At the age of 3, children are developing rapidly and learning new skills every day. Here are some things a 3-year-old should know based on the search results:

Language and Communication Skills

• Speak in 2-3 word sentences and progress to 4-5 word sentences
• Use "please" and "thank you"
• Refer to themselves by their own name
• Name colors
• Follow commands with 2-3 steps

Thinking and Mental Skills

• Understand size differences such as big and little
• Understand past tense (yesterday)
• Understand long sentences
• Count and understand the concept of counting
• Sort objects by shape and color
• Complete age-appropriate puzzles
• Recognize and identify common objects and pictures
• Copy circles
• Do 3-4 piece puzzles
• Know what "two" means
• Make up stories and play make-believe with animals, dolls, and people

Movement Milestones

• Walk up and down stairs, alternating feet
• Pedal a tricycle
• Hop and stand on one foot up to 5 seconds
• Kick a ball forward
• Throw a ball overhand
• Catch a bounced ball most of the time

Social and Emotional Development

• Start to share and like to play with other children
• Take turns
• Show feelings in socially acceptable ways
• Have temper tantrums less often
• Show affection for familiar family...