This teacher resource offers a detailed introduction to the Hands-On Science and Technology program (guiding principles, implementation guidelines, an overview of the science skills that grade 3 students use and develop) and a classroom assessment plan complete with record-keeping templates. It also includes connections to the Achievement Levels as outlined in The Ontario Curriculum Grades 1-8 Science and Technology (2007). This resource has four instructional units: Unit 1: Growth and Changes in Plants Unit 2: Strong and Stable Structures Unit 3: Forces Causing Movement Unit 4: Soils in the Environment Each unit is divided into lessons that focus on specific curricular expectations. Each lesson has curriculum expectation(s) lists materials lists activity descriptions assessment suggestions activity sheet(s) and graphic organizer(s)