Drawing a flat plan of a kindergarten staircase involves using architectural drafting techniques. Start by sketching the basic outline of the staircase, including the steps and landing areas. Ensure the scale is accurate and that the dimensions are to scale. Include handrails and guardrails as per safety regulations. Label each part of the staircase and provide dimensions for steps and landings. Use a top-down view to represent the staircase in a horizontal plane.