tutorial to learn what defines a cylinder and what the different parts are. [1:47]
Imagine Learning Classroom
Learn Zillion: Visualize Cross Sections of Pyramids
In this lesson, you will learn how to visualize the 2D cross-sections of pyramids by determining the number of faces intersected by a plane. [3:53]
Virtual Nerd
Virtual Nerd: How Do You Draw a Side View of a Three Dimensional Shape?
Watch this tutorial to see what a 3D object looks like from the side. [5:13]
Khan Academy
Khan Academy: Ways to Cross Section a Cube
Explores the variety of two-dimensional cross-sections that can be obtained by slicing a cube. [7:23]
Khan Academy
Khan Academy: Ways to Cross Section a Cube
Learn about all the different ways we can obtain cross-sections of a cube.
Khan Academy
Khan Academy: Features of a Circle From Its Standard Equation
Sal finds the center and the radius of the circle.
Sophia Learning
Sophia: Types of Solids: Lesson 3
This lesson will define the terms prism, bases, pyramid, cylinder, and cone. It is 3 of 4 in the series titled "Types of Solids."
Sophia Learning
Sophia: Drawing Awesome Three Dimensional Objects
This video lesson demonstrates how to draw a cube in a three-dimensional coordinate system.
Sophia Learning
Sophia: Drawing Three Dimensional Objects
This video tutorial investigates how to draw three-dimensional figures in a three-dimensional space. [5:44]
Sophia Learning
Sophia: Drawing Three Dimensional Objects
This video tutorial demonstrates how to draw three-dimensional figures such as a cube and triangular prism. [4:28]