Comparing Lengths Using Real Objects

This video tutorial teaches how to compare the lengths of objects using real objects like paperclips, erasers, and cubes. It explains the process of measuring by aligning objects end-to-end and highlights common mistakes such as leaving gaps. The tutorial includes examples of measuring a math book with paperclips, comparing pencil lengths with erasers, and determining the height difference between a desk and a chair using cubes. The video emphasizes the importance of accurate alignment and subtraction to find differences in length.

If Mary's desk is 36 cubes tall and the seat of her chair is 20 cubes tall, how much taller is her desk?

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What steps do you take to find the difference in length between two objects?

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