I haven’t applied to classes yet - I started to but am a little confused

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I found out we don’t choose adv sci majors yet cuz they make us cover basics for everything first and we choose a major later in the year (near then end). For eng we actually chose our degree not out major (if that makes sense) since they offer the various engineering degrees as individual degrees. Kind of like choosing our pattern of study.
I’m probably going to use myplan to figure out what I need for term 1. Checking the handbook for renewable eng. I only need 3 courses in term 1 for it, not 4 - but this may be different if you’re doing mech. Probably best to check the handbook. However, I was talking to someone who went to UNSW and they said it’s not required to follow the subjects given in the handbook specifically in that order as long as we cover them at some point as they may be prerequisites for higher courses required later - so I guess it gives us some flexibility in that sense.