Number Sense, Teacher´s Resource Guide/Answer Key

Number Sense encourages students to explore number relationships to build a concrete understanding of mathematical operations, problem-solving strategies, and real-life applications. Each text uses a highly visual and active approach to introduce basic mathematics concepts. Each lesson is carefully designed to simultaneously build students' mastery and self-confidence. Each text illustrates a basic math skill with a step-by-step approach, and follows with lots of practice.