How does a chalkboard work




















A minister, Hall founded Vermont's Concord Academy, one of the first formal training schools for American teachers. The early chalkboards were simple pine boards painted black. In other cases, a combination of lime, plaster of Paris a white powdery substance , and lampblack fine black soot was spread on the classroom wall. Most modern chalkboards are made of porcelain enamel.

In this particular manufacturing process, a tough and durable material such as steel is used as the base. There are several thicknesses of steel used in the manufacture of chalkboards, but the most common is gauge. Another crucial element is silica, a crystalline compound derived from quartz or similar minerals.

Found in the crust of the earth, silicon is a tough compound and is called silica when combined with oxygen. Silica is found in most rocks and is a common ingredient in many glass and ceramic products.

The surface of a chalkboard is usually a blend of inorganic compounds such as a powdered glass opacifier and oxides, an organic element that provides color to the coating material. Chalkboards can be manufactured in a variety of sizes, styles, and colors.

The most common hues are green and black, although shades of brown, blue, and gray are also available. They can be customized during the manufacturing process to include special graphic elements. A music department of a college or university, for example, might request classroom chalkboards with musical staffs imprinted on the surface. A basketball team might use a chalkboard with a court layout to go over game strategies. Such lines are typically painted on the surface, but may also be fused onto the enamel during the manufacturing process.

The size of the board may be as large as " x 48" for classroom use; 42" x 25" for basketball court layout; or 72" x 48" for stand-alone, moveable boards. The manufacturing of porcelain enamel chalkboards falls under the category of industrial ceramics, and manufacturers of the product adhere to standards set by the Porcelain Enamel Institute.

One important guideline of this organization is its gloss standard. Break your presentation into manageable parts and give students a chance to deal with facts and concepts as you present each part, or just afterward. Then verbally outline the next part of your presentation. If you don't do this, your students may be copying blindly, without any idea of where you are going. Do not talk to the chalkboard and do not obstruct their view of what you have written—write, then talk. Script is very difficult to read.

Use upper and lower case letters. The letters should be one inch tall for each 10 feet of viewing distance. Close the blinds if necessary. If there are chalkboard lights, turn them on.

Be certain that the colors used are visible from the back of the classroom. Do not use more than four different colors at a time. One way to do this is with the "pounce" technique. To draw a map on the board, find a map of appropriate size and use an instrument with a serrated edge like a pizza cutter to trace around the borders. Tape the map to the board and hit the hole with an eraser full of chalk dust.

Remove the map and the outline remains. You can easily "connect the dots" during class. You can determine your effectiveness at the board in several ways:. And remember that chalkboard is a great organization tool too — check out our cleaning closet!

Could you please share where you got the cute chalkboard with the arrow on top? I picked it up at a local store in Lynden, Washington — Grandiflora. Thanks for sharing on craft schooling sunday, i see the chalkboard craze also involves some planning and good art skills, so much fun! Such a cool tutorial! I recently did a post on teaching yourself how to hand letter, and this would be such a fun project to try out! Thanks for sharing, tweeting and scheduling to pin! Thank you for such a comprehensive guide.

Now that I know a little more, I think I need to start looking for a good quality chalk board. Thanks for all these tips! I bought a chalk marker the other day and used it for the first time. I love it for the smaller chalkboards, works great! Love it!!! I love your big chalkboard with the towel hanger on it! I am slowly working on my hand lettering so I can try to do chalkboard signs like this. Thanks for all the helpful tips! Thanks so much for all the great tips! Thanks for sharing such a great post.

Pinned and tweeted! Thank you so much for sharing this with us at our linky party. Happy Saturday! Lou Lou Girls. This is awesome! I learned the hard way that Magic Eraser works. I must have tried everything in between!

I wish I had read this first. Fabulous tips. Great pics and tips! You have been chosen to be one of our features! So make sure to come back and check it out as well as link up another awesome article! Thanks for all the hints and tips! Thanks for sharing at the Inspiration Spotlight party. Hope to see you again soon. Jenn, Thanks for the easy tutorial. I will be be doing my first craft fair and I want to put my logo on a chalkboard.

After reading your post I think I want to use both the barkers because I want a more permanent result. Do you know if there is anything I can use to keep the design from removing?

Good luck with your craft fair! I used this post to create the first chalkboard message I ever really loved. Thanks to your post I know how to! Thank you for sharing your knowledge! This is great. I just bought some chalk boards at Big Lots. I am doing my kitchen Bistro Style and they had some really cute ones. They even had a big one with the Eifel Tower. What do you recommend using on chalkboard vinyl if you DO want certain lines to be permanent?

I can use chalkboard pens for the month and days so they are not permanent. Thank you in advance for any information information you can provide me! I like Chalk Ink pens.

They have two lines — the wet wipes that come up with water and the Artista Pro lines which needs an ammonia based cleaner to remove it so its more permenant.



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