When Number 6 first started preschool, he had a very hard time transitioning from one activity to another. (not-your-average-mom.com)
These are two different types of sucking motions, and your baby may have a tough time transitioning from one to the other. (abckidsinc.com)
Parents can even use these tools to propose modifications to the schedule of parenting time transitions if an adjustment needs to be made. (ourfamilywizard.com)