Around 1900 many American educators advocated the use of objects in teaching mathematics and the sciences. R. O. Evans Company of Chicago published this set of twenty chromolithographed charts. They ...
Can you spot the connections among numbers? By Marcel Danesi, Ph.D. in Brain Workout The word arithmetic comes from Greek arithmētikē, which is itself made up of two words, arithmos “number” and ...
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Many nineteenth-century educators ...
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