The relationship is explored with tables, graphs, and equivalent fractions. The last page of the teacher section provides examples of proportional reduction of situations with large numbers into situations with more comprehensible numbers. All pages of the print do not need to be copied for all students. Many lessons can be limited to one classroom set or one per group if cooperative groups are used. Some lesson sheets can be used as classroom guides.
Key terms are in bold type within the context of the lessons.
Many of the lessons involve measurements which are better done with teams of students. The fourth set of lessons focuses on percents. Lesson 1 of this set of lessons builds on students' knowledge about equivalent fractions and their multiplicative sense for proportions. Proportions are defined. Lesson 2 continues to approach proportional reasoning using statements of equivalent fractions and multiplication by unitary rates.