Trends in Learning Activities that Focus on “Parallel Lines” Using The Van Hiele Phases of Learning in Instructional Activities

Abstract

It is necessary to have successful learning activities in mathematics that teachers must provide students learning activities in order to make them understand and have good attitude towards mathematics. Especially in geometry, most students had difficulties in learning geometry, particularly writing proof that requires critical thinking and communication language

          Framework of the Van Hiele phases of learning  by Pierre van Hiele and Dina Geldof-van Hiele consists of five phases: 1. Inquiry Information, 2. Directed Orientation,   3. Explicitation, 4. Free Orientation, and 5. Integration. The model will enhance students’ geometric skills and students will be able to understand geometry more efficiently. Eventually, students will develop their observing, thinking and discussion skills. They will be more experienced and able to find the way to writing proof correctly.