In this video, we provide essential "math help" by demonstrating how to find the input value when given the output of a "function". We walk through solving "math equations" to "solve for x" using ...

There’s a line from the original Star Trek where Khan says, “Improve a mechanical device and you may double productivity, but improve man and you gain a thousandfold.” Joan Horvath and Rich Cameron ...

In this video, we provide essential "math help" by explaining how to simplify complex fractions, which often involves careful "algebra" and understanding "rational functions". This "math tutorial" ...

Want to help your 12th-grader master math? Here are some of the skills your child will be learning in the classroom. For high school students, math skills and understandings are organized not by grade ...

It’s a standard conversation between math students and teachers all around the world: Student: “Why do I need to know this stuff anyway?” Teacher: “Because it will show up on the SAT and you need it ...