50 brilliant lessons for grades 6-9 that link mathematics and social justice. In his follow-up to the groundbreaking Maththatmatters, David Stocker gives us Maththatmatters2 a collection of 50 brilliant lessons for grades 6-9 that link mathematics and social justice. For educators keen to provide rich leaning opportunities and differentiated content that engages students with their lived realities, these lessons are sure to spark meaningful discussions...and action.