Da Vinci Mechanics Exhibit – Machines, Engineering, “Making” and More

Inspiration for "making" in your classroom

Da Vinci A few years ago (2015) my wife and I were in Christchurch, New Zealand, and we came upon this hands-on Da Vinci Mechanics Exhibit at the Canterbury Museum.  I’d meant to share a post about it when we returned and I was reminded of that when I came across the Flickr album I had set up just the other day.

NOTE: Click on any photo in this post to enlarge it. Then you and your students can read the descriptions and see the drawings in more detail.

From the museum web site: “He studied the workings of nature’s devices and sought to recreate these as practical machines: machines for moving water, for war, for excavating, for drilling and, perhaps most famously, for flight. Exhibition highlights include the tank, the spring powered car, the hang glider, the air screw (the precursor of the helicopter) and a robotic drummer.”

What intrigued me were not only the devices themselves, but Da Vinci’s drawings that accompanied them (careful drawings of plans easily turn a STEM activity into STEAM). The fact that this was a hands-on exhibit multiplied the engagement exponentially.Da Vinci

 

Da Vinci’s designs and devices are a great model for a class engineering/making STEAM experience. What devices and the drawings and explanations that go with them could your students design? Then share them online through Flickr or a blog or wiki or video-conference or … too many ideas to list. Many more photos here.

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Da VinciI noted online that this is a traveling exhibit so maybe see if it is scheduled to be coming to a museum near you. And I bet students could find just a bit more about Da Vinci if they search even a bit. Please share other ideas and links to any “Da Vinci inspired” devices your students “make.”

Learning is messy!

An Eclipse by Any Other Name is an Occultation

Neptune's Moon Triton will cast shadow on Earth traveling 37,000 MPH, SOFIA plans to catch it!

 

 

I’ve been posting lately about NASA’s SOFIA flying telescope (Stratospheric Observatory For Infrared Astronomy) and its upcoming mission to catch the occultation of Neptune’s moon, Triton. NASA has posted more information about the upcoming event and I’m sharing that here including a link to resources I put together to help others understand more about why scientists are excited about this occurrence.

From NASA:

“On Oct. 5, as Triton passes in front of a faraway star it will block the star’s light in an eclipse-like event called an occultation. During the celestial alignment, the team aboard the specially equipped Boeing 747SP aircraft will make observations of the distant star’s light as it passes through Triton’s atmosphere.

Triton has not passed in front of bright stars for many years, making occultation observations difficult. Now, as Triton passes in front of a bright star, the data collected by SOFIA’s 100-inch (2.5-meter) on board telescope and three powerful instruments will enable researchers to better study and characterize the moon’s atmosphere, including its temperature, pressure and density.” 

SOFIA is a modified Boeing 747SP. Note the large opening in the side that contains a 2.5 meter (100 inch) wide reflecting telescope.

And:

“Catching Triton’s shadow as it races across Earth’s surface at more than 37,000 mph (17 km/s) while the aircraft is traveling at Mach 0.85 (approximately 652 mph), is no small feat. To ensure that they are in the right place at the right time, researchers have made advanced observations of Triton and the star with multiple telescopes to determine the location of their shadow. From these precise calculations, SOFIA’s flight planners have designed a flight plan that will put the flying observatory in the center of the shadow for approximately two minutes as Triton aligns in front of the star.”

I put together a wiki page of resources that explain the where’s and whys of this event.

SOFIA will have to fly perpendicular through the shadow (so its telescope is pointing at Triton) that is moving at 37,000 MPH while it is flying at over 600 MPH … apparently some math is involved in figuring out just where to be and when to be there to make this work!

Learning is messy!!

2017 Math & Science Institute – for teachers

In New Orleans ... and it's FREE!

Earlier this year I agreed to lead two grant funded STEM professional development courses for teachers sponsored by Metairie Park Country Day School, June 7th, 8th and 9th, 2017. The courses will be held at Tulane University in New Orleans as part of the 2017 Math & Science Institute. AND NOTE THIS – You just have to get there – tuition is FREE! (note the flyer to the right for more information). Note: private school teachers have to pay $149 per course.

Each course is about 6 hours long spread over the 3 days (2 hours per day, per course). Here’s a page with all the course descriptions.

I’ll be teaching 2 courses: “Powerful, Connected, Collaborative and Global STEM Learning” and “STEM: Hands-on, Minds-on, Creativity-on”

From the online course description:

STEM: Hands-On, Minds-On, Creativity-On is a six-hour course designed to help teachers integrate powerful STEM learning with a focus on engaging, hands-on engineering lessons. Participants will not only experience the lessons firsthand, but also how to collect and analyze the rich data the lessons produce. Strong connections to science, language arts, technology, art, the Next Generation Science Standards and three dimensional learning will be included. Most lesson activities utilize easily obtained materials.

Powerful, Connected, Collaborative, Global, STEM Learning is a six-hour course designed to allow you to see how the power of STEM inquiry projects are leveraged when students are connected and collaborate globally.

There are several Common Core State Standards that require students to utilize technology to collaborate starting in elementary school. This course will provide hands-on engineering lessons and phenomena – coupled with free or cheap collaborative online tools that promote sharing and analyzing data, explanations, global awareness and much more. Participants and their students will learn to collaborate and share through powerful writing, oral language, photography, math, art and other media. Online safety and ethics will be featured.

Check out the 2017 Math & Science Institute home page to see all the courses being offered.

Hope to see you there!

Learning is messy!

WyTECC Keynote

STEM Is A Culture, Not a Time of Day or Day of the Week

So much going on right now so my plans to blog more often have taken another hit. One of the things going on that I’m really looking forward to is my participation in the Wyoming Technology Engagement Curriculum Connection (WyTECC) in Rock Springs, Wyoming in early May. May 6th to be exact.

 

I’ll be providing the keynote and 2 to 3 breakout sessions. They asked for a “STEM-ish” theme so I’m redesigning my “STEM Is A Culture, Not a Time of Day or Day of the Week” presentation and plan to build in more STEM experiences. My sessions will focus on STEM inquiry and the important parts that get left out too often because the activity is engaging, the students get excited, time runs short and we skip the parts that really make STEM learning powerful.

Hope to see you there!

Learning is messy!

Underwater and Aerial Vehicles – Pyramid Lake Edition

It was a crisp and glorious day at Pyramid Lake...

Above: Panorama of Pyramid Lake including the Tufa formations “Stone Mother” and the Pyramid that gives the lake it’s name. Note the people on the beach between the formations for a scale of size.

Between a busy work and holiday schedule, and a bout of aggressive bronchitis, I’m late with some posts – this is one of them … and it’s an experience worth sharing! First I want to thank the Pyramid Lake Paiute Tribe for giving us special permission to visit this special and sacred part of the Pyramid Lake shore to “test drive” our OpenROV 2.8’s and fly Phantom 3 Professional aerial robots as well.

Back in October we were supposed to put the underwater robots the teachers had painstakingly assembled into the crystal clear water of Lake Tahoe to further test them and learn piloting skills. However, that day got “weathered out” by rain and high winds. The next time we could schedule a meet-up was December 3rd. It was a crisp and glorious day at Pyramid Lake. We met at the turn-off from the highway to the dirt road that leads out to the spot in the photo above. Besides the teachers having this opportunity, Trevor Galvin a math teacher at Pyramid Lake Middle and High School is part of our class and he brought along some current and past students and a few others’ students showed up as well.

Here’s how a local TV report explained the day:

The OpenROV’s have a built-in camera and the water was much clearer than we expected: 

 

 

 

Algae covered tufa formations and lake bottom.

 

 

 

 

 

 

 

 

 

 

In the bright sunlight the computer screens were hard to see, so when one of the students reported that he could see something floating in the water straight ahead we told him to take pictures  so we could see it later. Turns out it was a large sacred Cui-ui fish:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

And next another student piloted 2.8 caught a Lahontan Cutthroat Trout:

 

 

 

 

 

 

 

In the meantime Kirk Ellern was flying the Phantom 3 Professional drones the teachers had been trained in (and so were teachers and students) with the goal of photo/video archiving the experience and the area in aerial video. Kirk produced this video of the day, but more to come:


I’ll be posting more about classroom visits I’m making with the teachers in the grant from their classrooms.

Here’s a link to a Flickr album from the day.

Learning is messy!

This Low-Cost Robot Can Help You Explore the Ocean – Nat Geo Live

One of the resources we shared with teachers in the Nevada STEM Underwater and Aerial Vehicle Computer Science Institute this past weekend was this video explaining how OpenROV got its start by David Lang. It’s a “TED Talk-like” video produced by National Geographic. I especially appreciate his references to “citizen science” projects.

From the description of the video on YouTube:

“Originally interested in building an underwater robot to explore a cave rumored to have gold and treasure, 2016 National Geographic explorer David Lang and a friend had no idea where their curiosity and drive for exploration would lead them. They turned to the Internet for help building their underwater robot, and a community of people emerged to assist. With the ability to descend to a maximum depth of a hundred meters, their low-cost underwater robot, called OpenROV, is redefining ocean exploration. Hear Lang talk about the journey to build OpenROV, how it is inspiring people to explore and engage in citizen science projects, and how the latest technology is creating a wave of low-cost, do-it-yourself products that are making new forms of exploration accessible to people all over the globe.”

The video runs about 8 minutes. Enjoy!

Learning is messy!

Building our 6 OpenROV underwater robots

Teachers being messy - learning "Making" skills

The Nevada STEM Underwater and Aerial Vehicle Computer Science Institute (NSUAVCSI) was designed to provide professional development for 6th through 12th grade teachers in not only computer programming, aerial vehicles and underwater robots, but to more importantly then make those resources available to their students. My last several posts have been about our progress so far in the computer programming and aerial vehicle aspects. Now we have begun the underwater robot section of the institute.

I chose to purchase 7 OpenROV 2.8 underwater robots partly because they would have to be assembled. Many teachers have limited “making skills,” and assembly of these vehicles requires soldering, wiring, acrylic welding, gluing with epoxy, super glue, other adhesives and more. Dr. Alex Forrest from the University of California, Davis,  the lead instructor for this portion of the class, received one of the 2.8s weeks ago so he could assemble one to prepare to guide the teachers through the process. There are excellent directions online provided by OpenROV on how to build the robots, but having an experienced builder there able to share their “messy” mistakes and learning during the build has been invaluable to say the least.

Friday the 18 teachers in the institute met at the Tahoe Science Center home of the Tahoe Environmental Research Center (which is affiliated with UCD, hence Alex’s connection) to learn the science and engineering behind UAV’s, but also to begin assembling the 6 vehicles they’ll be able to check out for use with their students.
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Above: Dr. Alex Forest begins class with a short presentation on the hows and whys of underwater vehicles.

Below: The goal – an assembled OpenROV 2.8 next to an unassembled one.
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First steps involved acrylic welding the parts of the housing making sure everything was lined up and turned the correct way before making the weld … a bit nerve wracking.
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After much of the welding and gluing was done and parts started to take shape it was time to begin wiring and installing circuit boards and other electronics.

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DSCF0115Above: Alex clarifying the next step
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Above: Things taking shape while double-checking the online directions.

Below: “Shrink wrapping” soldered wiring connections with a heat gun.

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Lots of gluing and wiring, but below, lots of soldering too.

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This is where we left it at the end of the day Saturday. We meet next Friday and Saturday to finish building and perhaps even give them a tryout in the public swimming pool. A day at Lake Tahoe will come in October.

Learning is messy!

Nevada STEM Underwater and Aerial Vehicle Computer Science Institute

I shared on Twitter not long ago, “The good news is I got a grant! The bad news is I got a grant!” There is too much truth in that dichotomy, but in spite of all the extra work and rules and policies and bids and other “red tape” to be dealt with to purchase the supplies and organize the classes … this is an awesome opportunity for all concerned.

The grant requirements demanded a focus on middle and high school teachers and students, computer programing, and a STEM learning emphasis. You’ll note by the name of the grant (see the title of this post) that the grant department folks that helped in editing, implored me to mention as many aspects of the program as possible in the title.

The choice of underwater and aerial vehicles was an easy one … Nevada has been designated one of 5 states where regulations about drones have been eased to encourage research, testing and innovation in drone use (the fact that Nevada contains huge expanses of open land and 4 seasons of weather may have helped). In addition, with the emphasis on encouraging students to study computer programming … and the fact that these vehicles can be programmed … using drones in class to motivate students to engage in both seemed like a perfect match.

CgDx3-2UAAMh6Et24 teachers, 2 middle school and 2 high school teachers from each of the 6 school districts I serve will be chosen to participate. We will start by doing 2 days of computer programming and 3D modeling utilizing the ncLab online course guided by its developers (a local startup company). Just enough to get teachers started in programming, but also to acquaint them with the online course since it will be available for them and all their students for the next year. I felt that if teachers had even some experience with programming and the online course they would be more likely to use it with their students. Students will have access to the course at school, but also at home or anywhere they can get online, so they can go as far as they like.

Each teacher will receive a Parrot Minidrone Rolling Spider – the kind you control with your phone or pad device, and a waterproof (to 10 meters) and drop proof (from 1.5 meters) digital camera to archive their learning in the institute and student learning in their classrooms. ParrotMiniDrone

Next, teachers will spend 3 days learning about aerial vehicles from Kirk Ellern (a former high school physics teacher) at AboveNV – a local startup. They’ll fly their “Parrots” and learn how to program them (after the institute they’ll have 4 sets of 10 Parrots they can check out for use in their classrooms). After that introduction to aerial vehicles we’ll move on to Phantom 3 Advanced drones. Here we will put the programming we learned (and note what we want to learn more about) in the ncLab course to work. Four sets of three Phantom 3 drones will be available for checkout by participating teachers forphantom3-drone-300x200 use in their classrooms.

The next 5 days of class will be spent partially assembling and utilizing OpenROV 2.8 underwater vehicles. “Maker skills” will be emphasized as teachers will be taught soldering, wiring, gluing and more to prepare the vehicles for use.  6 OpenROV 2.8’s will be available for checkout by participating teachers. The 2.8’s are operated using a laptop and tether and are capable of depths up to 100 meters. They come with a camera – video/photos and sound can be recorded on the connected laptop … there’s even room for small payloads for doing research – another opportunity to use those computer programming skills as well. Alex Forrest from the Tahoe Environmental Research Center and the University of California, Davis, will lead this portion of the class. Alex has done research in Lake Tahoe utilizing those big “torpedo sized” vehicles you’ve probably seen on the news. He is just back from 3 years in Tasmania.

OpenROV 2.8 Underwater Vehicles

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Throughout the school year the course instructors, all specialists in their fields, will be available to consult teachers, visit classrooms and provide follow-up instruction – to me this is a key component of the grant.

Field trip buses will be paid for so participating teachers can take their classes to a water source (lake, pond, wetland, river/stream pool) to operate and do research with the OpenROV’s.

The institute should start up in August and the initial classes will be done by October. I’ll post updates here. I’ll also set up YouTube/Flickr/Wiki and other accounts to archive our progress.

Learning is messy!

Cantilever Spans Supplies / Cost

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For those of you that have been in my trainings or read about our cantilever spans lessons, and wondered about supplies for them, I recently ordered 100 pounds of washers ( two 50 pound boxes – about 2200 washers total) and 1,000 paint stir sticks (or really as I found out paint “paddles“) and today they came in.

 

 

WasherBoxThe washers cost $254.00 ($127 per box) and 1,000 paint paddles printed on one side were $125. (NOTE: blank paddles were about $85 per 1,000). The washers we purchased locally at R&E Fasteners in bulk. The paint paddles we purchased from American Paint Paddle Company.

You don’t need this many for just one class. This is enough washers to make at least 3 class sets of washers – that’s 8 bags of washers per class (1500 grams per bag – around 75-85 washers) 1,000 paint paddles is enough to make 66 sets of 15 per set (That’s enough for 8 classes)

(These numbers are based on 8 groups of 2 – 4 students, per class – so a class of 32)

This is a typical set for a group of 4 students along with a tape measure and data recording sheet to keep track of length measurements.

This is a typical set for a group of 2 – 4 students along with a tape measure and data recording sheet to keep track of length measurements. 1500 grams of washers is a usable, general amount, enough to build a structure, but limited enough to encourage re-engineering to strive for more length. However, depending on circumstances, we sometimes allow more to almost unlimited amounts.

(NOTE: In the past we have gotten paint paddles for free from one of the big box hardware stores I won’t mention here (*see bottom of page). Not wanting to count on always being able to get free paint paddles we checked into the cost (see above), which is fairly doable if the free option isn’t available. The materials should last for a long, long time as well, there isn’t a repeated cost every time you do the activity.

The washers are fairly expensive, about 11 cents each if my math is correct, so we are always on the lookout for a free or really cheap alternative. Please share any ideas you might have.

Remember – much more on this lesson available here – cantilever spans lessons.

 

Learning is messy!

 

 

 

  • Home Depot is the place …  Lowes, and other stores’ paint paddles tend to be warped, not straight, we’ve tried them all. So you can ask at your local Home Depot – we’ve had success when we explain what we are using them for.

New STEM Lessons / Activities Wiki

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Per request I recently set up a new wiki page as a kind of “clearinghouse” of the different STEM lessons and activities I write about on this blog and elsewhere to make them easier to find. I’ll update it regularly and perhaps add support links for the different lessons as well. There is also a link to the wiki on this blog under the link at the top of this page “STEM Lessons/Activities.”

Learning is messy!