ambridge International Primary and Lower Secondary Curriculum Frameworks. Whether they are learning about multiplying with chocolate or using recipes to understand fractions, Cambridge Primary Mathematics helps your learners develop their mathematical thinking skills. Learners will be fully supported with worked examples and plenty of practice exercises, while projects throughout the book provide opportunities for deeper investigation of mathematical ideas and concepts, such as exploring negative numbers through water levels. With key word boxes, clear diagrams and supporting illustrations, the course makes maths accessible for second language learners.