**Yelena McManaman** is a blogger, education consultant and developer, focusing on young children. Yelena homeschools her son and organizes classes and events for kids. Online, Yelena helps other parents collaborate around advanced math for young children. | **Dr. Maria Droujkova** is a parent, curriculum developer and mathematics education consultant. Maria brings together leaders in mathematics education, researchers, developers, parents and teachers for projects and discussions of family mathematics, early algebra, individualized instruction, math games and math clubs. | **Ever Salazar** is a professor of mathematics and a mathematical artist. His illustrations, posters and animated videos express gentle humor, well-structured visualizations of mathematical systems, and deep compassion for learning and learners. |

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