Unit 8: Grade 3 Lessons

Students are introduced to the associative property (numbers can be grouped without changing the sum). Students find the length of their arm by using the associative property to help them add two measures: the length from the tip of the middle finger to the wrist, and the length from the wrist to the shoulder. To consolidate, students discuss how they decided how to decompose numbers to make addition easier.

In this lesson, students develop mathematical models that consider plant pot sizes and available space using both measurement and number skills. The students engage in all components of the mathematical modelling process in order to solve a classroom issue and determine ways pots can be placed in an organised manner as they grow. In the process, they make direct connections to the science curriculum.

Students review spatial and directional language by following instructions given by the teacher. In pairs, students complete two tasks, one using codes and loops to create workout routines and another involving navigation with a map.