Whiteboard, Chalkboard, Blackboard Technical Drawing Set Square

Whiteboard, Chalkboard, Blackboard Technical Drawing Set Square A whiteboard is a smooth, glossy writing surface used with dry-erase markers. It is commonly found in classrooms, offices, and meeting rooms. Unlike traditional boards, whiteboards do not require chalk and are easy to clean using a soft cloth or eraser. They are typically made from melamine, porcelain, or glass. Whiteboards promote a dust-free environment, making them healthier compared to chalkboards. They are widely used for presentations, brainstorming sessions, and teaching because of their neat appearance and colorful marker options. 2. Chalkboard A chalkboard is a dark-colored board (usually green or black) used for writing with chalk. It has been a traditional teaching tool for many decades. Chalkboards are usually made of slate or a board coated with a rough surface that holds chalk marks well. They are affordable and durable. However, they produce chalk dust, which may cause allergies or respiratory discomfort. Despite this, chalkboards remain popular in many schools due to their low maintenance cost and long lifespan. 3. Blackboard A blackboard is a type of chalkboard specifically black in color. It functions the same way as a chalkboard but is traditionally made of natural slate stone. Teachers use white or colored chalk for visibility. Blackboards were widely used before whiteboards became common. Although modern materials have replaced natural slate in many cases, the term “blackboard” is still commonly used to describe chalk-writing surfaces. 4. Technical Drawing Set Square A technical drawing set square is a triangular measuring tool used in drafting and engineering drawing. It helps create precise angles such as 30°, 45°, 60°, and 90°. Set squares are usually made of plastic or transparent acrylic for accuracy. They are essential tools for architects, engineers, and students learning technical drawing.