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The دیدن لینک ها برای شما امکان پذیر نیست. لطفا ثبت نام کنید یا وارد حساب خود شوید تا بتوانید لینک ها را ببینید.
is a white note board named for its ability to be erased with a dry tissue, board eraser, or any soft dry material such as a paper towel or cloth. The secret is in the board's special dry-erase markers, that can be easily wiped clean without water or rubbing. Dry erase boards are often installed in classrooms in lieu of chalkboards.دیدن لینک ها برای شما امکان پذیر نیست. لطفا ثبت نام کنید یا وارد حساب خود شوید تا بتوانید لینک ها را ببینید.
are essentially whiteboard royalty because they are built with durable tempered glass. They are highly resistant to damage and are very hard to destruct. Glass is an entirely impermeable surface material, which means that any residue is easily wiped away without using moisture or other materials to assist the user.A دیدن لینک ها برای شما امکان پذیر نیست. لطفا ثبت نام کنید یا وارد حساب خود شوید تا بتوانید لینک ها را ببینید.
is a board for posting notices. Bulletin boards reflect a class or school’s identity. In and outside the classroom, bulletin boards that make learning visible show what we value, offer opportunities for reflection, help learners make connections within and across subject matter, and contribute to a shared and public body of knowledge.A دیدن لینک ها برای شما امکان پذیر نیست. لطفا ثبت نام کنید یا وارد حساب خود شوید تا بتوانید لینک ها را ببینید.
(also known as a blackboard) is a reusable writing surface on which text or drawings are made with sticks of calcium sulphate or calcium carbonate, known, when used for this purpose, as chalk. Blackboards were originally made of smooth, thin sheets of black or dark grey slate stone. There are some advantages to using a chalkboard. Chalk requires no special care. Chalk is an order of magnitude cheaper than whiteboard markers for a comparable amount of writing. It is easier to draw lines of different weights and thicknesses with chalk than with whiteboard markers. Chalk has a mild smell and is mostly biodegradable.دیدن لینک ها برای شما امکان پذیر نیست. لطفا ثبت نام کنید یا وارد حساب خود شوید تا بتوانید لینک ها را ببینید.
are used to place the flip chart which is a stationery item consisting of a pad of large paper sheets. A flip chart is It is typically fixed to the upper edge of a whiteboard, or supported on a tripod or four-legged easel. Such boards are commonly used for presentations.