Because this activity is an activity that must be integrated from the 4 subjects (science, technology, engineering and mathematics), which takes a lot of learning management activities.
Because this activity is an activity that requires integration of four subjects (science, technology, engineering. And mathematics), which requires a lot of time in the process of learning.
Because of this activity is to integrate the course from 4 (Science, technology, engineering, and Mathematics). Which takes a lot of time in the activities of learning management.