Description
This 15-page teacher guide turns number operations into a code-breaking mission for children ages 6–12. Children learn how symbols represent rules, then practise applying those rules consistently to encode and decode number clues. Use the materials and modeling guidance to introduce the activity, adjust numbers and operations to children's readiness, and extend learning by inviting children to explain or invent more challenging rules. An assessment checklist helps you note understanding and decide what to practise next.