Improving handwriting on whiteboards and chalkboards can be achieved through consistent practice and specific techniques. Utilizing the entire arm instead of just the wrist allows for better control and larger, more legible letters. Establishing points of reference on the board, such as dividing it into sections, helps maintain straight lines and consistent letter sizes. Practicing with larger writing on a whiteboard or chalkboard, as opposed to standard paper, can enhance familiarity with the medium. Preparing notes in a structured manner, such as dividing the page into thirds, can also aid in organizing content effectively. Overall, focusing on arm movement and structured practice leads to improved handwriting quality on larger surfaces.