Recent Tutoring Session Reviews
"We covered unsaturated, saturated, and supersaturated solutions. We then took notes on how pressure affects equilibrium of gases. We went over situations where he had to determine which way the equilibrium would shift with certain increases of pressures to the products and/or reactants. We also took notes on how temperature affects the equilibrium of gases and how temperature affects the solubility of solids. We defined molarity and molality and continued to go through practice problems involving both. We also defined solvents and solutes and continued to go through practice problems relating the two. Then he completed a practice assignment that was given to him. I used scaffolding techniques to promote metacognition as I believe when one is able to think about their own thinking, they can conceptually understand the material. I did note his last test score."
"Today's session involved an intro and overview of chapter 11 material (Gases and the Ideal Gas Law). My goal with this student is to develop a weekly study schedule that breaks the material down into smaller lessons so that she does not find herself learning new material the night before weekly exams. Specific topics covered included: Pressure, Units of Pressure, Standard Temp/ Pressure, Dalton's Law, Boyle's Law, Charles' Law, Gay-Lussac's Law, the Combined Gas Law, Avogadro's Law, and the Ideal Gas Law. Emphasis was made on the relative ease of understanding all of these laws by simply utilizing the Ideal Gas Law, and that she should avoid memorizing all the laws but instead just understand the applications of PV=nRT. Additionally, I created a quick study sheet that included topic bullet points along with corresponding practice problems. To further her understanding of the material for next week's exam, I assigned readings 11.1-11.3 along with approximately 20 practice problems from her textbook. Based on what homework her teacher provides in the following days, we will review that material accordingly to best prepare her for the chapter 11 exam. Additionally, the student noted she felt confident about her previous exam (chapter 10). I believe that these weekly exam grades will continue to rise if she is willing to set aside 30-45 minutes a day to complete a couple practice problems here and there."
"This was the first two hour session that I've had with this student, and it was extremely productive. We went through her textbook to look at topics that she can expect to see on the chemistry subject SAT test that she will take in May. We went in order from the beginning of the book to try and cover material that she had gone over in class, but this time with more depth. For instance, when we covered atomic theory at the beginning of our sessions together, we went over things like the Bohr model of the atom, but we didn't go over quantum numbers. As we go through this book we will cover material much more thoroughly than she would have done so in class. Atomic numbers can describe the states of each electron that exists in an atom. There are four different numbers: n, l, mL, mS. They all have rules of what they can equal: The principal quantum number n=1,2,3,... where the number is the orbital that the electron is in. If the electron is in the 1s shell, then n =1. If the electron is in the 3p shell then n=3. The angular quantum number l = 1, 2, 3, ..., n-1 corresponds to which type of orbital the electron resides in. l=0 corresponds to an s orbital, l=1 corresponds to a p orbital and so on. The magnetic quantum number mL= -l to l describes the specific electron pair within the orbital described by l. In the s shell there is only one orbital, where two electrons are housed. In the p shell there are three electron pairs, described by mL= -1, 0, 1, where -1 is the left pair, 0 is the center pair, and 1 is the right pair. The spin quantum number ms= -_ or +_ describes if the electron has an up or a down spin. The other very large topic that we went over was radiation. Radiation is the breaking down of a particle's nucleus which sends one of three particles away from the atom: 1) alpha particle (a helium isotope) which is a helium atom with two extra neutrons 2) beta particle (a stream of electrons) 3) gamma ray (a high energy wave which can travel very far) We discussed these particles, and looked at examples of chemical reactions which produced these particles. We also looked at the history of radiation. We discussed many other topics such as particle size, atomic radius, as well as the history of the periodic table. This brought us to the end of the session."