Recent Tutoring Session Reviews
"We covered the Unit Circle, finding radian and degree measures, quadratic functions, finding a function based on description, and quadratic formula."
"Today we reviewed more of the practice test material. It was the last day of going over the material more generally. From here we will focus a bit more on the areas that he has been struggling with more as well as intermixing more general review."
"We covered trig identities and plotting trig functions. We went over old tests to improve areas of struggle."
"The student and I covered vectors and how trigonometry applies to them. We used the laws of sines and cosines and talked about when and when they aren't used. He is doing very well!"
"The student and I worked exclusively on precalculus. He had a quiz/ test coming up the next day, so most of the time was spent reviewing for it -- in greatest part trigonometry, plus some review of geometric sequences and series. For trigonometry, we worked on evaluating sin, cos, tan (and the inverses) in different combinations for common angles (<90 deg). We focused on using the common right angle triangles (45-45-90 and 30-60-90) to work with values for cos, sin and tan without using a calculator, and using radical form. We also worked on and reviewed estimating an angle's position on the unit circle and quadrant given the sign of its cos or sin. Similarly, we spent a helpful amount of time on the tangent -- when it is 0, rather than when it is actually undefined. He works very well and I feel comfortable that he knew the material for this go-around very well. I hope it comes through as he deserves on his assessment."
"We finalized the student's centripetal motion lab. We reviewed his data, plotted it in graphs using Microsoft Excel, and answered the conceptual questions at the end of the lab. We noticed that his theoretical centripetal force was generally quite different from the experimental value, which may have been because the string was not fully horizontal when he swung the mass around in its circular path; I recommended that he consider retaking his data to determine whether that was the cause of the discrepancy. Since all of his data and graphs are in Excel, he can retake the data points quickly and have the Excel spreadsheet do all of his calculations automatically. He generally seemed to be more confident about the centripetal motion concepts by the end, but he would definitely benefit from working through more centripetal force problems and thinking about them more theoretically."