Open-ended questions that go beyond the usual word problems provide practice for students. Non-routine problems will challenge your students. Each strategy lesson begins with a problem modelled and directed by the teacher and followed by thought-provoking questions. As students progress, fewer clues are given. They learn to apply the strategy independently. 'Think about' questions may be teacher-directed or completed independently. Mixed practice lesson follows every four strategy units. Review lessons for each strategy and a final review are at the end of each student book. The student books provide application and practice in the following problem-solving strategies: look for a pattern; experiment; work backwards; use logical reasoning; solve a simpler problem; guess and check.