In the final evaluation of the Next Generation Science Standards (NGSS), the Thomas B. Fordham Institute grants the standards a C grade. The NGSS grade is clearly superior to grades we granted to the science standards of sixteen states and the PISA framework in the State of State Science Standards 2012 but clearly inferior to those of twelve states and the District of Columbia, as well as the NAEP and TIMSS frameworks.
Among the shortcomings of the NGSS is its acute dearth of math content, even in situations where math is essential to the study and proper understanding of the science that students are being asked to master. Also problematic is the alignment of NGSS math with the Common Core State Standards for mathematics. Appendix L of the NGSS seeks to explain the alignment and apply math more thoroughly to NGSS science. This commentary by Johns Hopkins mathematician appraises that appendix.