In Teaching Subtraction Using LEGO(R) Bricks, Dr. Shirley Disseler has developed activities that work to help students learn how to subtract, using a common toy available in most classrooms andhomes-LEGO(R) bricks! Young children have their first experiences with subtraction early, when they play games of giving some items and keeping other items. As they attach the concept of subtraction to mathematicaloperations, they learn important vocabulary words (minuend, subtrahend, difference). Later, repeated subtraction leads to understanding division. In this book, the hands-on activities using LEGO(R) bricks help students learn: - start unknown subtraction- change unknown subtraction- result unknown subtraction- comparisons- decomposing numbers and place value The book starts at the most basic concepts and focuses on a specific topic in each chapter. Most students learn these concepts between grades K - 2. Using LEGO(R) bricks to model math provides a universal language. Children everywhere recognize this manipulative.It's fun to learn when you're using LEGO(R) bricks!