Bar Graph Problem

posted Nov 19, 2014, 5:34 AM by Patrick Johnson
The problem below was similar to one that appeared on the EQAO test. Students needed to figure out how many students were in Group A. The question told them how many students were in Group B and C as well as the total number of students. Students also needed to complete the scale. Students worked in partners to work on this problem.

To consolidate our learning, we sorted our solutions based on strategy (addition, addition and subtraction, using a hundreds chart and manipulatives)

Using addition and skip counting to solve the problem:

Explanations on how students arrived at their solutions: