Professor 13 and Abacus Addition app for iPhone and iPad

Let Professor 13 and Abacus the Math Dog motivate your child to learn and understand the concepts of basic addition with whole numbers. In this app, Professor 13 helps children to learn math the fun way through the use of games, activities, alternative algorithms and extra practice.

This app provides:
- Direct access to our YouTube videos within the app to learn all of Professor 13s math tips and tricks, eliminating the need to switch between the app and browser.

- Games that reinforce math skills in a fun way. Your child can compete against you or Professor 13 in games that get your child thinking about concepts beyond basic single digit addition.

- Practice sessions that reinforce basic fact families and more complex addition problems up to the hundreds place. Children will learn their basic facts using digitized versions of common classroom manipulatives. In addition, children can challenge themselves in the practice interface to solve a problem, much like they would in class instead of using a multiple-choice based drill format. If they get stuck, they can always call on Professor 13 for help.