Lesson Description:
Proportional Pictures is a hands-on math project that helps students to discover the relationship between the perimeter and
area of two figures. Students draw a small figure, draw a similar figure three times larger, and then investigate changes
in the perimeter and area of the two figures.
Math Content:
Perimeter and Area of Similar Figures
Suggested Grade Level:
5th - 8th
Time Required:
About 2 class periods
Materials Needed:
Colored pencils/markers, string
Teacher Testimonial:
Since I created this lesson I have used it many times with 6th and 7th grade students. The students enjoy drawing their
original figure, transforming it into a similar figure using a 3 to 1 scale, and then comparing the perimeter and area of
the two figures. The finished projects make a great display for the classroom in addition to teaching important math
concepts!
Proportional Pictures includes:
- 2 Proportional Pictures drawing grids
- 1 Proportional Pictures math worksheet
- 1 Proportional Pictures math worksheet answer key
- 1 Proportional Pictures Teacher Tips page
Enjoy your lesson!!
