For this lesson I used the KWL format presented by DR. Dana in our SCIED workshop. In the beginning of the lesson I asked the students what they already knew about waves and light. This method was very effective because as it turns out the students knew a great deal more than I thought they did. As a result we did not have to discuss the basic details that they already knew and probably would have been bored with. After creating this chart we constructed the W column to determine what we wanted to learn about light, waves and colors. This provided the children something to focus their observations on when they were doing the experiment.

After this chart was filled out I explained the purpose of the experiment and what we were going to learn about. I had a child read from the paper which explained what interference was but it was not loud enough for the class to hear. This resulted in me having to read it over but it was an attempt to get the class involved further. In the future I may call on an individual with a loud voice or have them face the class so that everyone can hear. Another aspect that I adjusted was the structure once we were outside. In my plan I had no plan as to how the children would dip the bubbles and so it started out in a jumble. I remedied this by splitting the groups into two and then having the children form a line. This resulted in better bubbles, more order, and better observations because it was less hectic.

The discussion following the experiment was very interesting and successful. The students were very eager to share their findings and felt free to do so. I feel that this was a success because with a few exceptions everyone raised their hands and waited to be called on. In addition they felt safe to present their ideas because we had talked about how every idea is valid.