Maria Miller
Maria Miller is a math teacher, author of Math Mammoth books, and a homeschooling mom. She grew up in Finland and earned her master's degree in mathematics there in 1997. Miller started writing math books in 2002, prompted by her experiences in tutoring homeschooled children. She felt the books they were using were inferior, especially when it came to conceptual understanding of mathematics. She began to write books that focus on the concepts and the "why" of mathematics, though not forgetting the "how" and the needful practice. Eventually these materials turned into a complete math curriculum under the name Math Mammoth. Her books and videos have become popular and appreciated, both among parents and teachers. Math Mammoth materials and videos focus on number sense, mental math, conceptual understanding, algebraic reasoning, and word problems more than most other math materials out there.