Recent Tutoring Session Reviews
"We went over electron configuration in preparation for the student's test. After going through the review sheet, I noticed that he was still weak on identifying the correct orbitals and explaining periodic trends. I spent extra time explaining these concepts to him and made sure he was able to summarize them back to me in his own words."
"Today, we went over a lab involving the activities of metals. By placing solid metals into metal ion solutions, we could figure out the activity series by observing reactions. This gave us many opportunities to discuss the uses of redox reactions and how they happen."
"We reviewed electrostatics for the student's AP final exam. We covered Coulomb's law, and briefly covered electric fields. We started out with simple examples where the charges are distributed along a single axis. Then I demonstrated how Coulomb's law could be used to find forces and/or fields between two charges distributed in the x-y plane. The coordinates of the charges can be used to set up a right triangle, and then the right triangle can be used to compute the distance between the charges using the Pythagorean theorem. Once the distance is known, we can plug this directly into Coulomb's law without having to worry about vectors. When 3 or more charges distributed in the x-y plane, computing the net force on one of the charge will require the use of vectors if the charges are not distributed along a single axis. Trigonometry is used to write expressions for the forces from each charge, the net force vector is then computed by adding corresponding components."
"Today I was very happy to find out that the student earned a good grade on her nuclear chemistry test! Great job! Our primary focus for today was to review her material regarding half lives and the mathematics involved. I found that she had an issue with her algebra, so I suggested she continue to study on her own."
"Tonight we focused on math, continuing with trigonometry and focusing on translations of trig functions. The student was able to understand what parts of a function identified horizontal and vertical shifts in the curves, but he was still struggling with correctly drawing the base sine, cosine and tangent curves because he does not have the unit circle memorized yet. As a result, at the end of the session, I worked for 20-30 minutes with him on the unit circle and quizzing him on correctly telling me what sin, cos and tan at a given value of theta was equal to. I told him to keep studying the unit circle as I will quiz him and work with him further in our next session this week."
"In this session we covered echinoderms. We reviewed their anatomy, different classes, structure, and ecology. The student did very well on this, and although she was a little rusty with some of the material, once she refreshed her memory, a lot of it came back to her."