Preschool report cards and progress reports typically measure the level of skill a student is showing in broad study areas without a specific, concrete grade. Examples of this include assessments such as "I" to represent a skill the child can regularly do without adult supervision, "S" for satisfactory development, "B" for a skill in which the child has recently begun to show interest, and "N" for skills the teacher has not observed the child showing.
The nature of the exact skills measured on the preschool report card may vary by the student's school and even the student's age. The exact rubric used to assess the child may be mandated by his school or may be customized by his teacher.
An example of a satisfactory skill is a child consistently using imaginary props as part of a dramatic exercise or game, indicating that he has satisfactory creative development.
An example of a beginning skill is a young child who has begun to move a pencil around on paper without paying much attention to what he is doing, showing he is beginning to show an interest in writing.
The "not observed" assessment may literally refer to a skill the teacher simply has not seen the child use or may be used to indicate the child is not satisfactorily participating in a specific task.