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...
Wyzant
Wyzant: Calculators Index
Online calculators will help you solve equations, factor, complete the square, simplify, graph, and substitute.
Smithsonian Institution
Smithsonian Learning Lab: Prehistoric Climate Change and Why It Matters Today
Introduce students to environmental issues by studying a time of rapid global warming that occurred 50 million years ago. Lessons, video segments and interactive activities will engage students as they learn about average annual...
PBS
Pbs Learning Media: A Tip on Tipping
This TV 411 segment features a lesson from Question Man on how to informally calculate 15% tips at restaurants.
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...
Other
Algebra Lab: The Multiplication Rule of Probability
An explanation with examples of how to calculate probabilities of two dependent or independent events by multiplying their probabilities. Practice problems are provided along with their explanations.
US Energy Information Administration
U.s. Eia Energy Kids
This comprehensive lesson teaches all about energy, including the different forms, the periodic table, history of human energy use and production, and energy units. It contains an interactive energy calculator, games and activities, and...
Teachnology
Teachnology: Spreadsheet Guide for Teachers
A Spreadsheet is a wonderful tool with applications well beyond simple calculations. This site provides a collection of lesson plans, tutorials and worksheets that help bring spreadsheets into the classroom.