Timing
is
important
for
revision
.
Have
you
noticed
that
during
the
school
day
____________________
get
times
when
you
just
don't
care
any
longer
?
I
don't
mean
the
lessons
you
don't
like
,
but
the
ones
you
find
usually
find
OK
,
but
on
some
occasions
you
just
can't
be
bothered
with
it
.
You
____________________
have
other
____________________
on
your
mind
,
be
tired
,
restless
,
or
looking
forward
to
what
comes
next
.
Whatever
the
reason
,
that
particular
lesson
doesn't
get
100
percent
____________________
from
you
The
same
is
true
of
revision
.
Your
mental
and
physical
____________________
are
____________________
.
If
you
try
to
revise
when
you
are
tired
or
totally
occupied
with
something
else
,
your
revision
will
be
inefficient
and
just
about
worthless
.
If
you
____________________
it
feeling
fresh
,
alert
and
happy
,
it
will
be
so
much
easier
and
you
will
learn
more
,
faster
.
However
,
if
you
make
no
plans
and
just
____________________
in
a
little
bit
of
revision
when
you
feel
like
it
,
you
probably
won't
do
much
revision
!
You
need
a
revision
timetable
so
you
don't
keep
____________________
it
____________________
.
