Recent Tutoring Session Reviews
"During this session we focused on electrical circuits. We started off discussing resistance and resistors and how to find the equivalent resistance of a system of resistors. For more complicated resistors we discussed how sometimes redrawing the diagram in a more clear fashion can help as well as working in steps. We also discussed what stays constant in the different scenarios, that for resistors in series the current is the same across all resistors and for resistors in parallel it is the voltage that is the constant across them. We moved on to Kirchhoff's rules and how to figure out how many equations you need and how to set up the junction and loop equations. We ended the session looking at capacitors and how they behave in series and parallel and how to find the equivalent capacitance, or the capacitance of an unknown capacitor given the equivalent capacitance and all the other capacitors' capacitances."
"The student has 20 checks out of his 34 that he needs to get an A in the class. This is his last full week for physics. This session, we prepared several different sections of physics in order to be able to receive as many checks as he can this week. We covered kinetic and potential energy (law of conservation of energy), compound circuits, and voltage sources."
"We covered the concept of buoyancy, specifically involving a question with finding a percent of an iceberg submerged in water with only density of water and ice given. We also covered electric fields and forces and taught the concept of keeping the answer in vector notation (x hat, y hat etc.). We solved a few examples he had from homework and class. I also provided him with my own examples. We went ahead and also covered some concepts with electric circuits -- specifically Kirchhoff's Voltage Law, Kirchhoff's Current Law, resistors in series and parallel, and worked some simple examples highlighting each use. The student understood mostly all of what I was saying, and did not seem to struggle with concepts. Naturally more session will be needed to gauge progress. He showed that he understood the material and new concepts. I involved him with answering a few simple circuit questions, which he answered correctly. Some studying skills I taught in the session: the concept of keeping vectors in vector notation, and always writing out the formulas separately and clearly, as well as keeping the same conventions and notations. Also I showed the student to leave work in symbolic form until the end of the problem, because otherwise, rounding (substituting for decimal numbers) will result in a greater error if done from the beginning. I also expressed how important it is to write initial conditions, or givens, at the top of the page to always refer back to."