Robert Kaplinsky - Problem Solving Framework v.8.1 Want to modify the Problem Solving Framework? Click here and to make a copy for yourself via Google Docs. Graham Fletcher's Lessons TK - 6th Grade Dan Meyer's Spreadsheet 6th - 12th Grade Robert Kaplinsky's Lessons K - 12th Grade Yummy Math 2nd - 12th Grade Andrew Stadel's Lessons 6th - 8th Grade