This video provides an introductory exponential growth question. It explains how to identify the growth rate, initial value, and use the function to determine the population in the future.
This is for a 100 minute lesson, but there are two tasks which could be split over two 50 min lessons.
The Timeline Poster is one activity and the Darwin text based activity is the second activity.
The text may be too textual for low ability or low reading age students, my low reading age group had an LSA and they were ACE!