Abstract
A learner who can solve a problem cannot always understand the problem adequately. In order to deeply understand a problem, it is effective that he/she poses various problems which can be solved by the solution method of the problem. Moreover, after problem posing, it is important for him/her to consider and indicate relations between the problems posed by him/her. In order to let the learner think about the relations, we propose a support environment for learning by describing "problem map". The "problem map" is a kind of semantic network where a node is a problem and a link describes relations between two problems. In order to make the problem map, he/she has to consider the content of each problem and find the relations between them. We are developing the support environment for making the problem map in arithmetic learning. The system cannot only provide learners with workspace to make problem map, but also diagnose problem maps made by them.
