My son and I looked at a ton of engineering roadmaps as he was undecided in high school considering data science or other non-engineering STEM major. Calculus and physics were by far the most important prerequisites to take freshman year if you wanted to keep engineering on the table with chemistry a close runner up. If you take those classes freshman year, you’ll most likely be able to graduate in 4 years with any flavor of engineering. He proved it by switching from mechanical to chemical to electrical by mid sophomore year and still graduated in 4 years.
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