Lessons are written to the teacher and tie together the various elements of the curriculum. Each features primary concepts to teach, vocabulary words, a note on which "Lots of Science Library Book" mini-book to make & read, lab activities, graphic organizer instructions, and "Experience, Investigations, and Research" enrichment/extension projects. Clear directions with step-by-step, leveled instructions, pictures, and helpful information make presenting lessons easy once the pre-lesson preparation is completed. A final cumulative project completes the course.

This flexible book is designed to be used as a multilevel resource or as a curriculum guide for a single student. In the "Lots of Science Library Books," the large print designates text for all students, while additional smaller print is given for older learners. Within the lessons for the teacher, pencil icons denote beginning (K-1st Grade), Primary (Grades 2 & 3) and Intermediate (Grades 4-8) levels.