Reflection: Adjustments to Practice Moles and Molarity - Section 2: Do Now/Activator

 

In writing the last few lessons, I have had an epiphany. It has been challenging for many of my students to remember and reuse material that they have not seen in a while. This became apparent during the neutralization reaction lessons when students were expected to remember how to balance charges in ionic compounds and balance equations.

So, what if I just never put the material out of sight? I think that what I want to do is bedeck my room with chemistry art. Our school has an internship program in which every one of my juniors has to do a 40-hour internship. They can do that anywhere in the community, but some choose to do it at our school.

I could put out at the beginning of the year that I want an art intern or two. Their job would be to create posters that capture the key learning that happens throughout the year. By putting these posters around the room as we cover the material, students could periodically notice them and I could refer to them. In this way my walls would gradually become a final exam study guide. I am going to try this experiment next year.

This idea does not come out of the blue. I’ve noticed this past year that when student work is on the wall, students often use those work samples to strike up random conversations about chemistry that move their thinking forward. This makes sense to me. In the article How the Brain Learns, Marlene Cimons of the National Science Foundation notes that ““Timing is crucial in learning from the synaptic levels--connections between neurons--to long-time scales, like months and years.” It will be interesting to see regular exposure to the core material of the course will increase student achievement on the final exam.

  It takes time to learn
  Adjustments to Practice: It takes time to learn
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Moles and Molarity

Unit 7: Acids and Bases
Lesson 8 of 12

Objective: Students will be able to use the molarity formula to calculate moles in a solution. Unknown amounts of moles, liters, or molarity can be calculated when the other two are known.

Big Idea: Molarity is a measurement of concentration expressed in moles per liters.

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