Table 4.

Design of learning activity 3.

Indigenous artifacts	Description of activity	Conjecture of student learning
Padasan	The teacher poses an example of a sphere and truncated sphere in daily life through the display on the screen. The teacher refers to the padasan that indigenous people usually use for sacred practices, such as washing their hands and ablutions.	Some students will imagine the form of a sphere and truncated sphere based on the situation.
	Teachers ask students to look for another sphere and truncated sphere example.	Some students will look for the other sphere and truncated sphere on the daily life.