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Category Archives: Aids to Learning
As the new school year approaches, I thought that I’d shift gears again and write about something every teacher could use, but that few do: a means to electronically manage your classroom library and other resources. Tellico is an open source application that allows users to do just this. Tellico has been developed for the K Desktop Environment for UNIX and Linux, but is also available for Microsoft Windows and runs fine in UNIX/Linux without KDE. With Tellico, users can organize books, comic books, music and other media.
Upon launching Tellico, it can be seen that there are no surprises in terms of its interface. There is a menu at the top of the screen with a toolbar below this and a search tool to the right of the toolbar. Below these are three panes: one long one on the left and two panes, one on top of the other, on the right. The pane on the left lists authors for the given category. The top pane on the right lists books by the selected author and the bottom right pane provides information about the selected work, as shown in the screenshot.
Everything that you can do with Tellico can be done through either the menu or the toolbar. For example, clicking on the New button on the toolbar provides you with a list of catalogs that can be created. Here are the types of items that Tellico can be used to organize: books, bibliographic entries, comic books, videos, music, trading cards, coins, stamps, video games, wines (probably not at school, but home?), board games, and file listings. Plus there is a generic template available for other items not included in this list.
Once a type of collection has been established, most of the routine tasks can be handled using the toolbar. Tool tips provide users with more information about each button. For kicks, click on New and select New Book Collection. Now, let’s just jump in an do a search together. Clicking on the Search button opens the Internet Search window. Items can be searched by Title, Person, ISBN or Keyword. For my search, I chose HTML, XHTML & CSS by Elizabeth Castro. You may choose your own book.
My previous experience as a copy cataloger in a local library has taught me that the ISBN is often the fastest way to search, so that is the search criteria I will use. I select ISBN from drop-down menu under Search Query and type me book’s ISBN in the Search field left of this. You can also search for multiple ISBNs by clicking the checkbox next to Multiple ISBN/USP Search to the left, just below the Search field. To the right of this, select your Search source. Options include the Library of Congress (US), Google Book Search and ISBNdb.com, among others. I chose the Library of Congress. When ready, click the Search button right of the right of the drop-down box.
Surprise! My first search produced no results. I then tried searching ISBNdb.com and found my book. The key here, folks, is to be persistent and to be prepared to alter your search criteria. Just because the item doesn’t turn up, doesn’t mean that it isn’t out there. Notice that publication and cataloging information appear in a pane at the bottom of the Search window. Click the Add Entry button and the item will be added to your new catalog. Clicking the Save button opens the Save As dialog box. Here you can name your collection and select where to save it. All collections are saved in Tellico’s native format (.tc).
One of Tellico’s strongest features is the ability to customize fields of data for a given type of catalog. Clicking on the Fields button opens the Collection Fields window. Here fields can be removed, added or modified as users would like. Very useful for customizing your database. Another wonderful feature is the capacity to check materials out to borrowers. Simply click on the item in question, click Collection and choose Check-out… and the Loan Dialog window opens. Here you provide the borrower’s name and, optionally, a due date via the integrated calendar and you’re all set. You can even add a reminder to the aforementioned calendar.
The Settings menu provides easy configuration in a number of ways. The Filter option allows for querying of your collections using a wide range of criteria. Tellico can also be used to generate bibliographies for collections, something that could be very helpful with student research projects. The Configure Tellico option allows users to configure Tellico’s general functioning, printing, templates and data sources. Librarians should note that with the yaz library installed, Tellico can access z39.50 servers and read MODS and MARC (USMARC/MARC21 and UNIMARC) formats. I have been unable to determine, either way, whether or not Tellico supports exporting to MARC format. Finally, Tellico has a wonderfully integrated help feature.
Tellico could be just the thing you need to track classroom resources. You could even set up an old laptop in your classroom for just this purpose and have students do data entry for your books. This would be a great way to build skills such as literacy and problem-solving. Materials could even be checked out via this laptop. So, get started now and let Tellico relieve you of the stress of worrying about lent materials.
Stephenson, R. (2011). Tellico [computer software]. GNU General Public License.
Stephenson, R. (2011). The Tellico handbook. GNU General Public License. Retrieved from https://docs.kde.org/trunk4/en/extragear-office/tellico/tellico.pdf.
I am extremely excited to announce that my latest article, a tutorial entitled Learn Geometry with Dr. Geo, will be published by opensource.com. This is the first article of this nature that I’ve written that someone else will publish. I think that they did a wonderful job presenting the article and using my screenshots. Thanks to opensource.com for publishing this article.
It will be available here on August 22, 2016 (that’s 22 August 2016 for the 6.68 billion people not living in the United States).
I’ve recently come across a very engaging platform through which children can learn to write computer programs. Little Wizard is an open source application designed to help students in the primary grades learn the concepts that are common in all programming languages, such as variables, loops and conditions. Students can do all this using the mouse. Let’s get up front and personal with Little Wizard.
The interface is WYSIWYG and rather delightful in its use of colorful, engaging images. At the top of the window is a menu bar and below this is a toolbar which, by default, has the Program button already depressed. This is referred to as program view. Below the toolbar is a row of tabs, called the palette. Below this is a row of colorful buttons used for writing computer programs by simply clicking on and dragging program elements represented by the buttons to the program grid below. This is where users write their programs. One really cool feature is that users can easily toggle views of their programs by clicking on buttons on the toolbar. Users can bounce from program view to world view to mixed view. World view presents the world grid which allows users to create and alter the wizard’s world. Mixed view displays both the world grid and the program grid. Integrated tooltips nicely enhance functionality.
So, what kind of programs can you write with Little Wizard? Looking at the tabs in the palette should give you a clue: Wizard, Math, Variables, Conditions and Loops and Other. Each tab has icons, which represent different program elements. Wizard controls functions such as movement of the Little Wizard icon. Math is where you find numbers and their operators. Variables provides the ability to add variables to your program. Conditions and Loops allows for conditions (e.g. if/else statements) and loops (e.g. repeat/until statements) to be placed in a program. Other allows users to assign positions or to prompt for user input. Using these tools, young programmers can make the wizard move, wait for user input or even change his world.
So what happens if you need help getting started? The Little Wizard Web site offers a free tutorial that will guide you through Little Wizard’s interface and to help you learn to use the building blocks of computer programming. Sample programs are provided that give Little Wizard the opportunity to show you what it can do. In no time, users can start developing and bringing to life their own ideas. Now stop reading this and download Little Wizard so you can see what your students will create.
Little Wizard is available for Linux and Microsoft Windows.
Kirillov, K. (n.d.). Little Wizard’s home page: tutorial. GNU General Public License. Retrieved from http://littlewizard.sourceforge.net/tutorial.html.
Kwadrans, M. (n.d.). Little wizard [computer software]. GNU General Public License.
I came across this little gem while perusing the Ubuntu Software Center and decided to give it a shot. Stellarium is an open source, free planetarium that runs right on your computer. To be honest, I was really taken aback by Stellarium’s stunning appearance and visual quality. For one thing, it doesn’t run in a window. It launches into full-screen mode, which beautifully presents the eye-catching graphics. I can discuss this further at another point.
As previously mentioned, Stellarium opens in full screen mode by default. The user finds him or herself looking up at the night sky in the northern hemisphere. Only the major heavenly bodies and cardinal compass points are labeled. The interface is very straightforward. At the bottom of the screen, a panel provides information such as location (Paris, France by default), elevation, Field of View (FOV), Frames Per Second (FPS), date and time. Clicking on a heavenly body brings up information about that body, such as its name, position and distance from Earth. Configuration is handled through two docks/panels called toolbars in the lower left corner. The bottom toolbar, or main toolbar, allows the user to turn visual effects on and off. The side toolbar opens dialog boxes used to configure Stellarium.
So, what does Stellarium have to offer in terms of features? According to the Stellarium Web site, Stellarium includes a default catalog of over 600,000 stars (though additional catalogs containing up to 210 million are available) There are optional connecting lines and/or illustrations (referred to as Constellation Art) that can be toggled to better visualize constellations. Stellarium offers constellations for over 20 cultures and the stories behind those constellations. Views of every planet, and their satellites, are provided. Other features include powerful zoom, multilingual support, time controls, excellent graphics and integrated help.
Arguably, one of Stellarium’s greatest strengths is the level of customization that it offers. First of all, as I mentioned, Paris, France is the default location. Paris is, however, one of hundreds of locations around the world from which users may choose for their session. Additionally, if you’re bored with Earth, you can view the stars from such heavenly bodies as Mars, Saturn or the Moon. One feature that the author thought was pretty cool was being able to toggle the visibility of the ground. Remove the ground and you can view the whole night sky, northern and southern hemispheres, just as if you were in outer space. Other features that can be controlled include equatorial and azumuthal lines, the flow and direction of time and visibility of nebulae. Combine these with the many other features available and you have an incredible platform upon which your students can explore the universe.
Stellarium is available for Linux, Apple MacOS and Microsoft Windows.
Category: User’s guide. (2014). Retrieved from the Stellarium Wiki: http://www.stellarium.org/wiki/index.php/Category:User’s_Guide
I usually write about open source technology, but now I’m going to address something that is arguably the future of open source, Linux users groups for school-age children. In this case, the users group is the CSE Asian Penguins, a Linux users group for middle school students at the Community School of Excellence in St. Paul, Minnesota. CSE is a Hmong charter school and the Asian Penguins may well be the only Linux users group based in a Hmong charter school. So, who are the CSE Asian Penguins and what do they do?
First of all, the Asian Penguins are sixth, seventh and eighth grade boys and girls who attend CSE. To quote from their Web site “our membership includes Hmong, Karenni, and other types of students.” The common ground upon which they meet is that of Linux and other open source software. They utilize Linux for schoolwork, entertainment and communication. Their name, Asian Penguins, comes from the fact that most of these students’ families came from Asia and that a penguin is the Linux mascot.
So what does this group of like-minded open source enthusiasts do? One of their primary goals is to become extremely familiar with the Linux operating system. They learn to use Linux for school, productivity and life in general. Better still, these young academicians use this knowledge to educate peers and teachers alike. But these scholars take their knowledge of open source beyond the confines of their school and reach out to the surrounding community by bringing computers running Linux to needy families and organizations in the community. Their most recent endeavor, Operation Upgrade, provided CSE with two computer carts, containing 60 refurbished laptops running the latest version of Ubuntu Linux.
So, why do I refer to a users group like the CSE Asian Penguins as the future of open source? These young men and women are learning the ins and outs of Linux at the perfect age. Their interest will no doubt result in the broadening of their computer frontiers into other areas of open source technology. These students will become the software developers and hardware engineers of tomorrow’s open source products. Because they will be well-versed in the use of open source technology, they will be able to readily collaborate with colleagues in other nations in which open source has already been adopted. They will play a great role in the evolution of open source.
If you’d like to know more about the Asian Penguins or would like to find out how you can help, visit their Web site listed below under Resources.
All information was retrieved from https://sites.google.com/a/csemn.org/asian-penguins/home.
One of the great benefits of mailing lists is that you have the opportunity to learn about new things. In this case, the new thing that I have learned about via the schoolforge-discuss mailing list is FisicicaLab, an open source educational application developed to solve physics problems. FisicaLab handles all of the mathematics related to physics, giving the user the ability to focus purely on physics. So, without further adieu, let’s take a closer look at this thought-provoking piece of software.
The graphical interface is similar to that of GIMP, incorporating multiple windows. Unlike GIMP, FisicaLab utilizes only two windows initially. The main window is called the Chalkboard and the other window is entitled Modules and Elements. The Modules and Elements tool enables users to add items to the Chalkboard and to modify those items. Buttons at the top of the Modules and Elements window allow users to toggle between different types of elements. (See the screenshot for a typical session). Additional windows open as needed.
FisicaLab allows users to manipulate virtual objects such a blocks, pulleys and forces. These can be handled and allowed to interact in a variety of ways, including, but not limited to, relative motion, collision and explosion. Other factors that can be adjusted include friction and force, among others. FisicaLab gets a high level of expandability via additional modules which users can install. These modules include, but are not limited to, kinematics of particles, dynamics of particles and calorimetry, ideal gas and expansion.
This brief article is written merely to inform and cannot do this wonderful application justice. If you teach physics, FisicaLab is designed with both instruction and learning in mind.
FisicaLab is available for Linux, Microsoft Windows and Apple MacOS.
GNU FisicaLab Home Page
GNU FisicaLab Manual. (n.d.). GNU General Public License. Retrieved from http://www.gnu.org/software/fisicalab/manual/en/fisicalab/index.html#SEC_Contents.
All images are from the GNU FisicaLab Web site.
I’ve recently come across a piece of open source technology that will not only take the struggle out of getting your kids to do schoolwork at home, but will also put them in control of this work while helping them to self-monitor and develop independence at the same time. AutoTeach will do all of these things. So, what is AutoTeach and how can it do all of this?
With AutoTeach Parent Tool, students earn credits which can be used to “purchase” time on the Internet. There are three components that make this happen. the first is the Credit Meter. The student logs onto this via his or her wi-fi device (tablet, game system, etc.). While this is running, the student can access the Internet. The next component is a Raspberry Pi. For those unfamiliar with Raspberry Pi, they are open source palm-sized computers consisting of a motherboard with a CPU and RAM, as well as audio, video, SD card (used as hard drive), USB and LAN ports. In short, they are fully functioning computers. The Raspberry Pi serves as router, Credit Meter and firewall. By default, the firewall only allows the students to access the third component of AutoTeach, the Credit Reader Web site.
The activities are just as engaging as they are educational. By completing activities to a predefined skill level, students can earn credits toward free Internet time. You may actually find your kids begging to do schoolwork. A really neat feature of AutoTeach is that credits can be awarded manually. This means that you could use it as a reward for completing chores or other activities that you would like to encourage. In terms of personal growth, students will have greater control over their learning and a greater enjoyment of it. Through monitoring their own progress and working independently, young people will develop a sense of independence as well as one of self-reliance.
Arguably one of AutoTeach’s greatest strengths is its capacity for growth. Developers will be constantly creating new plugins. There is also a development suite available, AutoTeach’s Development Sandbox, which will allow developers to create plugins on their own. The result is that potential for more plugins is limitless.
As you can see, I am very enthusiastic about this technology. So how do you acquire AutoTeach? It is available as a subscription. To learn more, check out some of the resources below to which I’ve provided links.
Cossé, C. (n.d.). AutoTeach your kids, advance education software development.
Thanks to Charles Cossé for permission to use the images that appear in this article.
I want to look at a fun application entitled LinCity-NG. As the name would imply, it is an open source clone of Electronic Artis’ (EA) SimCity. LinCity-NG has evolved quite a bit since my first encounter with it ten years ago. It has an aesthetically appealing interface and is highly customizable in terms of features and game play.
LinCity-NG is also a wonderful way for students to learn about both economics and ecology. My reasoning for this is that this game requires users to build a civilization. In order for a civilization to grow it must first survive and then expand. Surviving means that you must have a successful economy with employment, resources and trade. These things fluctuate during the game and to succeed, you must be able to compensate for them. In terms of ecology, as you expand, you will encounter various types of terrain, such as wetlands, that you must work around as removing them is very expensive. You must also be aware that civilizations generate pollutants. These pollutants must be dealt with responsibly in order to avoid repercussions. Keeping these factors in mind, let’s take a closer look at LinCity-NG.
When initially launched, LinCity-NG presents the user with a straightforward interface. The screenshot at left displays the main menu. Clicking the New option opens a menu allowing users to select a scenario. Available options include Beach, good times and bad times, among others. Personally, I like to start with an empty board and when I create my LinCity-NG academic unit (forthcoming), this will be required so that all students start at the same level in the game. If you’re experimenting with LinCity-NG, by all means try different scenarios. The titles are self-explanatory.
Once your game starts, you will be presented with a map of the terrain upon which a civilization must be built. There is a panel on the upper left-hand side of the screen that provides access to available actions and structures. In the lower left corner is what looks like the control buttons on a DVD player. These allow users to accelerate and pause the simulation or to run it at normal speed. Users can also access the main menu from here. In the lower right-hand corner, is a panel offering a map, some buttons below it and several tabs. Both tabs and buttons allow you to view various information about your civilization, such as economic standing and resource availability, among other things. The map is laid out in a rhomboid shape. Check out the screenshot at right for an idea of the initial layout.
In the beginning, users can create only the bare minimum in terms of structures for their civilization. As your civilization grows, more options become available. This is what would make LinCity-NG an ideal platform for learning. All learners start at the same level. Each could be provided with a rubric identifying what their society must have in terms of services and industry at specified points in game time. For example, “By simulation year 60, your civilization should have Residences and Farms powered by Windmills.”
Looking at the panel in the upper-left corner, each button represents a category. The top button allows you to toggle between the Query tool (mouse pointer),the Bulldozer and Water. Clicking on anything with the Query tool will provide information about that item in the little map window in the lower-right corner. The next tool on the panel allows you to iniitally build Residential areas. You can choose from one of three options, each of which affects the population levels differently. The button below this could best be described as basic resources. These include at outset Market (where jobs are created and goods exchanged), Farm (for food) and Water well.
The next button opens a menu that could be best described as social services. Initially, Monument (something to give the citizens pride in their community) is the only option available, but others include School, Fire Department and Sport (like a basketball court). Transportation is the next category. The only option available is Track (like a trail) at first, but others such as Road and Port can quickly be unlocked. Power sources are next and none of these are available at start up time. Windmills however can be readily earned to provide power to Residences and Farms, as I indicated above.
Resource sources are next. The options available at the beginning include Commune (a place where such goods as coal and steel are produced), Ore mine and Rubbish tip (landfill). Other choices that become available are Coal mine and Recycle (recycling center). Industries make up the final menu. Pottery is the only option available at outset (like all industries in the game, Pottery converts resources into goods). As the game progresses, users have access to Blacksmith, Mill, Light Industry and Heavy Industry. If you haven’t got all of that committed to memory, don’t worry. One of LinCity-NG’s greatest strengths is its integrated help. Just right-click on any of these options for more information about them.
I could write more on this stimulating application, but I leave it to you to explore LinCity-NG for yourself. Your students will be enrapt. There is one more academic aspect of LinCity-NG that I neglected to mention and that is creativity. Though you can use it to teach students about economics and ecology, one fun aspect for the educator is the opportunity to observe the worlds that students will create and how they vary. Student creativity is often one of the greatest rewards that educators can enjoy.
Sharp, G., Keasling, C. and Peters, J.J. (n.d.). LinCity-NG [software]. GNU General Public License.
OpenRocket is an application for virtually building and launching model rockets. This software was developed by Sampo Niskanen, who was a student at the Helsinki University of Technology when he developed OpenRocket as the focus of his graduate studies on open source software. OpenRocket is fun and easy to use. The online guide, Getting Started with OpenRocket. advises basing your rocket designs on existing products, so I chose to virtually create and launch an Estes Hi-Flier (kit number 2178) as shown in the image below.
OpenRocket launches with a pop-up window asking the user to provide rudimentary information about the rocket he or she plans to design (design name, designer and a field for comments). If desired, this window can be readily closed so that the user can begin working with the application.
The OpenRocket interface is very straightforward. A simple menu bar is at the top of the window, allowing users to perform common tasks (Open, Save, Undo, etc.). Below this are two tabs, Rocket design and Flight simulation. The Rocket design tab employs a kind of switchboard interface that allows users to select which model rocket components they would like to add to their build. The only three options available at start up are Nose cone, Body tube and Transition (a coupler that is tapered at one end). To the left of this switchboard is a window displaying a text-based tree-structure outline of your rocket. The lower half of the screen is the canvas upon which your design appears. The default is Side view, but users can toggle between this are Rear view. This canvas is flanked on top and to the left by rulers measuring centimeters. At the top of the OpenRocket window is a simple menu.
When a new component is added to your rocket, the Component configuration window opens providing information about the component’s shape, composition and mass, as well as offering options to modify the component. Additional tabs are available for configuring such categories as mass override, figure (illustration) style and a field for notes about the model. This feature can also be accessed by clicking on a component and choosing Edit from the switchboard menu just to the right of the outline window. Components in the outline area can be expanded to reveal sub-components or collapsed to hide them. Components can also be moved here by clicking on a component and dragging it to a desired location in the tree-structure. Furthermore, components can be modified using the switchboard immediately to the right of this window. Two really neat features included under the Analyze menu include Component analysis and Rocket optimization. These allow you to tweak your rocket’s performance.
Once you’ve added an engine, the fun begins, as the guide Getting Started with OpenRocket states, as you’re ready to enter into the simulation portion of the application. OpenRocket is well integrated with the model rocket industry in regards to measurements and sizes of various components. For example, when you are ready to select a motor, if you have properly configured your engine mount, only motors that will fit the engine mount will be listed. Once you have selected your engine (or engines), we’re ready to run a simulation. Click on the Flight simulations tab. The Flight simulations window has five buttons at the top of the screen allowing users to create, run and modify simulations. Below this is a pane in which are listed user-created simulations. Below this is the canvas showing the user’s rocket.
Clicking on New simulation opens the Edit simulation window. Under the Launch conditions tab, you can customize the simulation in terms of engine configuration, wind speed, atmospheric conditions and other launch conditions. When the launch is configured as desired, click the Run simulation button. A window with simulation information will flash on the screen. Click on the Plot/export button and this will open the Edit Simulation window. In this window, users can adjust various criteria relating to the simulation, such as launch conditions, simulation options and what types of data will be plotted. Once this information has been set, simply click the Plot flight button in the lower right corner and a window presenting a graphic representation of the rocket’s flight will open. What’s really fun is to tweak various rocket components and launch conditions to see how they affect a rocket’s trajectory.
So, what are the benefits to using OpenRocket? It provides a wonderful opportunity to build and test model rockets prior to launch. What this means to model rocket enthusiasts is that they will have a better opportunity to determine their rockets’ trajectories and, therefore, have a better chance at recovery. Plus, it’s a fun way to experiment with model rockets. Isn’t that really what it’s all about?
OpenRocket is available for Linux, Apple MacOS, Microsoft Windows and Android.
Niskanen, S. (2009). Development of an open source model rocket simulation software. Helsinki: Helsinki University of Technology. Retrieved from: http://openrocket.sourceforge.net/thesis.pdf
Pummill, J. et al. (n.d.). Getting started with OpenRocket. TRF Community. Retrieved from: http://comp.uark.edu/~jpummil/OR-Start.pdf