PHYSICAL DEVELOPMENT
Infant (6-month-old)
Preschooler (4,5 years old)
1. Rolls from tummy to back & may
begin rolling from back to tummy
1. Stands on one foot for 10 seconds
or longer
2. Pushes arms straight when on
tummy
2. Hops, and may be able to skip
3. Begins to sit with support
3. Catches a bounced ball most of
the time
4. Supports weight on legs when
standing with support
4. Uses scissors
5. Holds a toy in both hands at once
5. Jump over objects and climb
playground ladders
6. Can use toilet on own
7. Get dressed with minimal help
(zippers, snaps, and buttons may still
be a little hard)
8. Copies a triangle and other
geometric shapes
COGNITIVE DEVELOPMENT
Infant (6-month-old)
Preschooler (4,5 years old)
1. Looks around at things nearby
1. Counts ten or more things
2. Brings things to mouth
2. Starts to understand the concept
of time
3. Shows curiosity about things and
tries to get things that are out of
reach
3. Can print some letters or numbers
4. Begins to pass things from one
hand to another
4. Remembers parts of a story
5. Understands the idea of “same”
and “different”
6. Knows about things used every
day, like money and food
SOCIAL EMOTIONAL
DEVELOPMENT
Infant (6-month-old)
Preschooler (4,5 years old)
1. Knows familiar people
1. Wants to please friends
2. Enjoys looking at self in a mirror
2. Wants to be like friends
3. Laughs
3. More likely to agree with rules
4. Plays by grabbing foot when laying
on back
4. Would rather play with other
children than alone
5. Cooperates with other children
6. Is sometimes demanding and
sometimes cooperative
7. Talks about what he or she likes
and is interested in
Own experience

I have two children, it’s a boy and a girl. My son is 4,5 y.o. and my daughter is
6 months old. I compared them in 3 different types of developments. And
knowing experience with my first child, my second child is similar to our son.
As she grows, I can see clearly all 3 types developing, especially the physical
aspect, because she can see how her brother runs around. Our son does
almost all the things that he should do 5 years old child, except drawing, he
can write some numbers and shapes, but for a long time.
References:

Rathus, Spencer A.. Childhood: Voyages in Development (p. 98). Cengage
Learning. Kindle Edition.

Virtual Lab School. Retrieved July 5, 2022, from
https://www.virtuallabschool.org/preschool/social-and-emotionaldevelopment/lesson-2