How to study geometry and a protractor to print
Geometry, like every exact science, does not suffer himself to neglect. And to help to know the basics of it, children should spend a small quest to needlework. Its main topic will be: how to make a protractor. For this you will need: scissors, glue, A4 paper, dense cardboard, pencils, markers, paint, brushes, various decor, printer, well, where do without a ton of patience and bags of inspiration! The necessity of performing a task in front of the child it is possible to argue the absence of such an important meter of the corners in the store or to stimulate him more than usual methods.
The first thing that will fall solely on your shoulders will be the preparation of the template. At the present time to find a suitable variant it will not be difficult. If you own a graphics editors, you can create a unique sample with your family photos, names, favorite cartoon characters. But don't get carried away, because you only get a colored paper-protractor – print it out and hang with elements of learning will be disrupted.
A much better solution would be to just prepare the contour with a digital scale, which will be painted and otherwise improved. It is also worth to decide on which protractor printable, circular for ease of display, the semicircle with values from 0 to 180 degrees. If such simple methods are not for you, just go to performance techniques in rational trigonometry.
Of the history and a bit about the present
Before a final decision is made about which protractor to print, you can tell your child about the history of this tool (he hails from ancient Babylon), to introduce the sexagesimal system of calculation and its fundamental concepts – the degree, minute, second.Not be amiss to touch upon the application of angles in the modern society of geodesy and cartography, construction, engineering, etc. to show the main types of angles — acute, obtuse, straight, detailed, and also explain the difference between them. Encouraged to propose independently to display these angles, in order to use them to create drawings of those or other things. While this is true, check the protractor to print out: it is necessary to ascertain the quality of the template prepared in advance, and its high resolution. The printer should also display the data without distortion and distortion. May need cleaning or adjustment.
After deciding on what protractor to print, you only click on the "Print" button (you can specify multiple copies), and then cut out detail on the contour.Should show care, because any inaccuracies will be on view. And then proceed to the decoration of the protractor. For this fit anything option just depends how much you will enjoy this business.
All kinds of coloring compositions, cotton threads and ribbons of different shades, wool, cotton wool, stickers, beads, rhinestones, and bows will find favor, because in this case the excess will not be a disadvantage. After the process the artistic value of the protractor will increase at times, it can be glued on cardboard and make a hole at the point where measurements begin. Despite the fact that this self-made instance can be less convenient to use than its clear counterparts of factory manufacturing, it will not leave anyone indifferent thanks to nice appearance and original design. Like the parent-child activities will give you many pleasant moments in the future.