Beacon Learning Center
Beacon Learning Center: Fence Me In!
Students can practice calculating the perimeter of rectangles in this interactive web lesson.
AAA Math
Aaa Math: Perimeter of a Rectangle
Students are taught how to calculate the perimeter of a parallelogram. Extra practice drill problems are also included.
ClassFlow
Class Flow: Area Perimeter
[Free Registration/Login Required] This flipchart demonstrates how to calculate perimeters and areas of simple compound shapes that can be split into rectangles.
AAA Math
Aaa Math: Perimeter of a Square
Students are taught how to calculate the perimeter of a square. Extra practice drill problems are also included.
University of Cambridge
University of Cambridge: Nrich: Fencing
On this one page website sharpen your logic, area, perimeter, and pattern recognition skills while working on this unique fencing challenge. The solution is available to double check your solution.
Shodor Education Foundation
Shodor Interactivate: Perimeter Explorer
Use this applet to find the perimeter of a variety of shapes with the same or different areas.
Khan Academy
Khan Academy: Find Perimeter by Counting Unit Squares
Calculate the perimeter of a rectangle from its side lengths. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.