Posts Tagged ‘the’

The Power Grid

How does the electricity that you use for everyday life get to your house? Americans use a lot of energy every day and we count on electricity for almost everything we do, and the amount of electricity we use is continually growing. Where does this energy come from, and how does it get to us? The answer is The Grid. Here are some videos from around the web that help explain how it works. Can you answer the questions below after watching these short videos?

Mr. Hurd’s POE Class: Answer the questions after the last video using internet resources, and then hand them in electronically!

Power Grid from Practical Engineering channel 10:24

Electrical Grid 101 : All you need to know! by Engineering World 3:46

How does the Power Grid Work? #TheShortAnswer w/Jason Bellini 2:43

Conclusions Questions:

  1. What are the three main uses of electricity in the US?
  2. How is electricity different from other utilities like fresh water and sanitation systems?
  3. How many electrical grids serve all of North America? Who are the “Separatists”?
  4. What are the three major components of The Grid?
  5. List at least five different ways used to generate energy that goes to The Grid.
  6. What is used to transport the energy long distances in the grid?
  7. What is used in The Grid to boost the energy when moved long distances?
  8. Explain what a substation does?
  9. What kind of electricity is transported on the Grid? AC or DC? Why?
  10. Explain simply how a transformer works?
  11. What are three overarching goals that engineers use to design and maintain The Grid?
  12. Give three examples of how The Grid is getting smarter.

Going Beyond:

  1. What are the systems used to step down energy so that it can safely be delivered to a home or other building for use?
  2. What systems are used to ensure that energy forms can travel long distances?
  3. What kinds of energy are produced closest to where you live?
  4. What are some inexhaustible resources available in your area that can be utilized to procure energy?
  5. Do you think customers should be able to choose how their energy is produced, even if it means that they may need to pay more for the energy they choose? Defend your answer.

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The Lynxmotion AL5D V2: Putting it all together

So you have new Lynxmotion robots for your classroom, so now you have to build and wire them. I’ve put together 4 videos to help you assemble and wire them. This is not meant to replace the manual, but rather to supplement it. You can find the manual here: PLTW-AL5D-Guide-11.  Lots of new stuff in the manual too, especially about how servos work.

Here’s a few short videos to get you going!

Tips & Tricks on Assembly

Wiring the Power Supply

Wiring the Servos

Centering the Servos

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Wiring the Power for Lynx AL5D


How do you wire the AL5D Lynxmotion robot arm for power?


You really have to make sure that you do this right, or you will damage the SSC-32U and/or the power supply, and it will not work. So, start by reading the manual; you can find it Here: PLTW-AL5D-Guide-11. Also, see the video below.

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2016 PLTW Engineering Teacher of the Year Chris Hurd

Original article in PLTW’s website can be found here.

Chris Hurd, PLTW Engineering Master Teacher at Cazenovia High School in Cazenovia, New York, received the 2016 PLTW Engineering Teacher of the Year award at PLTW Summit 2016.

Hurd has been teaching PLTW Engineering since 1999 and has credits in Introduction to Engineering Design (IED), Principles of Engineering (POE), Digital Electronics (DE), Computer Integrated Manufacturing (CIM), and Engineering Design and Development (EDD). He became a Master Teacher in 2000.

Cazenovia High School Principal Eric Knuth describes Hurd as a €œforce of nature€ whose skill in building relationships €“ with students, colleagues, and community leaders €“ is unparalleled. Hurd is a trusted adviser and a constant champion for his students; he believes in them wholeheartedly and challenges them to do things they never thought they could. Furthermore, he is known in his community as THE guy when it comes to teaching engineering to high schoolers.

One would be €œhard-pressed to find anyone that has more of a positive impact on kids€™ lives than Chris Hurd,€ Knuth says. €œHe has been a mentor and model for of hundreds kids, and he changes lives, one student at a time.€

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Jim Hanson

Chris Hurd


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