Building Foundations Of Scientific Understanding (Bfsu) - Bfsu Is For Teachers Homeschoolers And Other Educators To Deliver A First-Rate Science Education To K-8 Students And Older Beginning-Science Learners. Vol. I (Here) Is For Grades K-2 And Older Beginning-Science Learners. Volumes Ii And Iii Are For Grades 3-5 And 6-8 And Older Progressing Science Learners. Bfsu Provides Both Teaching Methodologies And Detailed Lesson Plans Embracing And Integrating All The Major Areas Of Science. Bfsu Less