Reflection: Complex Tasks Reactions of Metals Lab - Section 3: Student Lab Work


As I alluded to in my pre-lab reflection, the lab didn't go as well as I would have liked.  After consulting with my literacy coach, I would make the following changes:

  1. Make the Lewis Dot diagrams, cation/anion predictions, and pre-reaction observations all part of the in class lab the day before.
  2. Have students sketch out their actions for each step of the lab.
  3. Rename the parts by letter, so as to differentiate from the numbered steps in each section.

We believe that these steps would both prepare the students better for what they are doing in lab, but also make the connection to the content more explicit for students prior to the lab.  By making the pre-reaction observations ahead of time, we could reduce time searching for components in the lab box because each student would have descriptions of the chemicals in addition to the labels. 

This change would also provide the chance to work on student observation skills as a whole class, which would make for valuable peer to peer and teacher to student modeling of this crucial science skill.

  Structuring Lab
  Complex Tasks: Structuring Lab
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Reactions of Metals Lab

Unit 2: Periodic Trends and Bonding
Lesson 7 of 13

Objective: SWBAT work safely in lab to observe metals and nonmetals becoming ionic compounds

Big Idea: Chemical reactions demonstrate that metals tend to lose electrons to become stable cations while nonmetals tend to gain electrons to become stable anions.

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metals lab setup
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