Below are problem based lesson, three act math tasks and activities I use with my classes. If you have never taught a lesson like these I suggest you start with Dan Meyer’s post or read through my Peek into My Classroom page. Feel free to use and edit these lessons. Click away and read about each lesson.
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In this 3-Act Task students will be presented with a puzzling video of 3 “hour glass” sand timers. Students will solve a brain-teaser like problem while ultimately learning about common multiples and the least common multiple (LCM).