Step 1: Figure out which version of this activity you’ll do.
In this interactive simulation, students will discover how natural selection affects a group of tree-climbing green lizards when their island is invaded by hungry brown lizards.
If you have a group of 15 or more, you can use the step-by-step version of the video above.
If you have a smaller group, you need to use the small group version, which can be used by one student or a group of up to 15 students. If you are using the small group version, print out these instructions for activity prep and the activity. Step-by-step instructions are on the print-out.
Step 2: Print out materials.
Use the chart below to figure out how many copies of each file to print. Depending on your class size, you may have some extra copies, but you shouldn’t run short.
Step 3: Cut Baby Lizard cards.
Cut each Baby Lizard page in half to make two Baby Lizard cards.