These are copies of PowerPoint presentations given at recent conventions. If you’d like a presentation with audio, see the pre-recorded presentations.
Fractions SDCTM Multiplication Games NDCTM Fractions NDCTM
Dr. Joan A. Cotter presented at the Sioux Falls Christian Home Educators in Sioux Falls, SD in May 2015.
Dr. Cotter presented “Updating Montessori Fractions to a Linear Model” and “Teaching Visualization & Subitizing to Achieve Abstraction in Mathematics” at the American Montessori Society conference in March 2015.