I think a successful science classroom looks like students asking questions and using multiple methods of investigation to gather evidence that supports a claim (or an answer to the question). It looks like students reasoning and developing evidence-based arguments to support an explanation of a phenomenon.
The role of the teacher is to facilitate and guide students as they reason together. Students interact with each other to socially construct explanations for phenomena, refining and revising their ideas (mental models) based on peer feedback. Students make their thinking visible to others and themselves as they are asked to communicate their ideas (often including models).
I think computers are a powerful tool for developing and using models to gather measurable evidence to support explanations of phenomena that involve complex systems.