Abstrak This paper is motivated above not least teachers who have not been able to teach mathematics to students as long as well so the paradigm of math is difficult and unplesant subject which is embedded since early. One of the problem is the development of mathematical knowledge of teaching (MKT) that has not developed since the teacher's status as a prospective teacher. Thus, the course is designed to be able develop the MKT for students of The Students of Elemtary Teacher Education Faculty (PGSD). The implementation of MKT development in this paper is done through a series of design as follows: 1) create a mindmap as a review of the lectures topic , and 2) make the book "Matematika Unik Menggelitik". The lectures design is implemented, evaluated and developed with the reflection results with students of The Students of Elemtary Teacher Education Faculty (PGSD).