Vocab
A tool that uses advanced technology
High Tech Device
To send forward means to _____________ something.
transmit
Why is it important to be able to transmit information over long distances?
Possible student answers could include the following: Communicating with other people is very important. We can share information, learn new things, and work together even when we are very far apart.
Describe two example of coded communication used MOSTLY in the past
letters
smoke signals
writing with mud
drums
word of mouth (messenger)
Information stored in computers and on the Internet
Digitized Information
A radio transmitter can detect sound waves and convert them into electromagnetic waves that it can __________cover long distances. A receiver can __________ the electromagnetic waves and turn them back into sound waves for us to hear.
Word Bank: Cell phones, Decode, Transmit, Digital
transmit
decode
Explain how you could share a message with a friend sitting across the room without talking.
Possible student answers could include the following: I could tap my desk and use Morse code to share a message. I could use a flashlight to send signals to share a message. If we both had cell phones, I could text my friend a message.
Describe two example of coded communication used MOSTLY in the present
Texting (cellphones)
computer/laptops
landlines (house phones)
Video Chats
To change from code to ordinary language
Decode
Many digital devices, such as ________________ have changed the way we collect information and communicate with each other.
Word Bank: Cell phones, Decode, Transmit, Digital
cell phones
Hows does a person's voice get transferred from cell phone to cell phone?
A person's voice travels in milliseconds via radio waves from cell tower to another, until close to the person they are communicating with.
Morse code is often transferred via a telegraph machine, explain TWO scenarios/reasons why a message may need to be sent.
Fire (ranger's only form of communication)
submarines (lost at sea)
army tanks (communicating for safety reasons)
Machines that process information
Computers
The telegraph was one of the first electronic ________ devices.
Word Bank: Cell phones, Decode, Transmit, Digital
digital
Describe two real-world examples in which people use digitized information to communicate.
Possible student answers could include the following: Computers and cellphones use digitized information to communicate messages over long distances.
Explain the sole purpose of Braille coding.
The purpose of braille coding is to help visually impaired individuals locate and find their way around. For example, possibly finding a room number in a school or locating the restroom.
Patterns generated by sampling a stream of continuous data at regular intervals that are converted to 1s and 0s
Digital Signals
semaphore
Compare and Contrast Semaphore and Braille Codes.
-Both codes can send messages but are used in different situations.
-Semaphore uses gestures with flags.
-Braille uses small, raised dots.
-Braille uses raised dots so that information can be transferred to a person who cannot see letters and numbers.
Which of the five senses do you use to communicate with others?
Give an example of each
touch
taste
smell
sight
hear