Cells & Homeostasis: Extreme Environments

Today’s lesson focused on bridging student learning about extremophiles and our field trip set for this coming Monday.  We set our sights on defining “extreme environments”, learning about what makes an environment extreme and also about how some organisms are specially adapted to live in such environments.  The PowerPoint introduced students to the concept of a Bell-Shaped Curve, challenged them to articulate their own ideas about what constitutes extreme, and then provided an opportunity for discussion around how statisticians define “normal” and whether our own perspective about whether something is extreme necessarily involves judging an individual who looks or acts extreme.  We concluded the lesson after slide 26 and will complete the slide deck tomorrow.

Matter, Atomic Structure, and Bonding: Atomic Number and Atomic Mass

We continued our study of the atom by learning about the relationship between atomic number and atomic mass.  Before launching into the Lesson 12 PowerPoint, we paused and reviewed student questions about the Lesson 11 Worksheet.  We focused primarily on questions 3 and 5 from the worksheet, with responses drawn on the white board (pictured below, with the answer for question 3 on the left side of the board and question 5 on the right).

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The questions nicely led into the Lesson 12 PowerPoint, after which students had the remainder of the class period to complete the Lesson 12 Worksheet.  Aside from reviewing Lesson 12 in the textbook and reading Lesson 13 in preparation for class tomorrow, there was no additional homework assigned for this evening.