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  • Core Idea ESS1: Earth’s Place in the Universe

    Book Chapter | October 2016

    Earth and space sciences consists of three disciplinary core ideas (DCIs) that help to explain a wide variety of Earth-related phenomena, including the motion of the planets, changes in climate, and the shape of Earth…

  • Talking About Gravity

    Lesson Plan | August 2020

    The purpose of this assessment probe is to elicit students’ ideas about gravity. The probe is designed to determine whether students recognize that gravity is a universal force that exists everywhere on Earth and in…

  • Going Through a Phase

    Lesson Plan | August 2020

    The purpose of this assessment probe is to elicit students’ ideas about Moon phases. The probe is designed to find out if students recognize the role of light reflection and the positional relationship between the Earth…

  • Gazing at the Moon

    Lesson Plan | August 2020

    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…

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