Conceptualizing Ratios with Look-Alike Polygons

  • Conceptualizing Ratios with Look-Alike Polygons

    Nancy K. Dwyer, Betty J. Causey-Lee, and Nekeya M. Irby
    Article describes using similar rectangles to help children conceptualize ratio relationships in several different ways. Proportional reasoning is developed without introducing the process of cross-multiplication. Activity is included.