Abstract:
This study aimed to describe students' difficulties in the conjecturing process of
block paving problems. The subjects used in study were 32 of 8th grade students of Junior
High School. The data were collected using Block Paving Problems (BPP) and interviews.
Data collection procedures consisted of two stages. The first stage was the researchers had the
student solved BPP while think aloud. The second stage is task-based interview to explore
information needed to confirm from the results of think aloud. The result of study revealed that
1) difficulty in interpreting the pattern of , 2) The difficulty in finding and predicting the next
pattern based on regularity, 3) The difficulty in finding and predicting the next pattern 4) The
difficulty in Forming Pattern of .
