Recent Tutoring Session Reviews
"Today we discussed the an old article on temperature in the context of evolution (mutation and natural selection). Our third session is scheduled for tomorrow morning to discuss density dependent and independent conditions, and how mutation and selection factor into these in terms of evolutionary entropy."
"Worked on ecological examples of delayed/reduced reproductive effort, long-term ramifications for evolution in organisms in environments of scarcity, island dwarfism, organismal size vs. metabolism, metabolic investments and energy flow, and finally some endocrinology."
"We worked on transient and steady state responses to circuits with capacitors and inductors. Went over establishing first order differential equation and solving it by finding the homogeneous and the forced solutions. Used initial and steady state conditions to find the linear combination coefficients of the final solution. Established rules for solving a first order circuit without writing down and solving the entire differential equation. Overall, the student was absorbing and understanding the reasoning. He's very alert and shows interest and evidence that he actually pays attention to what I do on the board. As always, it's a privilege to work with and help this student."
"We covered how to determine the ground state energy of the harmonic oscillator using the variational principle and an experimental function, Fourier synthesis, and whether or not the angular momentum operators commute."
"We spent some time going over the homework problem that we discussed on Thursday, during which I clarified the approach to take when writing the magnetic field at the center of a loop of wire. We made sure to clearly notice the difference in notation depending on geometry used. The student has improved in getting a feel for knowing where different vectors used in this approach are located and what they stand for. The latter part of the session was spent on applying Ampere's Law."
"His homework was to read Silent Spring by Rachel Carson and to summarize the in-class presentation on the Salton Sea. We focused on the latter, and discussed the salinity, fish dying, and the effect this is having on the ecosystem. We also did SAT Biology review questions from the learning tools."
"We covered RLC circuit theory today. We spent most of the time working on one problem so that the student could understand the idea behind solving these problems. The session went quite well."
"The main focus of this session was identifying different intermolecular forces (IMFs), how they vary in strength, and ultimately how they affect the physical properties at the macro scale. I did not observe any notes or grades; I was able to go through the practice problems with him that were found in the lecture slides. These concepts were not too difficult so he was not having a hard time grasping the ideas. What also helped was that this was a continuation of the previous session's concepts (i.e. electronegativity and dipoles). I did not leave the student with extra practice and I have no concerns from this session."
"Last night we went over the post lab for active RC series circuit. And then worked on the prelab for active RLC series circuit. Specifically, from applied voltage and frequency, used resistance, capacitance and inductance, calculated the capacitive reactance, the inductive reactance, the phasor, the total reactance, the current and the phase angle of the net reactance. The student had worked the answers out in advance, but there were a few calculative errors and we fixed them."
"We went over a few practice problems for the final today. We focused on multi-step questions that dealt with ideas covered in lab. For instance, we tried to put together balancing re-dox equations with interpreting spectroscopy graphs. We also went over drawing molecular orbital diagrams."
"We worked on balancing redox reactions (reactions in acids and bases) and determining the oxidizing agent/reducing agent based on comparing the reducing potentials. We also reviewed entropy and determining if a reactions entropy is increasing or decreasing. We also reviewed determining the oxidation numbers."
"We conducted a continuation of yesterday's session, preparing the student for her upcoming end-of-term exam on the subjects of work and energy. In particular, the problems today focused on the relationship between two definitions of work (Fd and Delta-KE) and how work is related for raising and lowering objects to a change in potential energy. She seemed to have a pretty good handle on the concepts by the time we were done."