Recent Tutoring Session Reviews
"We discussed different forms of energy such as potential, gravitational, and kinematic energies. She is building a self propelled car so we discussed objects that can have potential energy which can be transformed into kinetic energy. We also discussed how mass and friction would effect the movement of the car. Lastly, we worked on force of gravity problems."
"The student defined and identified ionic, covalent, and metallic bonds for a school worksheet after reading and re-reading parts of Chapter 1 of his new science textbook. He also matched and listed the characteristics for each bond. Next, we read through examples of electron-dot diagrams, and he created electron-dot diagrams for the elements listed on the worksheet. He also stated how many valence electrons were required to fill the outer shell of each element. I showed him that for most of the groups on the periodic table, he could subtract ten to find the number of valence electrons in the outer shell. Lastly, he completed a fill-in-the-blank review using context clues and searching for key words I pointed out for him. By the end of the session, he understood which bonds used metals, nonmetals, or both as well as how to create an electron-dot diagram. He also realized "the force of attraction..." meant 'bond' of some sort."
"During this session we mostly spent time covering intermolecular forces. We looked at how to compare them to each other and how to rank boiling points for various compounds based on the intermolecular forces that would be present. We also looked at how this would affect the vapor pressure of these compounds. We also spent some time covering solutions and what is and how to find molality, molarity, percent weight, and mole fractions. We ended the session by reviewing how to use the ideal gas law to find molecular mass for an unknown compound given temperature, pressure, volume, and the mass of the gas inside."
"Tonight, the student and I reviewed his assignment that was consulting DOSITS (Discovery of Sounds in the Sea) for a two-paragraph assignment that looks at the differences between sound production and reception in humans versus dolphins and whales. We went through a bit of the science together and talked through the answers. He did the write up on his own."
"The student took an exam last week which covered the material we discussed previously - specifically, momentum and impulse. He said he felt quite confident about his performance, which is great! In today's session we covered kinetic energy, potential energy (gravitational and spring), work, conservative forces, and nonconservative forces. He hasn't covered much of this material in his lecture yet, but after being introduced to the relevant equations and concepts, he was able to work through each book problem with solid logical reasoning."
"Continuing with chemical reactions, the student and I explored solubility of compounds in water and learned to write net ionic equation. We started with reaction descriptions, converted them to chemical reactions, balanced them, identified the type of reaction, determined the phase of each compound, re-wrote aqueous species as their elemental cation and anion, canceled out spectator ions, and generated the net ionic equations. I then introduced stoichiometry to her: converting from mole to number of particles, from mole to mass, and from mole to volume at standard temperature and pressure. We will discuss these concepts in depth in the upcoming sessions."