1) Conduct a poll on students' interest: divide the children into 2 groups; one interested in the culture and history of Athens Polis and Sparta; the other group interested in Greek Mythology and Olympus Mythology

2) Brainstorming: let children in each group decide their research topic

3) Midway Report: on research methodology, solutions, schedules, etc. 

4) Teachers offer instructions and resource support

5) Final Presentation: Students grade each other; teachers mostly offer advises, instead of controlling students.