Wacky Ruler - 2 views
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Cristina Runkles on 09 Apr 11This math activity gives links for the teacher to print out a wacky ruler and some wacky worms for students to measure. The ruler is wacky because students actually have to estimate some of the measurements. Students can practice skills in measurement and estimation. When students are finished measuring they can come up to the site and put in what they think each worm's length is.