A new learning trajectory on the pyramid volume for secondary school

Abstract

This research aims to design Learning Trajectory (LT) for pyramid volume learning. This LT was designed based on curriculum review on the volume of pyramid in secondary schools and study of learning obstacles based on didactic, ontogenic, and epistemological aspects identified through diagnostic tests, interviews with mathematics teachers, and analysis of lesson plan used by the teacher in learning then analyzed using Didactical Design Research. This study involved 27 8th grade students and one mathematics teacher. The results showed that the concept of Pythagoras and volume of cube with learning media support played an important role in the learning trajectory of the pyramid volume.