1.
3 children are playing in a sandbox. They are building sand castles of varying sizes. If all 3 of them build a sand castle needing 3 buckets of sand, 2 of them build castles needing 5 buckets of sand and one builds a castle needing 8 buckets of sand, how much sand do they need?
Show and Tell!

2. Bell Ringer
Identify one of the different wavelengths on the Electromagnetic Spectrum and tell one fact about it.

3. Analog and Digital Signals

4. Today…
I am discussing the difference between analog and digital signals.
I am explaining the most reliable way to encode and transmit information.

5. Analog
Signals that have constantly changing voltage.

6. Digital
Signals with rapid pulses of voltage that switch the current on and off.

7. Timed-Pair-Share
Read article

9. Exit Slip
In your opinion, are digital signals or analog signals more important in our current society? Use at least 2 details from the article to support your choice