In this episode, Kimon and Richard speak with Philipp Legner, founder of educational software Mathigon. After graduating from the University of Cambridge with a degree in Mathematics, Philipp worked as a software engineer and developer at Bloomberg.  In 2017, Philipp founded Mathigon, which was acquired by Amplify in 2021. Philipp continues to run Mathigon under the aegis of Amplify.  Mathigon has developed several educational products. The overarching experience that ties them together is an interactive one. As students engage with different problems, they are prompted to explore different avenues. The courses are intended to be fun and interesting, and to engage students as much as possible.  All of the content on Mathigon is completely free to use. One of the main throughlines is to make math exploration visual and creatively engaging. In addition to Philipp’s insights into education, he has worked with educators to develop different aspects of the curriculum offered by Mathigon. Mathigon seeks to educate based on students’ interests. So, if a student is interested in sports, questions will use sports examples.  Because Mathigon is free to use, its primary source of revenue comes from licensing content to other educational companies. IBM, for example, licensed Mathigon. Part of the business plan, which Philipp successively executed, was to build the product as an acquisition target for a larger educational company.  While Philipp loves education, technology, and building products, he does not love running a business. This was part of the main motivation for selling his company to Amplify. His only condition for the sale was Mathigon, as it existed at the time of signing, would remain free forever.  Philipp Legner is VP at Amplify and Founder of Mathigon. Richard Lucas is a business and social entrepreneur who founded, led and/or invested in more than 30 businesses. Kimon Fountoukidis is the founder of both Argos Multilingual and PMR. Both companies were founded in the mid 90s with zero capital and both have gone on to become market leaders in their respective sectors. Kimon was born in New York and moved to Krakow, Poland in 1993. Listen to his story here. Support our show by becoming a premium member! https://newbooksnetwork.supportingcast.fm/entrepreneurship-and-leadership