Application of Digital and Analog Signals for Information Transfer 5E MS-PS4-3
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Description
Students live in a digital world but the majority of them do not understand what that means. These engaging lessons (GOOGLE and PDF versions) allow students to develop a concrete understanding of the differences between analog and digital devices, and how analog text, sound, and images are converted to digital.
This activity supports the NGSS standards MS PS4-3 and HS PS4-2
These 5E lessons are launched with an anchor phenomenon which is revisited during the unit.
A number of activities (shown below) are included in these lessons to foster student understanding of these complicated concepts.
Students will:
Use visible light as a signal to send a message.
Convert simple sound waves (analog) to a digital wave pulse graph.
Convert simple text to binary code (digital).
Explore a digital image to view the pixels and the amounts of the three lights used.
Discuss, read text, and watch videos to identify advantages and disadvantages of analog and digital devices.
Identify, with evidence and reasoning, which signal (analog or digital) is the best to store and transmit evidence.
Teachers are given a choice of student assessments which includes using the CER (claim, evidence, reasoning) structure to write their conclusion.
Answers are given in the detailed teacher notes, and a rubric is included.
The science and engineering practices below are incorporated in this investigation:
Using mathematics and computational thinking.
Engaging in argument from evidence.
The following Cross Cutting Concept is incorporated in these lessons:
Structure and Function:
Structures can be designed to serve particular functions
Included in this resource:
Teacher slides (59 slides)
Detailed teacher notes (29 pages)
Printable student worksheets with activity instructions (23 pages)
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Email any questions you have with subject line “Analog and digital signals” to us at engagersinscience@gmail.com and we’ll be happy to answer them
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