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Yohaku: A New Type of Number Puzzle Paperback – Feb. 8 2018
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- Paperback : 82 pages
- ISBN-10 : 154513832X
- ISBN-13 : 978-1545138328
- Product Dimensions : 12.7 x 0.48 x 20.32 cm
- Item Weight : 145 g
- Publisher : CreateSpace Independent Publishing Platform (Feb. 8 2018)
- Language: : English
- Best Sellers Rank: #469,451 in Books (See Top 100 in Books)
- Customer Reviews:
About the Author
Mike Jacobs is a Mathematics teacher in Ontario, Canada. Originally from Yorkshire in the U.K., he has been teaching for 27 years. He has created yohaku puzzles as a means of encouraging problem solving as well as practicing and improving number sense. His favourite prime number is 23 and he is convinced that triangle numbers are much more cooler than square numbers.
5 out of 5
6 global ratings
Top reviews from Canada
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Reviewed in Canada on December 29, 2018
Stretches and keeps the mind stimulated as you work through the puzzles. They become increasingly difficult and would be great for adults who enjoy number puzzles or students looking to sharpen their math skills in a fun new way. Great book!
Top reviews from other countries
Really fun puzzles!Reviewed in the United States on December 5, 2018
There are so many great number relationships that come out as you puzzle with yohaku! As someone who loves KenKens and other number puzzles, I definitely recommend this puzzle book!
Buy this!Reviewed in the United States on March 31, 2018
This is a great number puzzle book! I like that there are puzzles for elementary students, and puzzles any adult would be challenged by.