The majority of teacher in SMP N 1 Pondok Kelapa Central Bengkulu still have difficulty how to organize the effective learning. Very rarely do they plan mathematic learning with a real-life approach that enable the student, because they assume that such learning was useless, confusing and time-consuming. Based on the preliminary survey found that in SMP N 1 Pondok Kelapa, the teacher in there still used a conventional method in learning. The teacher rarely used the prop as learning media, as in

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... the matter of quadratic equation. Whereas making innovative and creative mathematical tool was so easy to be created, so that in this activity have done "The training of active learning by using block of algebra for teacher of high school in SMP N 1 Pondok Kelapa. Block of Algebra was a learning tool of matter of quadratic equation. The method used in this activity include: workshop, demonstration, discussion, and Monitoring and Evaluation. Before the activity was done, All of teacher did not have knowledge how to make prop "algebra block". After the workshop was conducted and after completing the practice of making the prop in school, about 84% (5 groups from 6 groups of teacher) produced better and applicable prop. While the other group had not finished completing the "algebra block" prop because of technical error, but in general (about 95%) the teacher' response to this activity was excellent and their knowledge of the making of algebra block prop increased. PENDAHULUAN Matematika merupakan disiplin ilmu yang mempunyai sifat khas bila dibandingkan dengan ilmu yang lain. Secara singkat dikatakan bahwa matematika berkenaan dengan ideide/konsep-konsep abstrak yang tersusun secara hierarkis dan penalarannya deduktif. Depdiknas (2010) menyatakan selain bersifat hierarkis, matematika juga merupakan ilmu yang berpola pikir deduktif dan konsisten. Menurut Rohayati (2012) hingga saat ini, mata pelajaran matematika di sekolah masih dianggap sebagai mata pelajaran yang paling sulit di antara mata pelajaran yang lain, sehingga bantuan alat peraga masih sangat dibutuhkan. Alat peraga matematika adalah sebuah atau seperangkat benda konkrit yang dibuat, dirancang, dihimpun atau disusun secara sengaja, yang digunakan untuk membantu menanamkan atau mengembangkan konsep-konsep atau prinsip-prinsip dalam matematika. Dengan alat peraga, maka hal-hal yang abstrak dapat disajikan dalam bentuk model-model,