Simplify instructions. Ask clarifying questions to ensure the child understands instructions and have the child restate his understanding. Write difficult or new vocabulary on the board. Encourage the child to underline difficult words in textbooks or on written instructions and discuss those words with him.
Teach ways to make memorization easier, such as mnemonic devices and acronyms, to assist the child with learning difficult concepts. Use several examples when explaining new concepts.
Use a cross-section of visual, oral and hands-on methods to reinforce learning. For example, verbalize what is being written on the chalkboard or use pictures to complement what is being taught verbally. Allow a child to perform a task hands-on instead of having him watch the teacher demonstrate it, since many children with intellectual disabilities learn through their sense of touch.
Give encouragement when a child with intellectual disabilities is showing effort. Spend time one-on-one with the child to monitor his progress.