what is a tape diagram

A tape diagram is a rectangular visual model that is used to assist with the calculation of ratios and addition, subtraction, and commonly multiplication. It is also known as a divided bar model, fraction strip, length model, or strip diagram. Tape diagrams are used in mathematics education to solve word problems for children in elementary school. They are a visual way of showing understanding or learning math, and teachers have used visual diagrams and manipulatives for years. Tape diagrams are used to illustrate number relationships and can be used to solve any type of word problem, but they are especially useful for solving multiplication and division problems. They work by showing equal numbers in each cell, adding up to a total amount or when multiplied, resulting in that total amount. Students can use tape diagrams to organize information and communicate their mathematical thinking. In practice, a tape diagram in math looks like a segment of tape, used to illustrate number relationships.