Mark Horner

Horner helped build Siyavula, whose open math and science textbooks were developed with teachers, academics, and other contributors. The books are aligned to school curricula and offered in formats that include web and print. Siyavula offers some unbranded editions under Creative Commons Attribution, while its branded open editions can be shared without changes. That combination matters when a class needs an assigned text that can be read on a phone or used on paper.