In this module, students begin by measuring time and then move to activities that involve linear measurement. They also progress beyond linear measurement and apply their knowledge toward the concepts of perimeter and area of two-dimensional shapes, strengthening their understanding of these concepts and their interdependency. Also included: materials lists activity descriptions questioning techniques problem-solving examples activity centre and extension ideas assessment suggestions activity sheets and visuals All modules include a list of children's books and websites related to the mathematics topics introduced, a detailed introduction to the Hands-On Mathematics program (guiding principles, implementation guidelines, an overview of the skills that students use and develop during mathematics inquiry), and a classroom assessment plan and record-keeping templates.