When a child is having issues with sensory integration, you will see it in their behavior. They will become easily frustrated. They will become overwhelmed in some sensory environments, especially in some very busy environments, like birthday parties. School environments. Preschool environments. They can also have difficulties with learning. They can have difficulties socially and emotionally. Difficulties in preschool and learning to play with friends. Keeping themselves calm and happy. Listening and following directions. Ultimately, in elementary school, it can lead to difficulties in learning to read, learning to write, math, memory, and attention. Sensory integration can also occur in conjunction with other difficulties or diagnosis, such as, Attention Deficit, Asperger's, Autism, learning disability, dyslexia. They can have a motor skills delay. They can have gross motor, large motors, learning to crawl, run, jump, play, skip. They can also have trouble with fine motors like, holding a pencil and writing.