Annenberg Foundation
Geometry 3D Shapes: Surface Area and Volume
Whether you wrap it or fill it, you're using geometric concepts. Classmates use an interactive approach to learn how to find volume and surface area of cylinders and prisms in the second lesson in a five-part series. The online lesson...
Annenberg Foundation
Geometry 3D Shapes: Platonic Solids
From polyhedrons to platonic solids, here is a lesson that will have your classes talking! As an introduction to platonic solids, scholars cut and fold nets to create the three-dimensional solids. They use an interactive component to...
Other
Maths Zone
A huge collection of math online games for all ages. Access different types of math such as: use and apply, count and understand, addition and subtraction number facts, multiplication and division number facts, shapes, measuring, and...
National Council of Teachers of Mathematics
The Math Forum: Seventh Grade Mathematics: Cycles
Teachers can use this resource for creating interesting lessons about time and time measurement. There are articles about leap year, converting time, as well as other links for further research. An interdisciplinary project about an...
PBS
Pbs Learning Media: Calculating Rectangular Area
In this video segment from Cyberchase, the CyberSquad measures Judge Trudy's land claim by using tarps, fence posts and a grid made with rope.
Virtual Nerd
Virtual Nerd: How Do You Solve a Word Problem Using Unit Rates?
Word problems allow you to see the real world uses of math! This tutorial shows you how to take a rate and convert it to a unit rate. Then, you can use that unit rate to calculate your answer. Watch this tutorial to learn all about it!
National Council of Teachers of Mathematics
The Math Forum: Drexel Math Forum: Distance to an Object
Dr. Math offers a way to calculate the altitude of a triangle using only the lengths of the sides of the triangle. He briefly explains how this was used by the Egyptians long ago.
Environduck
Enviroduck: Math and Chemistry Behind Co2 Per Gallon of Gas Calculations
Learn how CO2 per gallon of gas is calculated using science, math, and chemistry.
Discovering Egypt
Discovering Egypt: Egyptian Mathematics
A brief explanation of the numbering system of the ancient Egyptians, with great drawings and sample problems. Use this resource to introduce yourself to the symbols ancient Egyptians used in mathematics. There are some activities to...
PBS
Pbs Learning Media: Cooking Contest
In this Cyberchase video segment, Matt uses subtraction to help Digit figure out how much time he has left in a cooking contest with Hacker.