Making Predictions about Ramp-Rolling

Resource for Grades K-4

Making Predictions about Ramp-Rolling

Media Type:
Video

Running Time: 2m 23s
Size: 7.1 MB

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Source: WGBH Educational Foundation


Resource Produced by:

WGBH Educational Foundation

Collection Developed by:

WGBH Educational Foundation

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In this video segment from Teaching Elementary Physical Science, teacher Heidi Fessenden guides her first-grade students to make predictions about what might happen when they roll two marbles of different sizes down similar ramps. Fessenden asks students to explain their logic, ensuring that they are really thinking and not just guessing. She wants to help students consider their prior experience and use their knowledge about how things move when making their predictions.

open Background Essay

Science education involves teaching both content and scientific practices to students. So while topical knowledge is central to the understanding of science, skills in the science methods are equally important. To achieve this, students can benefit from real-world activities that provide the opportunity to engage with thoughtful scientific practices.

In the lesson shown in this video, Heidi Fessenden involves her class in a hands-on experiment. She asks her students to monitor and reflect on the behavior of balls as they roll down ramps.

The lesson allows Fessenden to demonstrate principles of motion and force and help her students practice prediction and scientific observation. It also affords her the opportunity to teach scientific concepts and terminology by getting her students to use specific words to describe what they expect to see and what they actually see.

Fessenden’s unit will culminate in the students’ development of a large ramp system. In addition to having the chance to practice their prediction-making skills, the students also learn how to reflect on and gain a better understanding of prediction making in a scientific context. With such concrete activities and real-world applications, students have an easier time internalizing the scientific practices.


open Discussion Questions

You may find it useful to watch this video with a group of your colleagues and then discuss it together.
  • How do you try to elicit student predictions?
  • Once students make predictions, how do you respond?
  • How do your responses provide opportunities for your students to engage in scientific thinking?
  • How do you help your students make sense of what they observe when they test their predictions?

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