The larger text and carefully controlled language level make the pages more accessible for lower achievers. More regular in-text questions and the end-of-spread questions build up pupils' knowledge - and confidence - throughout the lesson. Red and Green books have identical pagination, so you can use them side by side in a mixed-ability class.

The parallel higher level Red books in the Catalyst series use the same format as the Green books. This text also includes hands-on activities, summaries, and in-text questions to help pupils consolidate their knowledge.

The parallel higher level Red books in the Catalyst series use the same format as the Green books. This text also includes hands-on activities, summaries, and in-text questions to help pupils consolidate their knowledge.

The larger text and carefully controlled language level make the pages more accessible for lower achievers. More regular in-text questions and the end-of-spread questions build up pupils' knowledge - and confidence - throughout the lesson. Red and Green books have identical pagination, so you can use them side by side in a mixed-ability class.

The parallel higher level Red books in the Catalyst series use the same format as the Green books. This text also includes hands-on activities, summaries, and in-text questions to help pupils consolidate their knowledge.