This poster describes using computer simulation software to enhance student learning in a graduate crop modeling course. The course introduced students to modeling crop growth and development. Software programs like CSMP, BASIC, and STELLA were used to allow students to develop their own crop models through hands-on experience for assignments. This enhanced student understanding of crop physiology and the relationship between crops and the environment. The poster compares the advantages and disadvantages of the different software programs and provides an example of the modeling code and outputs. It concludes that using simulation software improved active learning for students.