At the Missouri Council of Teachers of Mathematics annual conference in Columbia, MO, the Two-Minute Teacher’s Guide team presented on problem reversals. This is a technique for creating math problems that can break up the monotony of procedural practice problems and can lead to some student creativity and rich mathematical discussions.
At MCTM 2019 the TMTG team also presented on creating examples and non-examples of mathematical objects.
Two-Minute Teacher's Guide 
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