To help children develop visual images and develop a quantitative feel for numbers expressed as percents, introductory activities at the concrete level should use
a. base-ten blocks, with the flat representing 100 percent, and place small cubes on the flat to represent various percents.
b. the benchmarks of 1%, 50%, and 100%.
c. 10-by-10 grids to shade squares to represent various percents.
d. fractions as percents.
a
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