The Making of a Marvel Part 1 is the first lesson of the reproductive unit (six lessons total). Students will begin with making cost analysis lists, as a class, of costs and benefits to asexual and sexual reproduction. The goal of this introductory exercise is to grab attention and illustrate that in sexual reproduction, the value of genetic diversity is well worth the cost. The second phase of the lesson begins with a brief discussion on the anatomy of both male and female reproductive systems. Together as a class we will then label diagrams of both systems. As a final activity in the lesson, students will receive cut out diagrams of both male and female systems. In this hands-on-manipulative students will match the corresponding structure and function labels given to them with the correct part of the diagram. This lesson follows the gradual release method of I do, we do, you do.