France and the United States have differing school systems - French students start school earlier at ages 2-3 and progress through four schools with grades on a scale of 0-20, while US students typically begin at ages 3-4 and progress through three to four schools graded on a scale of 0-100. French schools do not sponsor extracurricular activities and students often repeat grades if they do not meet standards, whereas US schools sponsor extracurriculars and may place struggling students in summer school instead of holding them back.