Play-based learning is considered to be a more effective and developmentally appropriate approach for preschoolers compared to overly structured learning methods like worksheets. This is because play allows children to explore, experiment, and discover new things in a relaxed and enjoyable environment. It also helps to promote creativity, critical thinking, problem-solving, and social skills. Additionally, play-based learning takes into consideration the individual needs and interests of each child, allowing them to learn at their own pace and in their own way.