# Proof: The foundation of mathematics

Primary students are capable of arguing deductively, as shown in the video *Addition of Odd and Even Numbers*.

You can download the *Addition of Odd and Even Numbers* video transcript.

A similar scenario is described in the articleon *Why Reasoning?* on the AAMT website. Primary students may enjoy some of the activities from *Primary Proof?* found on the Nrich website.

For secondary students, geometry is a common area for proof exercises. However, many Number and Algebra activities also lend themselves to formal proof. For example, the activity *Magic Vs* is a proof activity from the Nrich website that is suitable for years 4–10.