Recent Tutoring Session Reviews
"Today we began going over continuous distribution probabilities. We spent the majority of the session working through the lecture notes and then worked through a couple of the student's homework problems. Given the primary continuous distribution is a normal distribution, we spent the majority of our time on that subject. We went over a standard normal distribution and its properties. Then we worked through how to use a standard normal probability table. Finally we went over how to transform a given normal distribution into a standard normal (i.e. find the z value) in order to use the chart to find a probability. By the end of our session she seemed to be grasping the general concept. She understands complementary probabilities; we just have to re-enforce when to use the complement rather than the given. We did make significant progress in clarifying these concepts and I think with more practice she will be fine. She is going to work through the final homework problem and we will go over it and any additional questions she has in our next session."
"I met with this student on March 1st for our first session. Her next test is on 3/5 and it will cover aldehydes and ketones. At our meeting, we first talked about what she is struggling with and the structure of the class. She says that, while she pretty much understands the reactions that they go over in class, the structure of the test tripped her up (i.e. predict the product when given the reactant; predict the reactants when given the product). I explained to her some good studying methods that may work well for her, including extensive repetition of different types of the same problem, doing practice "work backwards" problems, making sure to have a good grasp of the science behind the reactions, and memorizing when necessary. When she asked, I let her know that I made it successfully through Orgo 2 by memorizing all of the reactions so that I was prepared with everything come test time. She seemed to think that might help her as well. Next, we went through the basic science behind aldehydes and ketones and how they react. We talked about how aldehydes are more reactive than ketones because of 1) electron distribution and 2) steric hindrance. She showed a good grasp of both of these concepts. Next, we talked about specific reactions. We covered the Wittig reaction in great detail, and I gave her a couple of practice problems which she was able to complete successfully. Next, we covered the Wolff-Kishner reaction in great detail and the student worked through two practice problems. The latter reaction has many complicated steps so I advised her to continue doing practice problems until she could recall all of the steps from memory. At this point, we had reached the end of our session. She will complete the practice test and practice problems that her professor provided by Monday night, and will talk to her professor in office hours on Tuesday. We will additionally review these problems and do some more review and practice on Tuesday night to answer all of her questions before her exam on Wednesday."
"Covered a lab on finding the molecular weight of a substance by examination of its freezing point depression in a solvent of know freezing/ melting point. Data was examined for errors and a few questions answered at the end of the report."
"The student and I discussed thermodynamics: distinguishing between system and surrounding, identifying energy in terms of work or heat, understanding the first law of thermodynamics, determining the change in enthalpy and whether a reaction was endothermic or exothermic, calculating the amount of energy gained/lost by the reaction using stoichiometry, understanding calorimetry and its application in measuring heat exchange of a reaction, and defining standard enthalpy of formation and calculating it. She completed one page of homework."
"The student and I finished going over all of her old tests. We have finished our tutoring for the semester."
"The student and I finished her homework assignment today on molecular orbitals and VSEPR theory. Her understanding of MO's and bond order has increased, for sure. We lastly started reviewing types of reactions including redox, precipitation, and acid/base reactions. We also briefly started reviewing balancing redox reactions with special attention to oxidation numbers and OIL RIG. We plan to meet again tomorrow to continue reviewing."