Middle School: How Can We Hear So Many Different Sounds From Across the Room?
Unit submitted by Next Generation Science Storylines. As indicated by the version number, this middle school unit is in ongoing review and revision and the version posted online at the submitters website may differ from the one that was reviewed and is posted here.
Rating: Example of High Quality NGSS Design
Science Discipline: Physical Science
Awarded the NGSS Design Badge
In this unit, students start by observing a perplexing phenomenon. When a sewing needle taped to a cone, is dragged over the surface of a plastic disc that is spun underneath it, voices and musical notes can be heard coming from it. This leads students to start wondering about other sound related phenomena, which in turn leads to wealth of new questions about 1) what causes different sounds? 2) what is traveling from a sound source to our ears? 3) How do we hear and why do we hear things differently in different places? 4) and how do electronic devices (digital sound sources) produce and detect sounds?
This unit was previously reviewed by the Science PRP and was posted as a "Quality Work in Progress." Using the feedback and suggestions for improvement provided in that first feedback report, the authors revised and resubmitted this unit and it has now earned the highest rating, "Example of High-Quality NGSS Design." Please see the older version of the unit materials here, and the first Science Peer Review Panel Feedback Report here.
NGSS Design Badge
Awarded: Apr 10, 2018
Awarded To:How Can We Hear So Many Different Sounds From Across the Room? [v2.1]
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