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Asking students to choose their own path and justify it. Robert Kaplinsky - Glenrock Consulting. Skip to content Click here to receive email updates!

Robert Kaplinsky - Glenrock Consulting Problem-Based Lesson Search Engine January 18, 2014. 1001 Math Problems. 1001 Visual Puzzles. Dy/dan. Estimation 180 - Home. Finding Ways. Open Middle - Challenging math problems worth solving.