This documentation describes how a construction project near a preschool provided an opportunity for learning. The children were curious about why the bumpy road near their school was being repaired. Teachers explained that workers were making it smooth. This prompted the children to recreate the road smoothing process using materials like sand, stones, and bamboo rollers. Through play and experimentation, the children demonstrated their understanding of how to transform a rough surface into a smooth one. The experience helped develop the children's vocabulary, problem-solving skills, and observation abilities.