Two students agree that working in groups is better than individual work. One student, Cameron Devers, says that “work gets done faster in groups.” Another student, Amena Alelg, thinks that working in a group helps her solve problems she is not capable of. He says that “working in a group is more interesting and helps to keep physics concepts in mind”. Furthermore, both students agreed that in most cases, not all students participate in solving worksheet problems and there is one person who takes responsibility for the entire group task. Regarding the idea of ​​assigning roles, they think that this would be useful and would ensure the full participation of all members. Additionally, Devers said the worksheet usually doesn't help much in understanding concepts and being more effective; must contain problems consistent with the class curriculum. On the other hand, Alelg believes that this worksheet is ineffective because it lacks instructions. The students' statement that the assignment of roles and instructions should be written on the worksheet to make it clear and effective ensure that this worksheet is not the best and should be redesigned to achieve its purpose