The chalkboard is a widely used visual aid that allows written materials to be easily erased and modified as a lesson progresses. Effective chalkboard skills include legible handwriting, neat presentation, and organized structure of information. Key components are distinct lettering, uniform line thickness, adequate spacing between letters, words, and lines, and ensuring text can be read from the back of the classroom. Proper organization involves systematic planning of space and sequencing of items. The teacher should also consider continuity of points, brevity, appropriate diagrams, underlining important ideas, and fully cleaning the board before beginning.