In
the
first
years
of
a
child'
life
,
many
important
milestones
are
reached
.
By
the
end
of
the
first
year
,
a
baby
will
have
already
acquired
some
social
skills
.
He
will
enjoy
people
,
and
will
also
test
parental
responses
to
his
behaviour
.
For
example
,
what
do
my
parents
do
if
I
refuse
food
?
In
terms
of
movement
,
an
infant
will
be
able
to
reach
a
sitting
position
unassisted
and
put
himself
up
to
stand
.
He
may
be
able
to
walk
momentarily
without
support
.
As
far
as
communication
is
concerned
,
he
be
able
to
use
simple
such
as
shaking
his
head
for
no
,
say
momma
and
dadda
and
he
will
try
to
imitate
words
.
When
it
comes
to
cognative
development
,
he'll
be
able
to
find
hidden
objects
easily
and
use
objects
correctly
such
drinking
from
a
cup
.
By
the
age
of
two
or
three
,
the
infant
has
reached
the
stage
.
In
terms
social
skills
,
these
means
he's
becomming
more
,
which
may
result
in
the
ocassional
tantrum
.
However
,
he
is
known
to
take
turns
in
games
and
spontaneously
express
his
affection
.
His
physical
development
will
also
have
increased
significantly
,
as
he
can
now
move
around
a
lot
faster
and
even
run
.
He
can
also
up
stairs
or
onto
relatively
low
obstacles
and
even
ride
a
small
tricycle
.
However
,
he
will
still
be
rather
unsteady
on
his
feet
at
times
.
When
it
comes
to
language
and
communication
,
he
can
now
understand
most
sentences
and
uses
four
and
five
word
sentences
.
In
terms
of
cognitive
development
,
he's
learned
to
play
make
believe
games
and
uses
his
.
He
has
also
mastered
a
skill
of
sorting
objects
according
to
their
shape
and
color
.
Between
the
ages
of
six
and
twelve
,
a
child
reaches
what
is
termed
middle
childhood
,
and
they
will
stay
in
this
phase
until
the
reach
adolescence
.
In
middle
childhood
,
children's
development
is
more
affected
by
the
and
the
child's
world
expands
to
include
friends
,
teachers
,
sports
trainers
and
so
on
.
Children
develop
at
various
rates
,
and
while
some
children
in
middle
childhood
seem
very
mature
in
terms
of
their
emotional
and
social
skills
,
others
seem
very
.
As
far
as
physical
milestones
are
concerned
,
during
this
stage
,
growth
is
steady
but
less
rapid
than
during
the
preschool
years
.
There
are
some
major
changes
occuring
at
this
stage
,
as
baby
teeth
will
come
out
and
permanent
adult
teeth
will
grow
.
As
the
mouth
is
not
yet
fully
developed
,
this
may
cause
overcrowding
.
will
reach
maturing
in
both
size
and
function
.
In
terms
of
their
cognitive
ability
,
children
at
this
stage
master
the
skills
of
sequencing
and
ordering
which
are
essential
for
maths
.
By
the
end
of
this
period
,
children
should
have
acquired
effective
reading
and
writing
.
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