Home > Educator Resources > Gap Closing

Gap Closing Resources

Gap Closing resources are designed for students who need additional support in mathematics. For each topic in the resource, there is a diagnostic and a set of intervention materials. Diagnostics are designed to uncover the typical problems students have with a specific topic.



Dr. Marian Small, lead author of the Gap Closing materials, gives a brief description of how and why this resource was developed.

Number Sense Junior / Intermediate


Intermediate / Senior


Whole class planning

Gap Closing: Planning for Your Whole Class (video)

A conversation regarding how to plan for a grade 9 applied solving equations mathematics lesson to support students identified as needing more support through the gap closing diagnostic assessment