Science Education News (SEN) Journal 2018 Science Education News Volume 67 Number 4 | Page 48

YEARS 7–12 IDEAS ARTICLES FOR THE CLASSROOM Ecological Simulation Game (continued) The rules of the game and equipment needed (minimal) are found in the lesson plan below. Figure 6: Initial Deaths versus those who Survived. Figure 4: Top of the Lesson plan for the game. As you discuss this with the class, they will very quickly grasp that equal numbers of consumers at each level of the food chain means an unsustainable ecosystem. Have the students suggest sustainable numbers for each level. Play a second round. Repeat the whiteboard display. Another round may be needed to perfect the pyramid shape. If time permits, play a round where some students’ tag means death or disease. It is best if other students do not initially know who the death and disease carriers are. It is preferable to debrief after each round in a classroom close to where the game is played. Alternatively, taking a whiteboard outside to conduct the debrief has also worked well in our experience. Figure 5: Some of the rules of the game The only issue I have had with this game is students asking me to play it regularly for the rest of the year! Students catch their “prey” by tagging students who have the role of a lower order consumer. When a student is tagged they need to hand over a ribbon which represents a “life”. In round 1 of the game, students will expect there to be equal numbers of primary, secondary and tertiary consumers. Students are assigned a group and the tagging begins. After about 5 minutes call students together to see who is still “alive”. See above for the rules about this. Students can the put a mark or a magnetic strip on a whiteboard to indicate if they are still alive or have been killed. Figure 7: Final Survival numbers typical of a sustainable ecosystem 48 SCIENCE EDUCATIONAL NEWS VOL 67 NO 4