What does it mean for nurses to apply for grades? What level does it mean to be a nurse? Because nurses are divided into the following three levels: primary: mastering the basic knowledge of conservation, professional cognition, job responsibilities, pre-school education knowledge, children's physiological system development, children's psychological development characteristics, common first aid knowledge, safety, guidance in children's life management (washing hands, going to the toilet, eating, sleeping, dressing, wearing shoes, brushing your teeth and washing your face, personal appearance, and developing hygiene habits), disinfection of daily hygiene and cleaning work, and daily procedures. Ask, check, divide meals, disinfect the desktop before meals, introduce recipes during meals, guide meals, give children a bath after meals, care or guide outdoor activities, take care of safety, replenish drinking water in time, wash hands and go to the toilet after activities, guide or care for children before leaving the park, remind parents to take them home for washing one month, and clean pillows for two weeks), general knowledge of infant health care, educational activities and management organized by the class teacher, and daily routine records. And project management in class life. Obtain a junior nurse certificate after passing the nurse skill examination. Intermediate: on the basis of junior nurses, further master professional knowledge. Knowledge storage of infant health care, common first aid operations, familiarity with nurses' practice, guidance on infant life management, skilled disinfection methods and proportions, prevention of infant diseases, special management guidance for frail children, obese children and special children. Advanced: rich experience and knowledge reserve, professional skills guidance, more advanced nursing management guidance, life management guidance, nursing professional skills. I hope my answer can help you.