Llamas, hot dogs, and six other silly, nonstandard measuring units demonstrate the math concept of weight. Prereaders learn the weight of a car, a hummingbird, a burger, and more through the use of surprising composite photos and a bit of text.
Llamas, hot dogs, and six other silly, nonstandard measuring units demonstrate the math concept of weight. Prereaders learn the weight of a car, a hummingbird, a burger, and more through the use of surprising composite photos and a bit of text.
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