Tape diagram
 | This article relies largely or entirely on a single source. (April 2024) |
A tape diagram is a rectangular visual model resembling a piece of tape, 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.[citation needed] In mathematics education, it is used to solve word problems for children in elementary school.[1]
Example[edit]
If, for example, a boy has won fifteen games, and the ratio of his wins to losses is 3:2, a tape diagram can be used to determine his number of losses, such as by doing
| 15 | ? | ||
| Total games lost = ? | |||
|---|---|---|---|
| 3 | 2 | ||
| Total games lost = ? | |||
|---|---|---|---|
Since the ratio between his wins and losses is 3:2, and he has won fifteen games, it can be concluded that the boy has lost ten of these games.
See also[edit]
- Use of bar modeling in the PR1ME Mathematics Teaching Programme
- Use of bar modeling in Singapore math
References[edit]
- ^ Lisa Watts-Lawton; Colleen Sheeron (2015). Eureka Math Curriculum Guide: A Story of Units, Grade 2 yes. Wiley. p. 128. ISBN 978-1-118-81261-7.
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