Читать книгу Mathematize It! [Grades 6-8] - Kimberly Morrow-Leong - Страница 17

Using physical representations such as blocks, concrete objects, and real-world items (for example, money, measuring tools, or items to be measured such as beans, sand, or water), or acting out the problem in various ways, is called modeling. Such models often offer the closest and truest representation of the actions and relationships in a problem situation. Even problem situations where negative quantities are referenced can rely on physical models when a feature such as color or position of an object shows that the quantity should be interpreted as negative.

Modeling: Creating a physical representation of a problem situation.