How to count sheep without falling asleep

by Ralph Leighton, Carl Feynman, George Ulrich (Illustrator)

Explores the concept of using symbols for numbers: ones, tens, hundreds, etc.

38 pages, Hardcover

First published January 1, 1976

About the author

Ralph Leighton is an American biographer, film producer, and friend of the late physicist Richard Feynman. He recorded Feynman relating stories of his life. Leighton has released some of the recordings as The Feynman Tapes. These interviews (available as The Feynman Tapes on audio) became the basis for the books Surely You're Joking, Mr. Feynman! and What Do You Care What Other People Think?, which were later combined into the hardcover anniversary edition Classic Feynman: All the Adventures of a Curious Character. Leighton is an amateur drummer and founder of the group Friends of Tuva. In 1990 he wrote Tuva or Bust! Richard Feynman's Last Journey.
He is credited as associate producer and originator of the concept for the Academy-Award–nominated documentary film Genghis Blues (2000), which came about through the nexus provided by Friends of Tuva.

Reviews

[D'metria]

This is an excellent book for teaching both addition and subtractions and the different methods that students can use to complete mathematical addition and subtraction problems.