Numeracy Resources

Two children discuss whether "Big Cheez-its" are really twice as big as regular Cheez-its. While the learners in this case are children, numeracy students of all ages could enjoy exploring area with a similar question.

Before you teach another formula for area of a 2-D shape, check out the "applets" on this page. Teachers who do not have access to internet in their classroom can learn from the animations and do a similar demonstration with paper.

A 3-act lesson starts with a quick video or visual that makes students wonder. This one from Graham Fletcher (gfletchy) is set up to ponder the concept of area.

In these materials, students explore concepts in three-dimensional (3D) geometry and measurement, including: identifying the types of solids in the world around us, measuring the surface area and volume of solids, and understanding where the geometric formulas on the HSE come from.

In these materials, student explore concepts in two-dimensional (2D) geometry and measurement, including: categorizing 2D shapes; measures and units of length (perimeter and circumference); measures and units of area; where the geometric formulas come from; the Pythagorean Theorem; and scale factors.

When is area more than area? In this recorded webinar, presenters Connie Rivera and Amy Vickers from the Adult Numeracy Network (ANN) explore coherent mathematical content that can be addressed using mathematical arrays.