Napstablook D.

This site will drive your kids crazy. This website will make your child gain points rapidly for question after question, but after it reaches a certain limit, it will give you 1-2 points for getting the right answer, but subtract 10-20 points for a wrong answer. This stresses kids out immensely and should never be used by educators.

This program is the worst possible thing a student could use to learn a subject. This program will reset you in something called "The Tower of Power" if you get a question wrong, even if it is a mild typo. This program stresses kids out when teachers assign this, and the video is so insanely long and unhelpful it's just better to skip to the questions, since you don't reset on the video.