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Lesson: Communication and Information Science • 4th Grade

In this lesson, we will learn how to identify how people communicated in the past and describe how waves are currently used to communicate and send information.

Lesson Plan

Students will be able to

describe the different ways humans communicated before electricity, including telegraphs, radios, and sonar,
describe how modern communication devices work, including telephones, cell phones, and communication satellites,
identify the parts of a radio, including the transmitter, antenna, and receiver, and their functions,
understand the difference between digital and analogue signals,
describe how computers and phones send information using binary code, pixels, and coding.

Lesson Worksheet

Q1:

Fill in the blank: Morse code is a pattern of signals that can be used for messages. A is used to send these signals through wires electronically.

Q2:

Which of the devices below uses radio waves for long-distance communication?

Q3:

Fill in the blank: An analog signal sends a continuous stream of information. A digital signal sends information using .