About pediatrics assignment and examination, due to internet problem, I put my key points here, which are important for future all kinds of examinations and your clinical practice. Today's and Feb 17's classes are very basic and classical. Little advances are there. Key points are: 1. The rules of growth and development. 2. The terms of age groups, like "infant". 3. How to calculate weight and height or length. This may be tested in the form of multiple choice questions and case analysis for judging malnution or overweight. 4. Milestone of childhood development, for example, the average roughly starting time for head raise, siting, and walking. These are useful for medical history taking and case analysis exam. 5. Vaccine schedule is also useful for history taking and multiple choice questions. 6. Teeth eruption starting time. 7. What is bone age. 8. The relationship of head circumference and chest circumference. For excellent examination score, try to find pediatric examination questions in Chinese website in Chinese and USMLE. Examination practice makes high score. In real world, the important knowledge maybe is too easy to make questions. Those difficult questions is possible only for test your memory and the ability of resolving trick intelligence problems. Our teachers are not allowed to make questions too easy. During answering questions you can enhancer your basic knowledge and conceptions. Pediatric teacher, professor Guo-Ping Zhou