Thin sliced math problems provide students with one problem at a time, and each problem increases in difficulty, but only slightly until they attain mastery and showcase higher order thinking. This lesson was inspired by the work of Dr. Peter Liljedahl in his book Building Thinking Classrooms. Thin slicing is ideal for group work lessons in Math. Each lesson set Includes: Thin Sliced problem Cards (requires cutting)Stop signs as built in opportunities to check for understanding before groups mov