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  • Neglected Tropical Diseases

    Journal Article |

  • 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.

  • The War Over Water Continues

    Journal Article |

    Debates over water allocation help students understand Earth systems.

  • Army Ants and Their Guests

    Journal Article |

  • 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…

  • Sugar Water

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about dissolving. The probe is designed to find out what students think happens to sugar when it dissolves in water.

  • The Carbon Cycle and Climate Change

    Journal Article |

  • Cookie Crumbles

    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 think weight is conserved when a whole object is broken up into small…

  • 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 Model?

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about models. The probe is designed to find out whether students recognize that models can take a variety of forms besides physical replicas.

  • 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.

  • Burning Paper

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about conservation of matter during combustion. The probe is designed to find out if students think the mass changes as paper burns inside a closed…

  • Active Learning Classrooms

    Journal Article |

    Active learning classrooms (ALCs) are designed to support collaborative learning in large class sections that are often taught with a lecture format. Studies on ALCs indicate that they have positive influences on…

  • The 2023 and 2024 Solar Eclipse Double-Header

    Journal Article |

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