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Whenever you install something in Mac OS X then it gets installed from package files. Along with installing something from package files, a "Bill of Materials" file is stored in the package receipt file. These ".bom" files contain a list of the files installed by that package as well as the proper permissions for each file. But, in future, these permissions can get changed resulting in freezing or crashing of your Mac.

"Early on in my 3D Printing experience, I immediately became interested in designing connecting parts. After some fails, some lessons and minor success, I took a break. I came back to this project and now created some simple connecting parts I call "Building Sticks". The goal for the Building Sticks was two-fold. First, I wanted something that would be fun for kids (and me) to build stuff - like a construction toy. Second, I wanted something I could use to build or prototype simple functional things - like phone stands or business card holders or even just ideas for larger custom objects. "

"A year ago, Nick Anglin was a jaded 6th grader who, as he put it, "hated school and rarely paid attention or did homework." He punctuated the hours of boredom by cracking jokes and making his classmates laugh. Then, something extraordinary happened. Anglin went to a summer Maker Corps camp at the Sutherland Middle School in Charlottesville, Virginia, where his teachers Robert Munsey and Eric Bredder encouraged him to follow his curiosity and passion. As Anglin recently recalled, "They challenged us from day one: 'Create a project related to something you love, incorporate some type of technology and possibly start a business around it.'""

"Last year, at an event where teens showcased apps that they created for a competition, I spoke with the high school boys who won first prize. They expressed surprise at their achievement. "We built something, thought it worked, tested it, only to find out that there were snags," one of them said. "We started again, got a little farther along, and had to stop again. This happened over and over." Their comments highlight what the maker movement is and isn't. It's not about the stuff: the 3-D printers, the soldering irons, the sewing machines, the iPads, or the craft materials. A successful experience is about learning and innovation. That's what those teenagers discovered as they worked through the iterations of their app, and it's something to keep in mind as you consider software for your libraries. Below are three of my favorite maker apps."

"There is something deeply satisfying about a simple and elegant (and cheap!) solution to an annoying storage problem. There is also something especially gratifying about utilizing normally wasted space, as a number of these racks and holders do. "Working the cube," a mentor of mine in my youth used to call it; always considering how to optimize every square inch of a workspace, not just the walls and the floors. Here are five great ways to work your cube with some clever shop storage."

"Last year, at an event where teens showcased apps that they created for a competition, I spoke with the high school boys who won first prize. They expressed surprise at their achievement. "We built something, thought it worked, tested it, only to find out that there were snags," one of them said. "We started again, got a little farther along, and had to stop again. This happened over and over." Their comments highlight what the maker movement is and isn't. It's not about the stuff: the 3-D printers, the soldering irons, the sewing machines, the iPads, or the craft materials. A successful experience is about learning and innovation. That's what those teenagers discovered as they worked through the iterations of their app, and it's something to keep in mind as you consider software for your libraries. Below are three of my favorite maker apps."

"I'm about to say something totally unbelievable and completely ridiculous: I love Star Wars. There. It's good to get that bombshell off my chest. I'm a huge fan of the series and eagerly await the upcoming film by J.J. Abrams and the new Disney ownership. After going through all of the trailers, both foreign and domestic, it occurs to me that there is one thing in particular that is a true standout. Is it the 3-pronged lightsaber? No. Is it the lack of Jar-Jar Binks? Potentially, but not really. It's the merchandising BB-8 droid that is taking the world by storm. Better still, it's actually something you can now purchase (if you're lucky to find one) in real life. How cool is that?"

"LEGO Bricks are toys. They're items that students willingly seek out to play with and get excited to receive as gifts under the Christmas tree. That's one of the things that make them so useful to teachers. Lessons taught using LEGO Bricks don't feel like dull schoolwork. On the contrary, students might feel like they're getting away with something. They actually get to play with LEGO Bricks in class? The idea that students can learn something valuable from play isn't new, or even controversial. A sizeable body of research has been conducted to back up what many teachers already knew to be true.  Fun and learning don't have to be mutually exclusive, and it really works better for everyone involved when they're not. As such, making LEGO Bricks part of your lesson plan can help you teach concepts that students might otherwise find tedious, in a way that doesn't feel like work to them. Many educators have already been putting this idea to the test with success. Here are a few ideas to get you started."

"It appears that confidence is still a major barrier that prevents some teachers from using EdTech to its full potential to really enhance both teaching and learning in their classrooms. I'm a fan of quotes and I feel this one is appropriate as it sums up the impact action can have on confidence: "Inaction breeds doubt and fear. Action breeds confidence and courage. If you want to conquer fear, do not sit home and think about it. Go out and get busy." Dale Carnegie It goes without saying that the he more often you do something, the quicker you will become more confident in doing it. Trialling something new can be daunting at first for many. However, the more often you do this, the less fearful you will be. In fact, you may even find trying new things more exciting, particularly when you see spectacular results! You may be able to place yourself in one of the following categories based on your confidence in using technology in the classroom:"

"Every starting is heard but if you have the motivation and strong determination you will be successful. Most of the students especially of the students of engineering want to build and make something. Practical experience of making something makes our learning perfect and help us to understand the real facts. Though it is very much important but most of the students do not get proper guidelines and they do not not from where he should start. I believe this tutorial will help tech beginners and hobbyists to start any project."

"In the last few years, the "maker movement" has become a marvel in American schools through Maker Faires featuring homemade robots to after-school programs that teach kids to code - to entire schools geared around the art of tinkering. Maker-centered education, so the narrative often goes, could have profound benefits for students hoping to find work in a STEM-related job. Even President Obama has touted the economic benefits the maker movement could have on efforts to reinvigorate American manufacturing. But for teachers who use making in their classrooms, the movement is about something much bigger - something that enhances educational experiences for all kids. They argue this learning-by-doing approach is an effective way to teach students how to develop character and purpose."

"Welcome to the official guide to technology and learning by Edudemic! This part of Edudemic is meant to offer you, the teacher, some of the best and most popular resources available today. We've combed through hundreds of resources in order to narrow down our guides into something easy to read, easy to use, and easy to share. Below are links to the guides we have made so far. They're always a work in progress so be sure to let us know if we missed something or if you have more resources you want us to call out in the guides. We're always looking for the best and most useful resources so don't be shy, share!"

Rather than expecting to be immersed in learning that shines a light on the path forward the notion of searching for driftwood that suits the learner's needs is very empowering. It requires an imagining of learning as a very active process where the learner is aware of their context, their current understanding and what they might need to move forward. It demands a conscious practice of reflection and a disposition towards taking charge of one's learning. It is a very agentic view where learning is something that you do, not something that happens to you. 

"Evaluating a student's understanding of a topic is like taking a measurement. However, it requires measuring something that is difficult to see. It's not like I can stick a ruler into a student's brain to determine the size of their physics stuff. Now, most teachers use indirect means, usually a multiple-choice test or an exam in which students work through a problem. These are poor measures of student understanding. Someone could simply guess, or flub the answer through a silly mistake. So how can I accurately assess a student's understanding of physics? Until someone invents a way of reading a student's mind, I must do something else. I use a combination of written tests and video assessments."

"When the bell rang for early dismissal on a recent afternoon at Cold Springs Middle School in Nevada, students sprinted toward the buses while teachers filed into the library, where posters filled with the names of every child in the 980-student school covered the walls. Taking seats where they could, the teachers turned their attention to Principal Roberta Duvall, who asked her staff to go through the rosters with colored markers and make check marks under columns labeled "Name/Face," "Something Personal," "Personal/Family Story," and "Academic Standing," to note whether they knew the child just by name or something more-their grades, their family's story, their hobbies. "

Do you like your learning 'home delivered' or do you prefer it to be 'home cooked'? Is learning something that you are the driver of or is learning something that happens to you? 

"Have you noticed more discussion recently about Artificial Intelligence or AI? When first hearing "Artificial Intelligence" is there an image that pops into your mind? Is it something that you can easily define? Perhaps your understanding/reference point is something you've seen in the movies. For myself, being an 80s child, my initial frame of reference is Star Wars, I immediately think of R2D2 or C3PO. My mind then wanders to thoughts of "I, Robot" starring Will Smith, in which the robots developed the capacity to think like humans, to feel and to take action on their own. And more currently, I think of the Alexa, Echo, Siri and others that have gained popularity, even more so recently. But what is the true meaning of AI and how do we see it in daily life?"

"Starting to integrate technology can be intimidating.  So many choices, new ideas being shared all of the time through social media, blogs, books, Teacher Professional Development, and more. I find the best time to walk away with new ideas is right after a big event dedicated to edtech. With conference season upon us, maybe you recently attended a conference or edcamp or read something and now have a long list of new ideas which can be overwhelming. Or maybe you just are looking for something to change in your classroom or school and need some quick ideas for new, engaging elements to implement in your classroom or with your faculty even for professional development."

"Some nights, it's like you can't get your brain to shut up long enough for you to fall asleep. You're mentally reviewing the day you just completed while also previewing the day ahead; sometimes, your mind may even reach way back into the archives and pull up something embarrassing you did back in high school. So fun! Racing thoughts can be a sign of a serious mental health condition like anxiety. But these nights also happen to everyone from time to time -- and once we're too old for bedtime stories, it's not always clear what to do. There's no one solution that will work for everybody, of course, so instead, we've rounded up suggestions from eight sleep experts. At the very least, it's something to read next time you can't sleep"

"Imagine a parent telling a child, "I'm just not a reading person." Sounds odd, doesn't it? Now reread the same cartoon, substituting "math" for "reading." Suddenly it doesn't seem so absurd. But it should! As a society ever more reliant on technology and STEM-based careers, we must shatter the myth that math skill is inborn and reinforce that it is the result of intention and practice. It's common to hear well educated adults declare themselves "not a math person," sometimes proudly. Indeed, many people of all ages believe that mathematical ability is something you are either born with or not, rather than something to be mastered with focused effort. This belief is wrong. What's more, it's harmful to kids as they have their first experiences learning math; the attitude that "I can't learn math" quickly becomes a self-fulfilling prophecy. As a society ever more reliant on technology and STEM-based careers, we must shatter the myth that math skill is inborn and reinforce that it is the result of intention and practice. Reforming these perceptions needs to be a priority for teachers, parents, and creators of new learning tools that align to the way these digital-savvy students learn."