Unlock Math online math program has been voted #1 by homeschool families 6 years in a row and is a Cathy Duffy 103 Top Pick! The reason? Results. Student achievement, confidence, and skill. Often, a 180-degree change in their attitude towards math. Using a platform that is easily navigated, providing virtual manipulatives that deepen student understanding, giving students access to live math help from expert math teachers, automated grading, and much, much more. This is the online math curriculum that checks ALL your dream curriculum boxes! For grades 6-12.