Mass and density are difficult topics for kids to understand, and even more difficult when you have visual impairments or blindness. Learners will make boxes and fill them with cotton, sand, or crushed paper. They will feel the density and mass of each box by touching what is inside each box and by lifting them to feel their weight. They will collect data by charting and comparing each group's experience.

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Pros

• This is a very tactile and kinesthetic way to teach a difficult concept

Cons

• This is not a full lesson with extensive procedures, but rather a supplemental activity that can be used in a full lesson