This lesson explains the concepts of area and perimeter of complex figures. It helps student in learning further about estimating the area and perimeter of irregular shapes. Click on the link "Area and Perimeter of Complex Figures" to access this lesson. The next lesson in the unit on "Measurement" is "Functions and Graphs in Linear Relationships" and can be accessed by clicking here. If you want to see the various lessons included in this unit, click here.

This lesson is a part of a comprehensive Grade 4 Math course developed by Winpossible, whose ChalkTalk^TM technology (patent pending) replicates the classroom experience while using engaging animated characters. The course matches the Grade 4 correlations of most states in the US. The basic version of the course, which includes lessons and interactive question answers, is available for free on Curriki and can be accessed here.

You can also enroll your students in a paid version of this course which allows you to track the progress and quiz scores of each student on an individual basis, and gives your students access to several additional features such as an interactive question bank, their personal progress tracker, and end-of-lesson quizzes. In order to buy student licenses in the paid version of this Grade 4 Math course, click here.