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  • Digging for Data

    Journal Article |

  • Blended Learning in the Science Classroom

    Journal Article |

    An introduction to atoms and molecules

  • Chemicals Gone Funny

    Journal Article |

  • 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.…

  • Pennies

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about the properties of atoms. The probe is designed to determine whether students can distinguish between the microscopic properties of an atom and the…

  • The Photoelectric Effect

    Journal Article |

  • 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.

  • A Hands-on Activity to Understand the Nature of Science and Authentic Scientific Inquiry in Large Laboratory Courses

    Journal Article |

    Integrating authentic research practices into introductory laboratory courses to prepare tomorrow’s scientists has become increasingly prevalent over the past decade. However, an incomplete understanding of the nature…

  • 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…

  • Clickers Are Not Enough: Results of a Decade-Long Study Investigating Instructional Strategies in Chemistry

    Journal Article |

    Studies on the effectiveness of clickers in undergraduate chemistry courses are mixed, and there is disagreement on how to effectively leverage clickers to improve student learning performance. To fill a gap in the…

  • Science That’s Out of This World

    Journal Article |

  • Beyond the Hook

    Journal Article |

  • Thermometer

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about thermal expansion. The probe is designed to find out whether students attribute expansion of the space between molecules to the rise of the liquid…

  • 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.

  • Will It Form a New Substance?

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about chemical change. The probe is designed to find out how students determine whether a new substance with a different chemical makeup is formed when…

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