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  • Is It Melting?

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about the physical process of melting. The probe is designed to find out if students recognize melting as a change in state from solid to liquid that…

  • Beach Sand

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about beach formation. It is designed to reveal whether students use concepts of weathering, erosion, and deposition to explain how a beach made up of…

  • From the Field: Events and Opportunities, January 11, 2022

    Reports Article |

  • Where Did the Water Come From?

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about condensation. The probe is designed to determine whether students recognize that condensation comes from the water vapor in the air.

  • Hot and Cold Balloons

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about conservation of matter. The probe is designed to reveal whether students recognize that the mass of a warm gas in a closed system is the same after…

  • Freebies for Science and STEM Teachers/From the Field, May 17, 2022

    Reports Article |

  • Floating Balloon

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about the mass of a gas. The probe is designed to reveal whether students recognize that an uninflated balloon will increase in mass when inflated with a…

  • Iron Bar

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about atoms. The probe is specifically designed to determine whether students can use the idea of atoms to explain why a metal expands when heated.…

  • Is It a Solid?

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about solids. The probe is designed to reveal the macroscopic and/or microscopic properties students use to decide whether a material is a solid.

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