vela's latest activity
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vela replied to the thread Studying Poor at problem solving -- I'm looking for changes to my approach.Problem solving is definitely its own skill, and like everything else, you have to practice to get good at it. It's pretty easy, for... -
vela reacted to berkeman's post in the thread Studying Poor at problem solving -- I'm looking for changes to my approach with
Like.
Welcome to PF. One thing that helped me a lot in undergrad was to try to work as many problems as I could. That meant that I tried to... -
vela reacted to hmparticle9's post in the thread Understanding how to "tack on" the time wiggle factor with Like.
Yes I did :) After your post it clicked immediately: The Hamiltonian determines how a state evolves in time. I was treating the...
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vela replied to the thread Rethinking Physics Education.I don't know about defining velocity and acceleration, but Knight, for instance, uses what he calls motion diagrams to illustrate...
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vela replied to the thread Understanding how to "tack on" the time wiggle factor.Did you figure it out, @hmparticle9?
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vela replied to the thread Rethinking Physics Education.I too think focusing on the individual steps is misguided. What would be helpful to many students is learning how to read an equation...
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Which one? Besides, I don't think that every single mathematic manipulation has physical meaning. Again, what's the physical meaning of...
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vela replied to the thread Rethinking Physics Education.Yeah, nothing more annoying than the student who can't be bothered to even try. I do, however, generally find that most of my STEM...
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I don't know what you think the answer is, but my answer is not much. What you describe is rescaling. If ##a=b## this is shorthand hand...
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vela replied to the thread Studying Need Help with Study Approach.I think the reason a lot of students prefer watching videos over reading a textbook is that watching videos is a fairly passive...
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vela replied to the thread Understanding how to "tack on" the time wiggle factor.What is the Hamiltonian of the system? The Hamiltonian determines how a state evolves in time. I don’t think ##\hat A## is the same as...
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vela replied to the thread Suggestions for HS geometry book (proofs).My guess is that you're not recognizing the subtleties the proofs are addressing. In the example you provided, for instance, the...
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vela reacted to hmparticle9's post in the thread The flux through a cylinder from a charge at the origin with Like.
From looking at a diagram, the only component we need to worry about is the component of the flux in the ##z##-direction. The other...
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vela reacted to mathwonk's post in the thread Admissions Am I cooked for graduate school? with Like.
I don't have enough information to say. one student studies hard all the time, attends class faithfully, has problems grasping the...
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vela reacted to hmparticle9's post in the thread The flux through a cylinder from a charge at the origin with Like.
Okay. I have figured out that we need a sphere with radius ##\sqrt{2}## for us to fit my cylinder snug. Gauss's law says that the flux...