One of my favorite activities this week was one in which the students focused on orbits in relation to the solar system. With as hands-on as the lesson was, i also got the feeling the students thoroughly enjoyed it, as well! While I’d love to say I thought of this activity on my own, I cannot take credit. The activity came from Callella and Marks’ Integrating Science with Reading Instruction, a book full of third and fourth grade science units that involve reading comprehension strategies. I began a unit on the solar system, and wanted students to understand how orbits affect the various planets in our solar system, as well as their relationship to the sun.
This activity had the students tying a piece of string to a chalkboard eraser, and twirling it in the air to see what an orbit looks like. With the use of a ball rolling, it allowed students to see inertia (the force that keeps the planets spinning). It also demonstrated the force of gravity through having them hold a book for exactly one minute, with one hand. Aside from the hands-on activities in this lesson, we discussed (as a whole-group) each element the students were to become familiar with. I was nervous beforehand about only having 7 erasers and one kickball for 22 students. The lesson called for materials for each student, and a tennis ball, specifically. Therefore, I was anxious about having to put the students in small groups.
Turns out, because the students were able to test these things out in small groups, rather than independently, this may have been my best science lesson the entire semester. The elements this really illustrated were 4.1, 5.1, and 5.3, which all had to do with different approaches to learning, and group motivation. Although I was nervous about grouping the students, I am aware that many of my students learn best that way. While there are a few that learn best independently, they were also reached through the opportunity that every child received to conduct each part of the experiment. Visual learners were able to see gravity and inertia in action, kinesthetic learners could make those things happen, and auditory learners could benefit from the discussions following each experiment. Since students were able to start the lesson with what they knew, watch me conduct the experiment, and then build up to connecting that with new concepts, their thought processes really developed.
That was evident in their written and oral responses throughout the unit. As far as group motivation, students were required in the first few weeks of school to sign a “Science Conduct Contract.” That contract stated that inappropriate behaviors would not be tolerated, and result in the student being removed from the lesson, and given an alternate assignment. The students also agreed to complete “less-fun” work, along with all the fun activities held in class. Therefore, between students’ desire to remain in the classroom and participate in the lesson, being able to roll a ball off the desks, and the opportunity to throw an eraser across the room, I never felt as if the students were not engaged. I wish I had taped that lesson!