Minefield Challenge

Check out this video playlist of the minefield challenge runs.  Congrats to all the student drivers/builders/programmers!  Four more people left to go when we get back from break.



Happy Holidays everyone!

Portal up to date

The portal is up to date as of 12-12, except for activity 1.2.3.  I'll finish that this weekend.  If you're missing assignments (there are a lot), get them in ASAP.  If you need help, let me know.

Pulleys & Gears & Google, OH MY!

Pulleys & Gears & Google, OH MY!

Here's what's happening in POE:

Professional Interview Transcript

By end of day Monday, I need evidence that you completed your professional interview uploaded to Its Learning.  That can be a copy of the email, recorded conversation, etc.  You have another two weeks to write up the reflection.

1.1.4 Pulley Drives & Sprockets

For this activity you don't need the VEX kits.  Pulleys and sprockets behave very similarly to gears.

1.1.4 Conclusion Qs on Google Classroom

I'd like to try something new with the conclusion questions.  Instructions are on the last page of 1.1.4.  You're logging into Classroom.google.com, joining the class, and completing your questions right inside the google doc provided.  Once you click TURN IN, it switches edit rights and I'll grade it.  If this goes well, this may be how we do certain assignments from now on.  Let me know what you think.

1.1.5 Gear & Pulley Practice Problems

Instead of checking your answers in class on Monday, I'll give you two more days to check them on Its Learning on your own time by Wednesday.  I'd rather devote the class time to building your compound machine.

1.1.6 Compound Machine

Next week we meet 3 times, so you'll have 3 class days to build your compound machine.  Plan to use your class time for that.

Quiz Reflection

You have until Thursday to complete the quiz reflection to earn back up to 1/2 the points you lost.  Its recommended but not required.

I think that's it.  Have a good weekend!

Screw quiz ready!

The video quiz for screws is ready to go.  Sorry it took me a little longer to put together, I'll give you more time to finish it.  Let's say end of day Monday.

Make sure you've started those simple machine problems, so you can ask questions Friday.

HW 9-23: Screw VidQuiz & SM Problems

The last Video Quiz!....(for simple machines)....(will be up shortly)

1.1.2 Simple Machine Problems - start them now so I can answer questions in class on Friday.  They are due Monday, 9-29.  You can find them on Its Learning.

HW 9-22: Inclined Plane & Wedge Calculations

• Video quiz on Its Learning for Inclined Planes & Wedges
• Start Activity 1.1.2 Simple Machine Problems located on Its Learning, due next Monday 9-29

Open House

HW 9-17: Pulleys VidQuiz

Complete the video quiz in Its Learning for Pulleys

http://youtu.be/g6oc2zxRhfY

HW 9-9: Wheel n Axle Video Quiz

DUE Wednesday night, 9-9, 11:55pm
1.1 Wheel n Axle Video Quiz

HW 9-8, Video Quiz - Levers, Professional Interview, Key Term Crossword

Due Tuesday, 9-8, 11:55pm

1.1 Video Quiz - Levers - 2 tries, best score

Due Friday, 9-12 in class

1.1 Key Terms Crossword, use 1.1 Key Terms to complete

Due Monday, 9-15 online

Interviewee Discussion Forum

HW 9-5: Video Quiz - Mechanical Advantage

Due Mon 9-8, 11:55PM
1.1 Video Quiz - Mechanical Advantage on Its Learning

• Watch the video 
• Answer 7 questions in the quiz
• You have 2 opportunities to take it.  Take your time and get it right.

Student Info Survey

 

To get to the survey, you must be logged in to your @medwayschools.org google account.

If it says "You Need Permission" then you are probably logged in under a different account.  This can happen at times when browsers keep you logged in across different tabs.  Log out of your other account, and log back in.

Not sure which account you're logged in under?

1. Go to google.com
2. Click on the icon in the top right
3. Log out of your other account.
4. Log in using your @medwayschools.org account.
5. Navigate back to the blog, and click the link for the survey.

STUDENT INFO SURVEY

By logging in, the survey automatically collects your login name (not your password).  A verified, password protected account also lets us use this tool to quiz in the future.

Welcome to POE!

Welcome to Principles of Engineering

Your homework, due Friday:

1. Find this blog (good job)
2. Complete this student info survey
3. Email me from an account you check regularly.
   jjasinski@medway.k12.ma.us
   name & POE

Today students completed the Marshmallow Challenge. <--Click Here to see them in action.

Tom Wujec presents some surprisingly deep research into the "marshmallow problem"-- a simple team-building exercise that involves spaghetti, one yard of tape, and a marshmallow.  Who can build the tallest tower?  And why does a surprising group always beat the average?

Final Projects - F period

Congratulations to...

• Jill Rossini & Emory DeVolder - most accurate landing 3 shots in a row into the tires
• Bryan McNulty and Brian Karsberg - longest range at 150+ yards (through the goalposts and into the woods) with the POEtato Cannon
• Tanner Pearl, Nick Bonnarigo, and Jake Lawrence - longest range sans explosion at 22 yards with the Ballottle
• Drew McGlynn, Chris Cervantes, and Cooper Sigrist - created a complete 3D model of their ballista on Autodesk Inventor
• Matt Howren, Dave Pepin, and Kyle Rossi - Built the Hossbow, arrows included!

GREAT JOB!

Projectile Launcher Photo Album

Probably HW

What are the chances?
Head to Its Learning and check out either the PPT or the Video on Probability to help with the short quiz that follows.

IT'S ALIVE!!!

THERMO! part 1

HW: D period (and observant and ambitious F period students)

• Watch the thermo-part 1 video
• Quiz on Its Learning

Bridges Built & Broken!

100 popsicle sticks, 10 bridges, 40 students, and 1795 total lbs held!

Incredibly proud of these POE students!  Check out all their hard work on the new...

Medway POE Projects Page

You'll find

• Videos of each bridge breaking
• Pics taken throughout the process
• Final reports from each group
• Results spanning the 3 years we've run this project.

Every design challenge we face in POE will now be posted to this site, so check back soon to see the robots we're working on now!

(image courtesy of Jake Lawrence)

This year's winner..."Don't Judge a Book by its Cover"

Congratulations to Ian C, Dylan B, Carol M, and Pat H. whose bridge held

295 lbs!  930 times its own weight!

What could/should robots do for us?

CONTROL SYSTEMS

What could robots do for us?
What SHOULD robots do for us?

To begin exploring this idea, we'll study some programming.  Linked below is a programming aptitude test comprising of elements involving logical reasoning, numerical problem solving, pattern recognition, ability to follow complex procedures, and attention to detail. This does not require any knowledge of programming.  For some it comes naturally; some have to work at it, but everyone can code. Try your best, this will help me help you. 

1. Aptitude Test: http://www.kent.ac.uk/careers/tests/computer-test.htm
    
2. Submit this survey when finished.
    
3. HW: Where can and should we use robotics?  Answer the question and post a cool example of robotics (video/webpage/etc) HERE.

2.3 Material Testing Assignments

When considering materials, its important to test and understand their limits.  Specifically, we look at the stress a material is under and the strain that results and use that information to make decisions.

Assignments for 2.3 Material Testing

1. Tensile Testing video/quiz -due Sunday night on Its
2. Stress/Strain curve video/quiz - due Tuesday night on Its
3. 2.3.1 Stress-Strain Problems - due Friday in class

Bridge Building - watch the progress!

100 Popsicle sticks.
40 students
12" gap.
10 bridges.
It begins!

Watch their progress in this Picassa Album as they build their bridges.
https://picasaweb.google.com/110213892459893085159/Bridges2014

HW Thursday, 2-6: Tensile Testing

D & F periods
When considering materials, its important to test and understand their limits.
Watch the video below and take the short 5 question quiz on ITS


You have until Sunday night, 11:59pm.  Another video/quiz will post tomorrow as well as practice problems.

Midterms are Posted!

The midterms are corrected, graded, and posted on the portal!

HW on hold

Technical difficulties prevented me from posting the video that was your HW tonight.  I have to record a new one, and that will take some time, so no HW tonight. I know you're sad.  It will be okay.  I'm sure you have HW in other courses.  Have a good night.

POE quarter grades done!

The quarter 2 grades for POE are finished and posted.
Midterms are almost complete.

Getting ready for midterms...

The answer key for the practice problems is posted on Its Learning.
You can also find a video playlist of the problems here.

Don't forget to turn in your work on the practice problems tomorrow and get some extra credit on the midterm.

HW Monday, 1-13

D & F periods
Solve for the member forces on the truss below (the same one we did in class)

• isolate one joint at a time.
• draw an FBD for that joint
• Use trig to break member forces into x and y components
• ADx = ADcos()
• ADy = ADsin()
• set up equilibrium equations to solve for member forces
• Repeat until you solve for all member forces (hint: start at joints that have the least number of forces)

Knowns

• Ray = 66 2/3 lb;  Rby = 33 1/3 lb;  Rax = 0
• Fdy = -100 lb
• AC = 3', BC = 6', CD = 4'

How do I do this again? - http://youtu.be/cOSv5V9ShOs

HW Tuesday, 1-7

F period
Complete/fix 2.1.6 and 2.1.8.

D period
On #4 on activity 2.1.8, Solve for the reaction forces using the values below.

HW Monday 1-6

Add the following values to number 4 of activity 2.1.8.

Solve for the the reaction forces, Rcx, Rcy, and Ray

HW Thursday, 1-2

D & F Periods

• Activity 2.1.6 Reaction Forces (due Monday)
• Videos & Examples can be found on Its Learning on the next page of the Statics Lessons