Illustrating the Standards for Mathematical Practice

Penny Jar

Modeling and Using Tools, K-5

This module explores ways in which the practice of reasoning and explaining can be used to lay a foundation for mathematical modeling. Participants consider student thinking as they engage in modeling with the Penny Jar task using physical models, numbers, tables, graphs, and formulas.


Module Resources

K-5 Penny-Jar - Presentation
K-5 Penny-Jar - Presentation (with embedded videos)
K-5 Penny-Jar - Resources


Module Video

Penny Jar 1 Part 1


Penny Jar 1 Part 2


Penny Jar 2 Part 1


Penny Jar 2 Part 2


Penny Jar 3



You may also download these videos: