Your child is considered a preschooler if he/she is aged 3-4 years old. Preschoolers can use sentences comprising of six or more words. His/her communication skills are well developed that even strangers can understand what he/she means. He/she can also draw shapes. A preschooler is also able to make friends with other kids and can do things like brushing his/her teeth, dressing and washing hands. The preschooler has also mastered the use of an adult toilet, with boys standing instead of sitting when peeing. Most preschoolers also stay dry most of the time.