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  • When Can We See Different Objects in the Sky?

    Lesson Plan |

  • 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…

  • Sam’s Puppy

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    The purpose of this assessment probe is to elicit students’ ideas about growth. The probe can be used to determine whether students recognize that growth occurs as a result of cell division, which increases the number…

  • Respiration

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    The purpose of this assessment probe is to elicit students’ ideas about respiration. The probe is designed to find out whether students recognize respiration as a process that all living things use in order to obtain…

  • What Are Clouds Made Of?

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    The purpose of this assessment probe is to elicit students’ ideas about an everyday object in the sky: clouds. The probe is designed to determine whether students recognize that clouds are made up of tiny droplets of…

  • Is It a Plant?

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    The purpose of this assessment probe is to elicit students’ ideas about the concept of a plant. The probe is designed to find out how students determine whether a living thing is considered to be a plant.

  • Darkness at Night

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    The purpose of this assessment probe is to elicit students’ ideas about the day/night cycle. The probe is designed to determine whether students recognize that Earth’s rotation explains why it is dark at night and light…

  • Is It a Solid?

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    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.

  • Cells and Size

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    The purpose of this assessment probe is to elicit students’ ideas about the size of cells. The probe can be used to determine whether students recognize how small a cell is relative to other things.

  • Ecosystem Cycles

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    The purpose of this assessment probe is to elicit students’ ideas about the transfer of matter and energy in ecosystems. The probe is designed to reveal whether students recognize that only matter is cycled through an…

  • Earth’s Mass

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    The purpose of this assessment probe is to elicit students’ ideas about the cycling of matter. The probe can be used to determine whether students recognize that once-living matter breaks down and cycles through…

  • Where Did the Water Come From?

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    The purpose of this assessment probe is to elicit students’ ideas about condensation. The probe is designed to determine whether students recognize that condensation comes from the water vapor in the air.

  • Magnets in Water

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    The purpose of this assessment probe is to elicit students’ ideas about magnetism. The probe is specifically designed to determine whether students believe air is necessary for magnets to work.

  • Apple in a Plane

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    The purpose of this assessment probe is to elicit students’ ideas about force related to the interaction between inanimate objects. The probe is designed to determine which forces students think act on an object at rest…

  • Dropping Balls

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    The purpose of this assessment probe is to elicit students’ ideas about falling objects. The probe is designed to find out if students think the weight or mass of an object affects how fast it falls.

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