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  • 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.

  • 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…

  • 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…

  • Making Sound

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about sound. The probe is designed to reveal whether students recognize that sound is produced by vibrating matter.

  • 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…

  • 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.

  • 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.

  • Scientist Circles: Fostering Student Participation and Collaboration in Class Discussions

    Professional Learning Unit |

    Moving students into a circle so they can see and speak directly to each other can transform a quiet classroom into a collaborative discussion space!

  • Lemonade

    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 matter is conserved when a substance is dissolved in a liquid.

  • 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…

  • Using the Putting the Pieces Together Instructional Routine

    Professional Learning Unit |

    In this module, educators will be introduced to the four elements of the Putting the Pieces Together (PT2) Instructional Routine. In the Putting the Pieces Together Instructional Routine, students synthesize ideas they…

  • Apple in the Dark

    Lesson Plan |

    Imagine you are sitting at a table with a red apple in front of you. Your friend closes the door and turns off all the lights. It is totally dark in the room. There are no windows in the room or cracks around the door.…

  • Birthday Candles

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about how we see objects. The probe is designed to find out if students know that light must be reflected from an object and enter the eye in order to…

  • What Is Sensemaking?

    Professional Learning Unit |

    Learn to recognize the four critical attributes of sensemaking and how these attributes work together to help ensure all students have access and a strong desire to learn science. 

  • NSTA Announces Sale of Headquarters Building

    Blog Post |

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