"Khan Academy has partnered with the Louisiana Department of Education to align our content to the Eureka Math/EngageNY math curriculum. This is is the most popular math curriculum used in the United States according to a recent RAND Corporation study. To access our aligned resources, go to the Courses dropdown menu in the top left corner of your screen and select See all Math. From the Math page you can view all Math courses including the courses aligned to the Eureka Math/EngageNY curriculum. When students watch videos or read articles, their icon changes to add a blue line and check mark. When students complete exercises, their icon may change, depending on performance. Students can easily track their performance based on mastery level, such as mastered (100/100 mastery points) on the Name angles exercise and familiar (50/100 mastery points) on the Complementary and supplementary angles (visual) exercise."