Great Tool for Learning Math and Sciences

I wouldn't recommend it due to their lack of support through billing. One cannot even remove their payment information from the account.

My overall opinion regarding this project as a teaching tool is that it, in the correct hands, could be a very beneficial teaching and learning tool. The free version is good enough for most unless you run into a problem that becomes difficult to solve. The solutions and solving process are only available via Brilliant Squared (a subscription plan of $4/month billed annually). It is a good tool when the students have practiced a topic via worksheets and just need some additional review prior to an assessment. In fact, the website would possibly make a good assessment vehicle: the kids could copy a problem onto their own paper, or take a picture of it with their phone, work out the solution in small groups or independently, then submit their agreed-upon solution to the site. Also, I have used the site when creating short teaching videos of specific skill sets via the SmartBoard with iMovie on the iPad.

The obvious way it could serve students better is to provide the entire worked out solution free of charge, or at lease a couple steps of each solution. However, the free notes offset this by still providing the students with guidance even if they are going through questions on their own.