
audiobook
Language
en
Duration
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Publisher of text edition
Project Gutenberg
Release date
2012-08-30
Rights
Public domain in the USA.
Subjects
b. 1871
A teacher and math writer from the early 1900s, he is best remembered for turning number puzzles, curiosities, and classroom ideas into lively reading. His surviving work has an approachable, playful feel that still makes elementary mathematics seem full of surprises.
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