The lesson focused on the practical steps for bottle-feeding a baby while ensuring the safety and hygiene of both the caregiver and the child. Emphasis was placed on sterilizing the bottle and positioning the baby correctly, with the head higher than the legs, to prevent discomfort and reduce the risk of ingesting air. If a baby cries during feeding, it is recommended to consult a doctor, as this might indicate issues like reflux or an inappropriate nipple size.