![Middle Grades Mathematics Project: Factors and Multiples, Mouse and Elephant, Similarity and Equivalent Fractions, Spatial Visualization, Probabilityby Fitzgerald; Shroyer; Lappan; Winter; Phillips]()
Middle Grades Mathematics Project: Factors and Multiples, Mouse and Elephant, Similarity and Equivalent Fractions, Spatial Visualization, Probabilityby Fitzgerald; Shroyer; Lappan; Winter; PhillipsReview by: DeAnn Huinker · The Arithmetic Teacher · 1987