I have a science fair at my school where students complete this project. It can simply be edited to be a two day lesson instead. The students will be doing background research on common Genetics terms, choosing a set of parents (12 options), filling out punnet squares to find ratios for potential offspring, choosing offspring's traits with a roll of the dice, and creating that offspring. To modify you can have them draw the offspring instead of build. Directions for a tri-fold board are also included.