1. Grammar:
The Doubling Rule
When we add some letters to
the end of a word, sometimes
we have to double the last
consonant.
This is the doubling rule.
2. Grammar:
The Doubling Rule
When we add some letters to
the end of a word, the letters
are called a suffix. Sometimes
the suffix is /ed/, like when we
show the past tense of a verb.
walk + ed = walked
3. Grammar:
The Doubling Rule
Sometimes when we add the
/ed/ to a short word, with a
short vowel like hop, the /e/ in
the suffix /ed/ works like a
magic /e/ and changes the
word!
hop + ed = hoped
4. Grammar:
The Doubling Rule
rip + ed = riped This
is
pat + ed = pated
clap + ed = claped
slip + ed = sliped not
right
!
5. Grammar:
The Doubling Rule
We have to build a wall to stop the
bossy /e/ in the suffix /ed/ from
shouting over the consonant
and making the vowel long!
To do this we double the final
consonant – which makes the
wall thick and the bossy /e/ can’t
boss!
hop + p + ed = hopped
6. Grammar:
The Doubling Rule
rip + p + ed = ripped
pat + t + ed = patted
clap + p + ed = clapped
slip + p + ed = slipped
7. Grammar:
The Doubling Rule
Now you try!
bat + __ + ed = ________
wag + __ + ed = ________
hug + __ + ed = ________
8. Grammar:
The Doubling Rule
Now you try!
rub + __ + ed = ________
step + __ + ed = ________
jog + __ + ed = ________
9. Grammar:
The Doubling Rule
Now you try!
dig + __ + ed = ________
skip + __ + ed = ________
pop + __ + ed = ________
10. Grammar:
The Doubling Rule
Now you try!
zip + __ + ed = ________
nod + __ + ed = ________
hum + __ + ed = ________
