Develop your students problem solving and logical reasoning skills with these fun riddles. This is a SmartBoard file. Each slide lists attributes of different shapes (square, rectangle, trapezoid, parallelogram, triangle, pentagon, hexagon, and octagon). As each attribute clue is revealed, students drag the shapes that it CAN'T be into the "No" box. The final clue gives them a definitive clue determine the shape.
Included with this SmartBoard File is a chart of the 8 shapes. I laminate these charts, and students can solve the riddle at their desks by crossing out the shapes it can't be with a white board marker as the clues are revealed. This keeps all students involved rather than the class being passive observers as a few students go to the board.
This file corresponds to Chapter 15 Lesson 5 in 2nd grade Harcourt Math series.
I can't load thumbnails of my SmartBoard files, so please download the preview to see what the file is like.