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Read the Fine Print
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(Complete Item Description)
- Abstract:
In the previous lesson, students learned about the issue of by-catching by fisheries and how it affects marine habitats. Dolphins are one of the main species affected by by-catching While dolphins can use echolocation to identify the location of many objects, they have difficulty identifying nets, and thus can be caught in them by accident. Students will learn how echolocation works, why certain animals use it to determine the size, shape, and distance of objects, and how humans can potentially take advantage of dolphins' echolocation ability when developing by-catch avoidance methods. In this activity the students will experience a simulation of echolocation and use it to walk along a path while blindfolded.
- Subject:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Primary, Secondary
- Collection:
-
TeachEngineering
Read the Fine Print
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(Complete Item Description)
- Abstract:
In this activity, students will experience echolocation themselves. They actually try echolocation by wearing blindfolds while another student makes snapping noises in front of, behind, or to the side of them.
- Subject:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Primary
- Collection:
-
TeachEngineering
Read the Fine Print
-
(Complete Item Description)
- Abstract:
In the previous lesson, students learned about the issue of by-catching by fisheries and how it affects marine habitats. Dolphins are one of the main species affected by by-catching Dolphins use echolocation to identify the location of objects in the water, but they have difficulty identifying nets, and thus can be caught accidentally. Students will learn how echolocation works, why certain animals use it to determine the size, shape, and distance of objects, and how humans can potentially take advantage of dolphins' echolocation ability when developing by-catch avoidance methods. In this activity the students will experience a simulation of echolocation and use it to walk along a path while blindfolded.
- Subject:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Primary
- Collection:
-
TeachEngineering
Read the Fine Print
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(Complete Item Description)
- Abstract:
In this lesson, students learn about echolocation: what it is and how engineers use it to "see" things in the dark, or deep underwater. Also, they learn how animals use echolocation to catch their dinner and travel the ocean waters and skies without running into things.
- Subject:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Primary
- Collection:
-
TeachEngineering
Read the Fine Print
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(Complete Item Description)
- Abstract:
The Sound and Light unit provides students with an understanding of sound and light waves through the theme of the "Sunken Treasure," a continuous story line throughout the lessons. In Lessons 1-5, students learn about sound, and in Lessons 6-10, they explore the concepts of light. The first lesson introduces the concepts of longitudinal and transverse waves. Students then move on to the concepts of wavelength and amplitude in transverse waves. In the third lesson, students learn about sound through the introduction of frequency and how it applies to musical sounds. Next, girls and boys learn all about echolocation what it is and how engineers use it to "see" things in the dark, or deep underwater. The last of the five sound lessons introduces acoustics, in which students learn how different materials reflect and absorb sound.
- Subject:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Primary
- Collection:
-
TeachEngineering
Read the Fine Print
-
(Complete Item Description)
- Abstract:
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 will 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 will learn that a dolphin's sense of hearing is highly enhanced and better than that of human hearing. Students will also be introduced to the concept of by-catch Students will learn what happens to animals caught through by-catch and why.
- Subject:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Primary, Secondary
- SubTopics:
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Animals and Insects
- Collection:
-
TeachEngineering
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