Signal Scout Worksheet
Signal Scout Worksheet
The Secret Journey of Digital Data
Name:
Date:
Digital data follows a 3-step cycle: Encode (into binary), Transmit (travel through air or wires), and Decode (back into information).
1
The Binary Booth
Computers use 0s and 1s to represent everything. Use the key to encode the word "HI" into binary.
Binary Reference Key
H: 01001000
I: 01001001
A: 01000001
B: 01000010
LETTER H:
LETTER I:
2
The Transmission Track
Signal path mapping: Draw how the signal moves from the Phone to the Laptop using each method.
Draw a physical cable path below
Method 1: Wired (Fiber/Copper)
Draw invisible wave patterns below
Method 2: Wireless (Radio Waves)
3
The Secret Screen
The laptop received this binary image data. Decode it by coloring squares with a 1 and leaving 0 empty.
Row 1: 1 0 0 1
Row 2: 0 1 1 0
Row 3: 0 1 1 0
Row 4: 1 0 0 1
Image Destination
Scout Reflection
1. In your own words, what is "Binary"? Why do computers need to use it?
2. What happens if part of the binary code gets lost during transmission?
Signal Scout Answer Key
Signal Scout Answer Key
Teacher Reference Guide
Grade Level: 4-6
1
Encoding
H: 01001000
I: 01001001
Teaching Tip
"Bi" = Two. Explain that electricity is like a switch: On (1) or Off (0).
2
Transmission
Wired Path
Students should draw a solid, direct line (cable).
Wireless Path
Students should draw arcs or waves radiating out.
3
Decoding
Expected Result: "X" Pattern
"This grid shows how a simple computer screen (a display) translates digital numbers into physical patterns we can see."
Reflection Discussion Guide
1. Binary Purpose
Binary is a way to represent complex data with simple 'On' and 'Off' signals. Computers use it because they are made of transistors (tiny switches) that can only be in two states.
2. Lost Data
If data is lost (dropped packets), the message or image might be corrupted, have 'glitches,' or fail to load. This is why reliable transmission (wires vs. strong wifi) is important.
