If your child has an intellectual disability or a developmental delay, these challenges can impact his or her cognition, social development and learning as well as his or her day-to-day functioning, including self-care, community living skills and communication of wants and needs. A developmental delay includes characteristics of an intellectual disability, but this diagnosis is reserved for children younger than five who may not be able to be reliably assessed in cognitive domains. These children have a number of weaknesses in meeting developmental milestones. An intellectual disability (ID) is a disability that impacts both intellectual and adaptive development and functioning. ID is present first in the developmental period. Challenges must be conceptual, social and practical, according to the current Diagnostic and Statistical Manual (DSM-5). Children with intellectual disabilities tend to learn much more slowly than would be typical. These children can and do make progress, but this progress is not at the same rate as the progress of other learners. Speaking, walking, kicking a ball, playing and engaging with others may all be delayed. You may describe your child as a really hard worker who struggles. You may see that he or she is more immature than peers, needs more help than others and just doesn’t get it as quickly as other children.