The document discusses rules and provides examples of rules using "must" and "mustn't". It defines a rule as something written that is respected. Examples of rules include instructions that Sara must turn off her cellphone, that people mustn't smoke, and that one must wear a seatbelt. The document also lists sample school rules and homework activities involving writing rules for the home and completing sentences with "must" and "mustn't".

1. FOR Written
RULES

2. What is a Rule?
A sign
Something
written that we
respect
No cellphones
must mustn’t

3. Is this a rule?
must
A sign
A Written
Rule
Verb doesn’t change
Sara must turn off her cellphone.

4. Is this a rule?
A sign must
A Written
Rule
Verb doesn’t change
People Mustn’t smoke.

5. must
wear
Verb doesn’t change
She/he must wear seatbelts.

6. School Rules
1. Don’t arrive late You mustn’t arrive late.
2. Help your classmates. You must help …
3. Don’t copy other students’ work.
4. Don’t eat in class.
5. Study hard
6. Put your hand up to ask a question.
7. Be Polite.
8. Don’t write on the walls or desks.
9. Don’t talk in class.
10. Don’t throw litter on the floor.

7. 5. Write rules for the home. Use must or mustn’t
Watch tv Read a book
Clean your room
Play computer games Go to bed early
1. You must help you parents at home
2. You must … go to bed early
3. You mustn’t watch tv.
4. You must read a book.
5. You must clean your room.
6. You mustn’t play computer games

8. 6. Complete the sentences with MUST or MUST´NT
1. You mustn’t study.
2. you mustn’t cheat on exams.
3. In hospitals you must be in silent.
4. At the movies you mustn’t use your cellular phone.
5. You must eat healthy food.
6. you mustn’t be rude to your friends