## Reflection: Routines and Procedures Can You Hear Me Now? - Section 5: Best Sound Insulation Bar Graph

Students used the entire hour to complete their observations and writing results and conclusion. Since students have turned in their lab, I will tally the top sound insulators, for us to discuss later.

The kiddos reasoned we would not learn much from a bar graph because teams did not choose the same 4 materials to test. They discussed that there could be a material that is the better insulator, but maybe not all the teams chose it as one of the 4 materials to test.

So the students wanted to choose the top 4 materials as a class and with partners test the materials. Each material would be tested 12 times by 12 teams. We discussed how scientists will repeat the same lab to check that their results remain consistent.

I set the materials out for the lab and during students' free time, they tested and recorded their db results for the material on a chart. I realized that I could use their data to review with the kiddos how to set up a line plot.

During math time, we looked at one of previous line plots to review the line plot elements.  Then I divided my students into 4 groups, one group/material. I gave each student in the group the dB data for the identified material. Students collaborated with their group and each one created a line plot in their math notebook.

Plotting the dB on the line plots provided an authentic way for us to learn how line plots help us organize data to discover range and mode for the dB for each material.

Routines and Procedures: Out of Time / Making a Plot Line

# Can You Hear Me Now?

Unit 5: Unit 5 Matter and Its Interactions
Lesson 9 of 11

## Big Idea: Material engineers learn about sound waves as they explore the properties of different materials that do the best job of absorbing sound.

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90 minutes

### Renee Hoover

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