Today in class the students finished using the informational texts from yesterday to complete their lab questions.
Today we practiced the valuable skill of using a nonfiction text to gather information and then use it to answer questions. The students were given two articles related to the Bohr model, and used close reading strategies (note-taking, highlighting, etc.) to find important information and concepts contained in the article that they would be able to use to answer lab questions. After annotating the articles, the students began answer the lab questions that they will finish tomorrow.
Today in class students performed flame tests to try and identify unknown solutions by comparing the light it emits when heated in a bunsen burner to known solutions. During Monday's class we will analyze the data further and work to answer the analysis questions.
HW: None Today in class the students continued working in their groups to discover properties of light and how it relates to matter and the atom.
HW: None! Today in class we briefly discussed the classess current knowledge of light and discussed a few definitions that the students need to know. To move deeper into the concept of light, energy, and its relationship to the atom, we will be working on a POGIL activity (Project-oriented group-inquiry learning).
In this design, each student will have a specialized role within their team to help increase the effectiveness of their team/group as a learning unit and to push themselves deeper into discovering new ideas. HW: Periodic Table Quiz of Friday -- Make sure all notes/labeling and the periodic table packet is completed by then Today in class the students continued labeling their periodic tables to show important families and groupings of elements. In addition, they were given a packet of extra information about the families themselves and properties of the groups. They were to use this information to ensure that their periodic table is fully annotated and ready to use on their quiz Friday.
HW: Periodic Table "Quiz" Friday -- Complete the packet by then Today in class the students took a brief quiz on mole conversions and being able to relate atoms, mass, and mole quantities. Afterwards, the students began identifying important information on their periodic tables. While students worked to annotate their periodic tables, I began working with smaller groups on how to safely light a bunsen burner in preparation for our lab next week.
HW: Spend an hour doing something outdoors this weekend! Today in class, students practiced using Avogadro's number and Molar mass to convert between mass, moles, and the number of atoms present in a sample. Tomorrow, we will have a brief quiz on this skill, and then we will be moving on to the organization of the periodic table.
HW: Study for Mole Conversions mini-quiz tomorrow! Today in class we had a short mini-quiz on using the weighted average formula to find the average atomic mass of an element and to find the final grade in a class given the grades a student receives and the assignments weight.
Tomorrow we will continue to practice mole conversions: using Avogadro's number and molar mass to go back and forth between masses and quantities of atoms. Today is class we learned about using the mole as a counting number to represent 602 sextillion objects (6.02 x 10^23). We discussed how we use the mole to describe vast amounts of atoms or molecules present in a substance or a reaction. After observing 1 mole of atoms of different elements students made the observation that not all of the containers were equally filled or had the same mass despite having the same number of particles.
This led us to molar mass, and how we can use mass to determine how many atoms are present in a sample. The molar mass or formula mass is equal to the mass of 1 mole of an element. this value can be found from the avg. atomic mass of an element on the periodic table. HW: Study for Weighted Avg. Formula Quiz tomorrow. Practice example below (with the answer to check your work. Find the avg. atomic mass of Calcium: Element Mass (g) %abundance Ca-40 39.9625906 96.941 Ca-42 41.9586176 0.647 Avg. Atomic Mass = 40.1g Ca-43 42.9587662 0.135 Ca-44 43.9554806 2.086 Ca-46 45.953689 0.004 Ca-48 47.952533 0.187 Find the students final average: Category Grade Weight Tests 87 40% Quizzes 88 20% Average Grade: 91% HW 100 10% Classwork 100 10% Labs 93 20% |
Mr. SasséCP Chemistry. Archives
February 2016
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