We began class by practicing the periodic table quiz. Students must complete this quiz by the end of class on Monday, December 5th. We then discussed atomic mass and atomic number for any element on the periodic table. I used an IWB flipchart to demonstrate these ideas. Students then worked on page 3-14, and we went over it using another flipchart. We watched a http://www.brainpop.com/ video on isotopes and took the quiz that followed. Two of the classes were also able to complete worksheet 3-15, but three of the classes ran out of time.
No homework was assigned, and the Chapter 3 test will be on Tuesday, December 6th.
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