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  • Mountain Age

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about processes that affect the shape of mountains. The probe is designed to reveal whether students understand the role of weathering in shaping…

  • Gazing at the Moon

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about the Earth-Sun-Moon system. The probe is designed to uncover students’ ideas about Moon phases and whether they think the phase of the Moon changes…

  • Going Through a Phase

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about Moon phases. The probe is designed to find out if students recognize the role of light reflection and the positional relationship between the Earth…

  • Comparing Cubes

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about properties of matter. The probe is designed to find out which properties students think will change if the size of an object made from the same…

  • Floating Logs

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about floating and sinking. The probe is designed to find out if students think changing the size of an object affects how it floats.

  • Floating High and Low

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about density and buoyancy. The probe is designed to find out how students think an object can be changed to make it float differently.

  • Solids and Holes

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about the density of a solid object. The probe is designed to find out whether students recognize that in this phenomenon, air is not displaced, such as…

  • Turning the Dial

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about a physical property of matter. The probe is designed to reveal whether students recognize that under the same conditions, boiling point remains the…

  • Boiling Time and Temperature

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about the boiling point of a pure substance. The probe is designed to find out whether students recognize that the boiling point of a pure substance…

  • Freezing Ice

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about freezing point. The probe is designed to find out if students recognize that the temperature at which water freezes is independent of the volume.

  • What’s in the Bubbles?

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about particles during a phase change. The probe is designed to find out if students recognize that the bubbles formed when water boils are the result of…

  • Chemical Bonds

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about chemical bonds. The probe is designed to find out how students interpret molecular models.

  • Ice-Cold Lemonade

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about transfer of energy. The probe is designed to determine whether students recognize that heat flows from warmer objects or areas to cooler ones.

  • Mixing Water

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about temperature change in a system. The probe is designed to find out whether students recognize that heat moves from the warm water to the cool water…

  • Is It a Plant?

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about the concept of a plant. The probe is designed to find out how students determine whether a living thing is considered to be a plant.

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