Reflection: Classroom Setup Conducting the Experiment - Section 5: Application


I have 32 students in one class and not enough lab stations with water and electricity to safely and comfortably have every student doing the lab at the same time. Luckily for us, the way that this three-day unit is constructed, combined with the way students work, this seemingly overcrowded situation is not a problem.

Students work at their own pace. Some students finish their experimental design in a timely fashion and are ready to move to conducting the experiment, while others need more time to complete their work and/or to get help with the stoichiometry. This creates a naturally staggered demand for balances and sinks. So, at the beginning end of the lab demand is low because only some students are cleared to do the lab, while at the tail end of the lab these same students have already finished their lab. In this way, students get to work at their own pace and the pressure for everyone to use the materials at the same time is reduced.

  A Staggered Approach
  Classroom Setup: A Staggered Approach
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Conducting the Experiment

Unit 5: Stoichiometry
Lesson 7 of 8

Objective: Students will be able to calculate the mass of carbon dioxide produced from a reaction by subtracting the mass of the products from the mass of the reactants.

Big Idea: Stoichiometry predicts a theoretical yield, but the actual yield may vary based on a number of factors.

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  60 minutes
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