using (var context = new SchoolContext())
{
context.Database.Log = Console.Write;
var standard = context.Standards.Add(new Standard() { StandardName = "1st Grade" });
context.Students.Add(new Student()
{
FirstName = "Rama",
StandardId = standard.StandardId
});
context.SaveChanges();
context.Courses.Add(new Course() { CourseName = "Computer Science" });
context.SaveChanges();
}