Four-Tier Diagnostic Test Method to Identify Conceptual Understanding in Calculus

Abstract

The study aims to identify the ability to understand concepts with four-tier diagnostics test method. Every student has a different ability to understand mathematical concept. It is influenced by various factors such as intelligence, emotional conditions, environment, etc. This research uses the qualitative method with study case strategy. The data obtained from the four-tier diagnostic test on the calculus chapter. The subjects in this research are XIIth grade students. There are four stages of work in a four-tier diagnostic test, 1) question, 2) level of confidence in the answers, 3) reason, and 4) level of confidence in the reason. The result of this research show that most students have low ability to understand concepts. Most students are not sure of the answers to calculus problems given. Students also do not give the correct reason for the answer.