Reflection: Complex Tasks Equilibrium and Le Chatelier's Principle - Section 7: Evaluate


Le Chatelier's Principle is a very hard concept to teach.  I feel that this is because it is a phenomenon that occurs at the molecular level, so students cannot see what is happening.  

Because this is a difficult concept I like to check in with students periodically during the lesson to see how they feel that they are doing .  I do this by having students show up their fingers with the scale of 0-5.  0 being, "I am totally lost and not sure what you are doing up there waving your hands around" to 5 being "I am a Le Chatelier's Pro, Bring it on!"

In order to help students with the concept I have found some tools over the years such as the visualizing equilibrium activities and the videos.  However, I feel that I still need to do a better job of showing students the "big picture" from the beginning of the lesson.  I think that next year what I will do is either show them a demo or one of the demo videos at the beginning of classes so that they can better visualize what it means when an equilibrium shifts from the beginning of the lesson. 

  Lesson Evaluation: Le Chatelier's Principle is Difficult to Teach!
  Complex Tasks: Lesson Evaluation: Le Chatelier's Principle is Difficult to Teach!
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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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