We make students work on basic and simple concepts.
We try to build several solutions for one problem to make you understand that the way you tackle a problem depends on your point of view. If you want to gather $1,000 in $5 and $10, you have N (the overall number of tens and fives), F (the number of fives) and T (the number of tens). Whichever of the quantity N, F, or T you are given, you can express the other two.
If you want the best grasp of geometry, algebra, trigonometry, calculus, statistics, and probability, you have a good partner who will help you go beyond a weird vocabulary and make a link with problem-solving.