FREE: Supplementary Base-10 Lessons - Lower Elementary

Montessori’s Golden Bead Material provides children with a concrete understanding of the base-10 system. However, there are some Common Core Standards that are not met by traditional Montessori lessons. This document outlines 13 lessons from the Illustrative Mathematics curriculum (accessed for FREE), which can be added to Montessori to ensure full coverage of the CCSS place value standards for 1st-2nd grade.