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  • Available Workbook $19.99

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  • Available Workbook - Black & White $7.99

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  • Click on the icon to download the Answer Key.

Dr. Marco Walder brings to you a Math Fun Book that will definitely inspire, help, and motivate students and parents to fall in love with math. The Math Tales of Mathias: Operation Island, a numbers paradise, combines essential reading components with math skills to tell a story students and parents will enjoy, while learning and growing their math skills.


Dr. Marco Walder has designed a unique Math Fun Book for students Grades K-3 to ensure a great math foundation is built, which allows parents and kids to actively participate and learn together, as they make their way through Operation Island. Operation Island focuses on understanding Addition.


By helping Mathias and Mr. Scribble make it through Operation Island math will again become fun and a subject students love, live, and grow from for years to come. If you want to take your student to the next level, this Math Fun Book is for you!!

© Dr. Marco Walder All rights reserved 2016.​