Constraints of students in drawing logarithmic graphs based on polya steps and scaffolding implementation

Abstract

This study aimed to describe the constraints of high school students in drawing logarithmic graphs based on Polya steps and scaffolding implementation. This study used descriptive explorative approach. This study was involved 6 students of grade X. The instruments were sheet of problems and interview guides. The six students were asked to draw logarithmic graphs. Two respondents were selected because they answered all problems then interviewed to clarify the answers based on Polya steps and to identify the constraints they faced. Constraints experienced by the respondents based on Polya steps were in understanding the problem and devising a plan. The results of this study were (1) constraints experienced by the respondents based on Polya steps were in understanding the problem and devising a plan; (2) In understanding the problem, the respondents experienced difficulties in understanding logarithmic symbols; (3) In devising a plan, they were constrained in choosing the technique to be used so that they used table. The results of this study can help teachers know the constraints of students in drawing logarithmic graphs and determine the appropriate scaffolding for students who experienced the same constraints with the respondents.