Activity Overview
This activity is intended to extend the concept of fraction to unit squares, where the unit fraction fraction is a portion of the area of a unit square.
About the Lesson
A unit on a number line can be related to a unit square with sides the same length as the unit on a corresponding number line. This TI-Nspire lesson is intended to extend the concept of fraction to unit squares, where the unit fraction 
is a portion of the area of a unit square. In 
, b indicates the number of regions – which have equal area – into which the unit square has been divided, and a represents the number of those regions that are shaded.
Students should have prior experience with the content in What is a Fraction? and Equivalent Fractions.
This is Lesson 3 out of 15 in the Building Concepts in Mathematics: Fractions Series.
Standards