Math Planet
Math Planet: Pre Algebra: Calculating the Area and the Perimeter
Gain an understanding of how to calculate the area and the perimeter by viewing examples and a video lesson. [1:13]
PBS
Pbs: The Lowdown: Defining and Calculating Percents
Explore methods for calculating and comparing discounts in this video from KQED. In the accompanying classroom activity, students develop different strategies for calculating and comparing discounts, including percent off a price,...
Shodor Education Foundation
Shodor Interactivate: Lesson: Area
This lesson plan helps students explore the mathematical concept of area and features resource links to further learning. CCSS.Math.Content.3.MD.C.7.a Find the area of a rectangle with whole-number side lengths by tiling it
Scholastic
Scholastic Lesson Plan: New Way to Measure Area
This article describes a new approach to teaching children more than just memorizing a formula to find area and hope they don't confuse it with perimeter. This approach involves a project with real life situations....
Homeschool Math
Homeschool Math: How to Calculate Percentages
Learn how to calculate percentages in this easy lesson.
Wyzant
Wyzant: Calculators Index
Online calculators will help you solve equations, factor, complete the square, simplify, graph, and substitute.
PBS
Pbs Teachers: Math Space Odyssey: How Long Is a Light Year?
This lesson helps pupils to demonstrate the ability to use a light year as a standard of measurement to calculate time and distance from the earth. They will also solve problems based on light years.
Hopelink
Hopelink: Teaching Percentages
Students can brush up on percentage skills with this lesson and calculate percentages using the "Percent Tricks method." For students to successfully use this method, they must have the ability to multiply and divide whole numbers.
Wyzant
Wyzant: Solve by Factoring
This resource examines how to solve equations by factoring and provides step-by-step solutions. Includes links to an equation calculator and practice problems.
CK-12 Foundation
Ck 12: Trigonometry: Amplitude, Period, and Frequency
[Free Registration/Login may be required to access all resource tools.] Combine calculations for amplitude and period on a sine or cosine graph.
Utah Education Network
Uen: Equivalent Expressions
This multi-segment lesson plan uses games and calculators to explore the concept of equivalent expressions. Students work together using inverse operations to isolate variables in algebraic equations. It also provides attachments for...
Wyzant
Wyzant: Factoring Completely
The resource examines the algebra topic of solving equations. Students view the tutorial to review how to solve by factoring. The lesson consists of the greatest common factor, difference between two squares, and trinomial techniques. An...