Day 71: Creating and Analyzing Waves

20150123_132418 20150123_132437 20150127_095434

Science 8 – Grade 8 science is starting a unit on waves and optics.  One of the first activities we covered was drawing a traverse wave using a vibrating marker pen drawing against a file folder that is moved horizontally.  I think the students really appreciated this lab, as it was quite surprising to them that a curved wave shape could be created by two perpendicular movements.  It also reinforced the concept of particles moving in one place (the marker) while a wave seemed to move along.

One extremely pleasing part of the lesson was when the student in the yellow volunteered to go first in presenting his whiteboard.  This student is interested in science but is shy at times, and maybe even lacks a bit of confidence. However, he was randomly put in a group where he became a natural fit for leading the group.  Not only did he show leadership in developing the group’s solution, but his willingness to share with the class was great to see.

Three excellent gifs are also used in this lesson:

water

Lwave

Twave

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