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  • The Building Blocks of Language

    Journal Article |

  • Is It a Rock? (Version 2)

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about an Earth material, rocks. The probe is designed to determine whether students can distinguish between humanmade, “rocklike” materials and…

  • Needs of Seeds

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about seeds. The probe is designed to find out what students think most seeds need to germinate.

  • Plants in the Dark and Light

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about plant growth. The probe is designed to find out whether students recognize that plants use their stored food to grow in the absence of light.

  • Mountaintop Fossil

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about mountain formation. The probe is designed to determine whether students recognize that some mountains are formed from the uplift of Earth’s crust…

  • Army Ants and Their Guests

    Journal Article |

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