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Thread Starter 
Product/Service name:

Primary Grade Challenge Math by Edward Zaccaro

Brief description of product/service:

Supplemental math for gifted or math adept children, Gr. 1-4. Interesting and humorous short lesson/discussions are followed by four levels of questions: 1,2,3 and Einstein. There are 26 topics, many of which are not typically covered in K-4. An answer key is provided, with short notes for the most challenging problems.

Store/Site of purchase:

Prufrock Press (publisher)



How long have you used this product/service?

On and off for 10 months.


There is no drudgery, for this is all application: Zaccaro has a gift for making math come alive, a real departure from the standard fare. Some topics/levels can be covered after the traditional Gr. 1-2 scope and sequence, but many require knowledge of more advanced topics, such as multiplication facts to recognize a sequence of squares.


Engaging, real-world applications of mathematics, written in a humorous yet informative style. My one quibble is that US measurements are used instead of Metric, though the necessary conversion information is always provided.

Customer Service/Communication:


Would you purchase this product/service again?

Absolutely, as well as as the rest of Zaccaro's catalogue:

Challenge Math
Real World Algebra
10 Things All Future Mathematicians and Scientists Must Know
Be a Problem Solving Genius

Have you made a complaint to the company about the product/service? If yes, please provide details of any resolution or lack thereof.


Additional Comments:

I give it (How many thumbs up out of five?):