This is an activity which takes one of the multiplication tables and randomly replaces the numbers with a letter or symbol to give a code. Pupils use 10 strips with each part of the table, together with a copy of all the multiplication tables.
Download the resources:
This will be aimed more at those older pupils who still have gaps in knowledge of multiplication facts. In my classes I decided that all other approaches will probably have been tried. The idea is that they look for patterns, structures, etc in the number tables and match the coded strips with these.
What I did:
I designed and made several coded tables, cut these in strips and allowed pairs to work with them, rotating as they finished. I circulated offering interventions in the form of questions[attached “Notes”] to open up thinking.
This is a very engaging activity using pupils natural curiosity with codes. Pupils usually said it helped them see connections and so improved recall of the harder ones [6, 7 and 8 times table].
Pupils usually found it engaging though there were more difficulties with the first one.
Teachers either loved this or hated it...there was rarely middle ground.
Pairs of pupils coded new straips and re-coded old ones to set to others.