Raz-Plus resources organized into weekly content-based units and differentiated instruction options.
Concept (nonfiction), 212 words Grade 1
The book The Measurement Mysteries shows how to use a nonstandard referent--a paper clip--to find the length of an animal. Since each large paper clip has the same length, it can be an easy-to-use referent for students. The book compares the lengths of different animals after measuring them with paper clips. Students can express the length of each animal as a whole number of units and compare the numbers that result from their measurements.
Math Teaching Tips
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