ah wun learnding

[Quindiana Jones]

So today I was bored, and decided to figure out the difference in circumference of two circles in a practical way that I could properly visualise, and I realised that I'd forgotten how. It took me ages to remember. This is not good.

I enjoy maths and science and such like, but it annoys me that I've forgotten most of what I learned in school. Do any of you happen to know any decent places online for refreshing ones basic, intermediary and advanced skills in these areas?

Weird question, I know. xD

[Pumpkin]

https://www.khanacademy.org/

[Parker]

https://www.khanacademy.org/

Yea, this is great. You could also look for information on the exams of the level you are trying to remember. For example, a year or so back I realised how bad I was a math, and how I had forgotten everything, so I grabbed a student guide book for GCSE Maths (here in the UK. GCSE exams are taken when youre like 16/17 I think) and used it as a refresher for the fundamentals of that grade-level.

[I Took the Red Pill]

Paul's Online Math Notes is by far the best online resource for learning math in my opinion. Every section is written clearly and contains very good example problems. He also includes practice problems with solutions at the end of each section.

I also like the chronology in which the units are organized. I actually plan the lessons for my Calculus class based around Paul's framework rather than the book's because I find it superior.

The site mostly focuses on Calculus and Differential Equations, but there is a Precalculus section located here (http://tutorial.math.lamar.edu/Classes/Alg/Alg.aspx) which sounds like it could be the place for you to start.

[Quindiana Jones]

Beautiful. Thanks for the suggestions. My intention was to start with some KS4 maths and science gaff, as Parker suggests, but it's great to have some other options as well! :D