A Robert no le gustan las matemáticas, como sucede a muchas personas, porque no las acaba de entender. Pero una noche, él sueña con un diablillo que pretende iniciarle en la ciencia de los números. Naturalmente, Robert piensa que es otra de sus frecuentes pesadillas, pero, en realidad, es el comienzo de un recorrido nuevo y apasionante a través del mundo de las matemáticas.

EN: Interesting book but a bit boring. The "Alice in Wonderland" effect is quite mild. I did not like the distortion of the correct names of mathematical concepts.
Overall I was hoping for better.
-
IT: Libro interessante ma leggermente noioso. L’effetto “Alice nel paese delle meraviglie” è abbastanza mite. Non mi è piaciuta la storpiatura dei nomi corretti dei concetti matematici.
Nel complesso speravo meglio.
( )

What I understood was too basic and much of the rest I just didn't get...and this is supposed to be a kid's book?! What a wasted opportunity. ( )

This was a very interesting book. Very good book to use in a math class. This book is about a 12- year old boy names Robert. He believes math is not important and a completely waste of time. But during the night Robert is visited by a number devil who shows up in his dreams and shows him that math is fun. He learns about different mathematical concepts, such as, prime numbers, square roots, multiplying numbers, etc. He does this every night and at the end is named a number apprentice. This book would be great to use in math to teach students that math is enjoyable. It allows students to be introduced to math concepts in a lively way. It has great visuals and diagrams which is a plus. ( )

This is a book about maths brought alive in the dreams of a boy. Initially overwhelmed by the apparent complexity of manipulating numbers, he learns how simple and beautiful mathematics can be. I love it because it’s such a fun approach. ‘Scary’ mathematical terms translated into words you actually want to say and with beautifully illustrations. If you have children, I suggest you read it to them. Slowly, pausing to grasp the mathematics involved and with a pen and paper by your side. ( )