Throughout my mathematical education I came across a very common problem. Essentially what happens is that a student will fail to properly learn a certain concept and will fall behind. Each year that the student is in math classes he or she will fall further and further behind the rest of the class until, eventually, the gap between students is so wide that the student has too stop taking classes altogether. My question is: what can be done to stop this problem? How can a student be brought up to the correct grade level without making the rest of the class go through remedial course work as well? Assume that the school in question has very limited resources. (i.e. no special remedial classes or in- class assistants)
something you can do is make fun and motivating papers of the theory. This could be, for example on one A4 paper . Good clear explanations with lots of color and some clear examples develop step by step. It takes a lot of your time, but it's something that you can use every year. What you can also do is scan your empty exercise papers and write tips. The students can then use your tips and this can help him solve the exercises in the class. For example, at an exercise on number theory where there is an ‘ – ‘ before the fracture "watch out for the minus before the fracture and add ( ) !!!!" are small but helpfull things that can make a big difference . When studying the student can read the tips again and again the theory is refreshed each time.