SmartGraphs help students understand graphs. In African Lions, make sense of exponential growth models. Use graphs to discover trends in the growth and decline of a lion population in Tanzania. Compare your predictions to real data and learn the fate of a special population of big cats.African Lions was designed for high school and community college students studying biology and ecology. KEY FEATURES- Hints guide your work- Easy-to-use interface- No third-party advertising- No in-app purchases- Free of chargeTEACHER RESOURCESLesson plan and student assessment documents are available online. Please see http://short.concord.org/26For additional science, math and engineering activities, visit us at concord.org, like us on Facebook: facebook.com/concordconsortium and follow us on Twitter: twitter.com/concorddotorgFor more information: concord.org/smartgraphsThis material is based upon work supported by the National Science Foundation under Grant No. DRL-0918522. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.