Calvert 2nd Grade Science teaches the development of critical observation skills as part of instruction in the four major science strands of life sciences, earth and space sciences, physical sciences, and the nature of science. Presented in 10 colorful units, this course captivates students with lessons on how animals are alike and different, how people are alike and different, caring for pets, using the five senses, colors, shapes, sizes, caring for our world, the seasons, and more. An essential teacher's guide is included which consists of general teaching resources, detailed teaching notes, complete answer keys, alternate tests, a complete list of equipment needed for experiments, and plenty of additional learning resources and activities. In addition, mastery-based workbooks foster academic independence and critical thinking, including daily instruction, review questions, and experiments, as well as opportunities for regular assessment.