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  • Seedlings in a Jar

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about conservation of matter in a closed system after a transformation of matter from seed to seedling has taken place. The probe is designed to reveal…

  • 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…

  • Is It Matter?

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about matter. The probe is designed to reveal the characteristics students use to describe and define matter.

  • Is It Made of Molecules?

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about molecules. The probe is designed to uncover whether students recognize that objects, materials, and substances of both a biological and physical…

  • The Rusty Nails

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about a common phenomenon—rusting. The probe is designed to find out what students think happens to the mass of iron nails after a chemical change.

  • Talking About Gravity

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about gravity. The probe is designed to determine whether students recognize that gravity is a universal force that exists everywhere on Earth and in…

  • The Mitten Problem

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about energy. The probe is designed to find out whether students think “warm clothes,” like a mitten, produce their own energy, manifested as heat.

  • Objects and Temperature

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about temperature. The probe is designed to find out whether students recognize that non–heat-producing objects exposed to the same ambient conditions…

  • Is It an Animal?

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about animals. The probe is designed to find out what characteristics students use to determine whether an organism is classified as an animal.

  • Is It Living?

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about living and nonliving. It is designed to find out what attributes students consider when determining if something is living or was once living.

  • Is It Made of Cells?

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about cells. The probe is designed to find out how students think about matter composed of cells.

  • Human Body Basics

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about levels of organization in the human body. The probe is designed to find out whether students recognize cells as the basic unit of both structure…

  • Functions of Living Things

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about life processes. The probe is designed to find out if students recognize that plants and animals share several life functions, even though they are…

  • Wet Jeans

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about the water cycle. The probe is designed to reveal whether students recognize that water goes into the air around us after it evaporates.

  • 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…

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