Do you have a student that is struggling in your class? Perhaps you are a resource teacher or math specialist and need a way to figure out how your student is dealing with numbers developmentally. It is important to meet these children where they are to be able to provide them instruction in their zone of proximal development (ZPD). This assessment will help you pinpoint exactly where to start working with your student and then guide you to know which experiences will be most effective in helping to fill in the gaps. A variety of worksheets and other forms are provided in this manual to make data collection and tracking easy.