Pengembangan Lembar Kegiatan Siswa Berbantuan Tangram Bercirikan Open-Ended pada Pokok Bahasan Segiempat dan Segitiga Kelas VII SMP

Nurdiansyah, Ibnu
Muhsetyo, Gatot
Qohar, Abd.

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan
Vol. 3, No. 6

The purpose of this study is to describe the process and the development result of students worksheet assisted by Tangram with Open-Ended Orientation about Quadrilaterals and Triangles. The development model is modified from Plomp stage are preliminary research, prototyping phase, and assesment phase. The field trial conducted to 20 students. The result shows product is valid from score of lesson plan is and the score of worksheet is . Product is practical since the score of observation of learning effectiveness is and questionnaire of student is The product is also effective based on the student’s evaluation test result which shows that 85% students reach the minimum score.