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  • Does a Magnet Work Without Air?

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about magnetism. It is designed to reveal whether students think air is necessary for magnetic interaction. Because some students think gravity affects…

  • Which One Attracts?

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about magnetic interactions. It is designed to find out whether students recognize that a magnet and magnetic materials attract each other. The probe is…

  • How Would a Magnet Work on the Moon?

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about magnetism. It is designed to reveal whether students think gravity has an effect on magnetism. Before using the probe, it’s important that students…

  • What Happens When You Hold a Magnet Near a Refrigerator?

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about magnetic interactions. It is designed to find out how students visually represent magnetic interactions. If materials are available, consider…

  • What Happens When a Magnet is Brought Near a Charged Ball?

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about magnetic interactions. It is designed to find out whether students confuse electrostatic effects with magnetic effects and is best used for…

  • What Makes It Stick?

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about magnetic interactions. It is designed to find out whether students recognize that it’s a force between magnetic objects that causes them to “stick…

  • What Happens When a Magnet Breaks?

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about the properties of magnets. The probe is designed to find out how students would represent the poles of a broken magnet. It is best used with middle…

  • How Can You Represent a Magnetic Field?

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about magnetic fields. It is designed to find out how students would represent a magnetic field using magnetic field lines. The probe is best used with…

  • How Can You Magnetize a Nail?

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about magnetization. It is designed to find out how students would represent, at the particle level, a nonmagnetized versus a magnetized nail. The probe…

  • How Can You Make an Electromagnet?

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about electromagnets. It is designed to reveal where students think the magnetic effect comes from when wire is wrapped around a nail to make a magnet.…

  • Does the Type of Wire Make a Difference in an Electromagnet?

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about electromagnets. The probe is designed to reveal whether students recognize that an electromagnetic effect can pass through an insulated wire. This…

  • How Can You Make a Stronger Electromagnet?

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about electromagnets. It is designed to reveal what variables students think affect the strength of an electromagnet. This probe is best used with middle…

  • What Happens When You Bring a Compass Near a Current Carrying Wire?

    Book Chapter |

    The purpose of this probe is to elicit student ideas about magnetic poles. The probe is designed to reveal whether students think a magnetic field must always have magnetic poles. It is best used with high school…

  • Introduction to DCIs: What They Are and Why They Are Important

    Book Chapter |

    This chapter serves as an introduction to Disciplinary Core Ideas (DCIs). As a whole, DCIs help students build usable knowledge that is central to the physical sciences but also across the life sciences, Earth and space…

  • Core Idea PS1: Matter and Its Interactions

    Book Chapter |

    This chapter focuses on matter and its interactions and discusses the importance of how a rich understanding of atomic theory leads to a deeper understanding of why there are so many different substances in the world. A…

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