Reflection: Rigor Equilibrium and Le Chatelier's Principle - Section 2: Engage Part I


With my first class of the day I thought that students would find this activity easy as that they had done something similar with the first lesson of the unit; however this was not the case.  As I began to explain the activity to students and how each student would be in charge of either reactants or products and how they would be exchanging cards/flipping cards over I got a lot of confused looks. Also as I had them start the activity many of the groups were shouting out questions and shooting their hands up.  Therefore, I realized that this activity should be done with me modeling every step. 

I did this by directing the reactants to first perform their math, the products to perform theirs, and then to switch.  Each time I wrote down answers using the document camera so that students could follow along.  This is a movie of me doing this. 

Overall, the activity went much smoother with my modeling at the front of the class.

  Rigor: Confusing for Students, so did as a whole class activity
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Equilibrium and Le Chatelier's Principle

Unit 8: Unit 9: Reaction Rates and Equilibrium
Lesson 3 of 6

Objective: Students will be able to define chemical equilibrium and use Le Chatelier's Principle to predict how changes in pressure, concentration, and temperature affect systems in equilibrium through doing an activity, taking notes, watching videos, and performing practice questions.

Big Idea: Equilibrium occurs when the rates of the forward and reverse reactions are equal. Le Chatelier's Principle can be used to predict how changes in concentration, pressure, and heat affect these equilibrium systems.

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