When groups of students out to present the study results, the students watch the video story cycle in ecosystem and students shared answers to questions on the activities of the cycle 1 in ecosystems.
When all the students to present the results of the study is complete. Students watch the video. The cycle of the ecosystem And students together to answer questions about the activities of the first cycle of nutrients in the ecosystem.
When all the students out the presentation of the results of the study group. Let students watch the video about the material cycle in ecosystem And students together to answer in the leaves 1 activity on cycle of compounds in the ecosystem.