The National Science Digital Library Logo

This resource is part of the
National Science Digital Library.


This resource is not discoverable in the library. If the resource was recently submitted, it may require some time before it becomes discoverable through this search service.
Resource Title:Constant dimensions
Description:This complete lesson plan requires students to measure the length and width of a rectangle using both standard and non-standard units of measure, such as pennies, beads, etc. As students graph the ordered pairs, they discover that the ratio of length to width of a rectangle is constant, in spite of the units. This leads to the definition of a linear function and to the rule that relates the dimensions of this rectangle. An activity sheet and questions for class discussion are included.