By age three, most children:
Draw a circle, when you show them how
Avoid touching hot objects, like a stove, when you warn them
By age four, most children:
Name a few colors of items
Tell what comes next in a well-known story
Draw a person with three or more body parts
By age five, most children:
Count to 10
Name some numbers between 1 and 5 when you point to them
Use words about time, like "yesterday," "tomorrow," "morning," or "night"
Pay attention for 5 to 10 minutes during activities. For example, during story time or making arts and crafts (screen time does NOT count)
Write some letters in their name
Name some letters when you point to them
Games to play with 2-3 year old Toddlers
Games to play with 4-7 year old children
Introducing addition
Introducing patterns
Introducing sorting
Introducing size concepts
Spatial awareness activities
Activities with patterns
https://www.lpehochiminh.com/en/cognitive-development/
https://developingchild.harvard.edu/resources/handouts-tools/brainbuildingthroughplay/
https://dayearlylearning.org/blog/10-brain-boosting-activities-for-four-and-five-year-olds/
https://www.apa.org/act/resources/fact-sheets/development-5-years
https://www.virtuallabschool.org/preschool/cognitive-development
https://qualitystartsbc.org/preschooler-cognitive-activities/