Describes how elementary linear algebra can be taught successfully while introducing students to the concept and practice of mathematical proof. Suggests exploring the concept of solvability of linear systems first via the row echelon form (REF). (Author/KHR)

The paper describes the details and use with primary school teachers of a problem-solving activity known as the King Alfred's College Maths Game. The game demonstrates to teachers that problem solving needs to be approached through structured learning experiences that provide material for reflection and questioning. (Author/MDH)