Make Math Moments Academy › Forums › Mini-Course Reflections › The Concept Holding Your Students Back › Lesson 4-2: Where Comparison Lives In Additive Thinking – Discussion › Reply To: Lesson 4-2: Where Comparison Lives In Additive Thinking – Discussion
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In comparing the two pieces of lumber, one being 2.7 meters and the other 2.07 meters they might use a number line or they might use conversion-thinking in terms of centimeters versus millimeters. This would probably be more likely with your Canadian students than with my American ones tough.