While preschoolers may not have important and time-sensitive activities to coordinate, putting the family schedule on a simple calendar and reviewing it with him can help him become familiar with schedule patterns and exceptions. Use color-coded markers to write events that are in different categories (such as preschool, meals or time with friends) so that he can interpret them without reading the words. Set aside time each week to discuss upcoming events and put them on the calendar together.
Establish consistent routines to help your child develop confidence in her understanding of what should happen next and how certain processes work. When preparing for a day at preschool or a visit to a friend's house, spend time together preparing the things she will want to take along and talking about the process of getting ready and going, as well as what the other place will be like and what she will do there. This sort of priming ritual can set a child's expectations and make unfamiliar situations easier for her to deal with.
A clean and orderly space makes it easier to maintain regular routines and will contribute to your child's sense of calm and well-being. Provide bins, drawers or other containers that your child can access to make it easier for him to help with cleanup. Talk together to define a few places for special toys or activities, and make sure to look at the room from his perspective to make sure that he has appropriate access to different items and areas.
Create lists to help your child remember tasks that she needs to accomplish, such as simple chores or the steps in a morning routine like brushing teeth and putting away pajamas. Represent each step or task with a picture and let your child cross the item out when it is finished. Use the list as a cue to help her stay on task when needed or to create incentives, such as having a play break once she crosses off two more pictures.