Abstract
The purpose of this study is to composing didactic design concept about surface area and volume of prismsbased on learning obstacle (learning difficulties) students when studying the concept.The research methods is qualitative methods with data collection techniques are observation, question and answer, and documentation. The initial step in this research is identifying learning obstacle with learning obstacle instrument to students in grade IX junior high school and grade X senior hign scool who has studied about that concept. After learning obstacle is identified, the didactic design then composed by adjusting the learning theories that are relevant and does not reduce mathematical abilities that can be developed. Didactic design which has been arrangedthen implemented in the students learning process on grade VIII SMP. Didactic design effectiveness was measured using a modified degree increase of the gain normalized Hake. Didactic design has show considerable effectiveness, with an effective medium category. Results of the implementation and effectiveness of the didactic design shows that the didactic design that has been composed can be used as one of the alternative designs in studying the concept of surface area and volume of prisms.
Highlights
The purpose of this study is to composing didactic design concept about surface area and volume of prismsbased on learning obstacle students when studying the concept.The research methods is qualitative methods with data collection techniques are observation, question and answer, and documentation
The initial step in this research is identifying learning obstacle with learning obstacle instrument to students in grade IX junior high school and grade X senior hign scool who has studied about that concept
After learning obstacle is identified, the didactic design composed by adjusting the learning theories that are relevant and does not reduce mathematical abilities that can be developed
Summary
DESAIN DIDAKTIS KONSEP LUAS PERMUKAAN DAN VOLUME PRISMA DALAM PEMBELAJARAN MATEMATIKA SMP. Penelitian ini bertujuan untuk menyusun suatu desain didaktis konsep luas permukaan dan volume prisma berdasarkan learning obstacle (kesulitan belajar) yang dialami siswa saat mempelajari konsep tersebut. Langkah awal dalam penelitian ini adalah mengidentifikasi learning obstacle dengan mengujikan instrumen learning obstacle kepada siswa kelas IX SMP dan X SMA yang telah mendapatkan/mempelajari materi tersebut. Desain didaktis kemudian disusun dengan menyesuaikan pada teori-teori belajar yang relevan serta tidak mengurangi kemampuankemampuan matematika yang dapat dikembangkan. Desain didaktis yang telah disusun selanjutnya diimplementasikan pada proses pembelajaran kepada siswa kelas VIII SMP. Hasil implementasi dan efektivitas desain didaktis menunjukan bahwa desain didaktis yang telah disusun ini dapat dijadikan sebagai salah satu desain alternatif dalam mempelajari konsep luas permukaan dan volume prisma.
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