I agree with many here. Currently in science, we conduct traditional labs with hypothesis first, and then run the lab. Usually we only have time for 1-3 trials depending on time and complexity. Often, I will gather each groups' data to illustrate multiple trials. With computational models, we can spend a day or two developing the model, and then a day running trials and collecting data. I think students will also be more engaged using computers, building the model, and using it as a tool.