Key milestones are essential markers of a child's development and typically include:
1. Motor Skills: Rolling over, sitting up, crawling, walking, and eventually running. 2. Cognitive Skills: Recognizing faces, understanding cause and effect, and problem-solving. 3. Language Skills: Babbling, saying first words, forming simple sentences. 4. Social-Emotional Skills: Smiling, showing affection, and playing with others.
