Conservation of Mass - 5.P.2.2


I love using Page Keely's books "Uncovering Student Ideas in Science".  The probes are written at an 8th grade level but with a little adjustment they work great with 5th grade students.  One of the probes is called "The Cookie Crumbles".  This is an excellent example of a probe that can engage students in a topic via critical thinking and discussion followed by the exploration as they re-enact the probe themeselves.
Last week, I used this probe to introduce the concept of Conservation of Mass.
Watch the video of one student pair as they explore and learn.
Conservation of Mass - 4 min. video

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