By the end of the 1990s, whiteboards outsold chalkboards by a margin of up to four to one. Even digital whiteboards—computerized display boards with interactive features—outsold chalkboards by the turn of the millennium. Since then, chalkboards have all but disappeared from schools.

1. Accessibility: In many developing countries, chalkboards far outnumber whiteboards because they are easier to access. They are very popular in education segments because the running cost of chalkboards is much less expensive compared to markerboards or glass boards. Chalk is also less expensive than markers.”

The chalkboard does have its share of disadvantages, as well. For one, the chalk, which is simply compressed dust, can bother some educators and students with allergies, not to mention land on top of other school equipment that is dust sensitive, such as computers and microscopes.

Dry erase boards are not just one thing. There are lots of different kinds, and only the high end ones are expensive. That is because they are made of a piece of aluminum coated with white ceramic. The aluminum and ceramic are expensive, and the process that takes a lot of energy.

Five Of The Most Common Dry Erase Surfaces

• Porcelain (or Enamel-on-Steel): Porcelain surfaces are considered to be a top-tier product when it comes to dry erase capabilities.
• Melamine: Melamine is one of the most inexpensive dry erase surfaces.
• Tempered Glass:
• Laminate (Paper & Film):
• Proprietary Steel Coatings:

Best Mobile Whiteboards

• Amazon Basics Dry Erase Mobile Whiteboard Easel. The first freestanding dry erase board on the list, this option from AmazonBasics is on wheels.
• SLEEKFORM Mobile Double Sided Dry Erase Magnetic Giant White Board.
• ARCOBIS Small Dry Erase White Board.
• STOBOK Magnetic Dry Erase Board with Stand.

This depends on the quality of the board and its construction, so it can vary widely. Plastic boards will probably last from 1-5 years, while more durable and better constructed boards can last from 10-20 years or even longer.