These sites include activities and lesson plans for measuring perimeter. The sites include interactive exercises, quizzes, games, and worksheets. There are eThemes resources on area of polygons and circumference.
These sites explain how to calculate the area of circles, triangles, rectangles, and parallelograms. Includes many practice problems and interactive games. There is also a link to blank grid paper so students can calculate the area of the shapes they draw.
Learn how to calculate circumference of a circle also known as a perimeter of a circle. Find out what radius and diameter are and learn how to find their values. There are links to eThemes resources on perimeter and pi number. Includes an animation, interactive exercises, quizzes, and worksheets.