NDLI: Radar: Using Sound for Sight

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Radar: Using Sound for Sight

Content Provider	TeachEngineering: STEM curriculum for K-12
Author	Rose, Tom Brown, Billyde Desai, Neera Goetze, Kim Innes, Mina Jiang, Angela Nusnbaum, Matt Venkatesan, Aruna Thayer, Vicki Whitt, Amy
Copyright Year	2013
Description	Students use these concepts to understand how dolphins use echolocation to locate prey, escape predators, navigate their environment, such as avoiding gillnets set by commercial fishing vessels. Students also learn that dolphin sounds are vibrations created by vocal organs, and that sound is a type of wave or signal that carries energy and information especially in the dolphin's case. Echolocation is the ability to orient by transmitting sound and receiving echoes from objects in the environment. As a result of a Marco-Polo type activity and subsequent lesson, students learn basic concepts of echolocation. They use these concepts to understand how dolphins use echolocation to locate prey, escape predators, navigate their environment, such as avoiding gillnets set by commercial fishing vessels. Students also learn that dolphin sounds are vibrations created by vocal organs, and that sound is a type of wave or signal that carries energy and information especially in the dolphin's case. Students learn that a dolphin's sense of hearing is highly enhanced and better than that of human hearing. Students are also introduced to the concept of bycatch. They learn what happens to animals who are unintentionally caught while fishing for other species.
Language	English
Access Restriction	Open
Rights Holder	Regents of The University of Colorado Duke University
Subject Keyword	Data Analysis and Probability Life Science Science and Technology Food Chain Dolphin Echolocation Ecosystem Sound Bycatch Marine Mammal
Content Type	Text
Time Required	PT1H
Education Level	Class III Class IV Class V Class VI Class VII Class VIII
Resource Type	Notes
Subject	Probability Biology Technical

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