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"Most of our projects are tested using a small piece of plastic known as a breadboard. Officially, it's known as a 'solderless breadboard' because it enables you to use circuit parts without soldering them together. Electrical components are connected by pushing them into the holes in a breadboard. These holes are connected in strips, as shown in the main image. If you push a wire, or a different component, into one hole in a strip, and another wire into the hole next to it, it's as if you'd physically joined (or soldered) the two wires."

In the song 'There's a Hole in the Bucket' we are introduced to Liza and Henry as the overcome the difficulties caused by a bucket with a a hole in it. Liza sets Henry the task of collecting water but as we soon find out this is no simple task.

"Discovering content is the easy part. Managing it all is the challenge. The gallery below by Shirley Williams is a strong collection of tools to better discover, manage, and share digital content. And with the imminent death of Google Reader, several of these apps could help fill that huge hole (though not the one in your heart)."

"One thing that always interested me about History was the growing realisation that even the supposedly simplest and most straightforward facts are quite often shrouded in a mystifying narrative; a trail of sources that leaves the true story open to a range of opposing interpretations and outcomes. Whilst we may think we have answered all the questions and arrived at the correct conclusions about the sequences of events, a differing theory or discovery of a contradictory source can suddenly debunk the accepted. That is what makes learning History so fascinating; the mysteries. The definite mysteries that we may never solve or we can see evolving into an answer as decades move forward, or the certain chronicle that suddenly finds itself turning into a cryptic puzzle as later evidence emerges. Within us all is a person who wants to know the answers when challenged by the unknown, and to embrace the exhilaration of cracking a Sherlockian case. Instead of a just a 'Whodunnit?', exploring history mysteries involves a wider spectrum of narratives and therefore can offer a far more rich tapestry of skills including analysis, questioning and the evaluation of places, events and persons. Follow me down the rabbit's hole into the wonderland of history mysteries."

"Each year many of us look forward to the annual reveal of the AASL Best Websites and Best Apps at ALA Annual Conference. In case you missed those big reveals a couple of week ago, no worries!  (Rather, worry. For you are in for a serious rabbit hole experience.) Summer is here and you will be able to squeeze in at least a few explorations of some new tools to bring back to school from among both of the committee's selections. There were so many goodies and you can enjoy them in a variety of publication platforms."

"With some thick cardboard, a cutting knife, some hot glue, a ruler, and probably a bit of trial and error, you can create your own DIY coin sorting machine. The key to the sorting "mechanism" is to cut the right size holes in the correct order-smallest to largest. Watch this how-to video from The Q."

"There is a lot of controversy and passion surrounding the flipped classroom. Advocates of flipping point to many advantages including students learning at their own pace, availability of online lessons and time for real work in the classroom. Opponents of flipping point to holes including student access to internet"

"When electrical engineering professor Dr. Karen Shoop of Queen Mary University in London took her first knitting workshop, she noticed immediately that knitting is very similar to writing computer code. "I noticed that knitting instructions are largely binary (like computers) - in other words, knit or purl," she said. "More interesting were the knitting instructions, which read just like regular expressions [of code], used for string matching and manipulation when coding." Shoop also recognizes that the earliest stages of computing were inspired by handwork: "Of course, computers ultimately started off partially inspired by weaving and the Jacquard loom, or earlier Bouchon's loom. Arguably some of the earliest programmers were the people making the card/paper punch hole patterns for weaving patterns.""

"Puppet creation requires making mistakes. Your first puppet will always be very, very special. Students learn fairly quickly that what they see in their mind is not the same as what they can make with their hands. Abraham Lincoln turns into a Rastafarian cyclops. Taylor Swift becomes a married older chicken. Mistakes in puppet making allow kids to fail in a very low-risk way. They get a practical lesson in imperfection. They also get a lesson in following directions. Some students cut a hole, rather than a straight line, for their mouth. Helping them fix their mistakes reinforces the establishment of a growth mindset."

Sugata Mitra talks about his Hole in the Wall project. Young kids in this project figured out how to use a PC on their own -- and then taught other kids. He asks, what else can children teach themselves?

Despite updated operating system, browser, browser add-ons, installed firewall, and acute computer security settings, clever viruses, spyware or Trojans may find loop-holes to slip into your system. Not only in terms of performance, but in terms of stability and security too, these malicious software push you on back-foot. What to do next?

"Minecraft is a simple, clumsy-looking little game full of blocky graphics and unclear terms of play. It is essentially a giant sandbox of digital legos that players can do with what they wish-tear stuff down, dig holes, or build dizzying towers of complex design and architecture. And it's a perfect analogue for what's possible in learning. First off, let's be clear-it's a huge, huge hit. Minecraft has sold over 20,000,000 copies to date. It is available for iPad, Android, PC, and Xbox (though sadly, not the PS3), and is quickly becoming a cultural phenomenon. What makes it popular with children is tempting to oversimplify, but five characteristics really stand out."

"The discovery of gravitational waves that was announced a few weeks ago substantiated Albert Einstein's oracular ideas about black holes.The importance of such a discovery in scientists' eyes is that it will help shed light on many enigmatic issues about the genesis of the universe. Your students might have heard about this scientific breakthrough and though they might probably not fully understand the full concept of gravitational waves and Einstein's general relativity but their desire to learn more about space and its workings might be revived. Students can actually learn a great deal about space using iPad apps. There is a wide variety of excellent apps created specifically to help students and even young learners explore the workings of space and understand some of its topics. Below is a collection of some examples of NASA apps  students can use to learn more about space:"

"Fiber optics! Fiber optics! Admittedly, I'm a little obsessed with fiber optics, and for good reason. They are a durable, versatile, and relatively simple way to add beautiful lighting effects to anything you're making. Just look at some of the gorgeous projects you can create with them! There was a time when I mostly used el wire in my illuminated designs, but ever since the amazing Natalina and Technorainbows introduced me to the wonders of fiber optics in their various forms, I've been on a bit of a fiber optic bender. So come fall down this rabbit hole with me, and turn yourself into a mesmerizing bioluminescent sea creature... you know you want to."

"A driving strategy that serves students-whether pursuing self-knowledge or academic content-is questioning. Questioning is useful as an assessment strategy, catalyst for inquiry, or "getting unstuck" tool. It can drive entire unit of instruction as an essential question. In other words, questions transcend content, floating somewhere between the students and their context. Questions are more important than the answers they seem designed to elicit. The answer is residual-requires the student to package their content to please the question-maker, which moves the center of gravity from the student's belly to the educator's marking pen. In that light, I was interested when I found the visual above. It's okay to say "I don't know." Teach your students how to develop questions (because) it helps conquer their own confusion. Rebeca Zuniga was inspired to create the above visual by the wonderful Heather Wolpert-Gawron (from the equally wonderful edutopia, and also her own site, tweenteacher). The whole graphic is wonderful, but it's that I don't know that really resonated with me. Traditionally, this phrase is seen as a hole rather than a hill. I don't know means I'm missing information that I'm supposed to have."

"On Saturday, AASL committee members announced the 2017 Best Websites and 2017 Best Apps for Teaching & Learning at ALA Annual Conference in Chicago. In case you missed those big reveals, no worries!  Actually, worry-big time. You are in for a serious summer rabbit hole adventure. Now in its ninth year, The 2017 Best Websites for Teaching and Learning list presents 25 websites that provide enhanced learning and curriculum development for school librarians and their teacher partners."