This website is an amazing reference tool for High School students covering several math classes such as Algebra I, Geometry, Trigonometry, Statistics, Calculus, and more. It contains a majority of topics and subtopics that are part of these classes and provides explanations, examples, videos, practice, and quizzes that will help with the learning and comprehension
for students.
for students.
cK-12 is another great resource that has a variety of math sorted by level or grade. It contains many different topics and concepts that each have a reading portion that contains information and examples, a video, practice, a real world example, and an interactive activity.