Lesson Goal:

Learn to express intentions and goals clearly using purpose clauses.

1. Warm-Up (3 min)

🗣️ Discuss:

• Why do you wake up early?

• Why do people learn new skills?

• What do you do to relax after work?

💬 Sample answers:
I wake up early to exercise.
People learn new skills so that they can get better jobs.
I listen to music in order to relax.

🎯 Focus: Purpose clauses explain why someone does something.

2. Presentation (8 min)

A. Purpose with Infinitives (same subject)

Used when the same person does both actions.

Common forms:

• to + verb

• in order to + verb

• so as to + verb (more formal)

💬 Examples:

• I study to improve my English.

• She left early in order to catch the train.

• He whispered so as to avoid waking the baby.

🧠 Tip:
Use these when the same subject performs both actions.

B. Purpose with “so that” (different subject OR focus on result)

Structure:
so that + subject + can/will/could/would + verb

Use when:

• the subject changes, or

• you want to highlight the result.

💬 Examples:

• I spoke slowly so that he could understand me.

• She saves money so that she will have enough for travel.

• They turned off the lights so that the baby would sleep.

🧠 Tip:
“so that” is the only one that always takes a full clause with a new subject.

3. Controlled Practice (5 min)

Choose the correct option: to / in order to / so that

1. I’m studying hard ____ pass my exam.

2. She got up early ____ she wouldn’t miss the train.

3. He works extra hours ____ earn more money.

4. They moved to the countryside ____ their children could grow up in a quiet place.

5. She turned off her phone ____ focus on her work.

6. He left the window open ____ the room would stay cool.

7. I’m learning English ____ get a better job.

8. She spoke loudly ____ everyone could hear her.

Answers

1. to

2. so that

3. to

4. so that

5. to / in order to

6. so that

7. to

8. so that

4. Transformation Practice (4 min)

Rewrite using the connector in brackets.

1. I exercise. I want to stay healthy. (to)
   → _______________________________________

2. She took notes. She didn’t want to forget anything. (so that)
   → _______________________________________

3. He left early. He wanted to avoid traffic. (in order to)
   → _______________________________________

4. They whispered. They didn’t want the baby to wake up. (so that)
   → _______________________________________

5. I saved money. I wanted to travel. (so as to)
   → _______________________________________

Sample Answers

1. I exercise to stay healthy.

2. She took notes so that she wouldn’t forget anything.

3. He left early in order to avoid traffic.

4. They whispered so that the baby wouldn’t wake up.

5. I saved money so as to travel.

5. Engaging Discussion (5 min)

Answer naturally using purpose clauses:

• Why do you study English?

• What do you do to relax after a busy week?

• What habits help you stay healthy?

• What do you do so that you can focus better?

• Why do people travel to other countries?

💬 Encourage full sentences:

• I study English to improve my communication skills.

• I drink coffee so that I can stay awake.

• I close my door in order to focus.

6. Extra Discussion (3–4 min)

Deeper prompts:

• What long-term goals do you have so that your future will be successful?

• What have you changed in your life to become happier?

• What do you avoid doing so as to stay productive?

7. Wrap-Up & Review (2 min)

🧾 Quick Recap
Purpose clauses express why you do something.

• to + verb (most common, informal)
  → I study to improve.

• in order to / so as to + verb (more formal)
  → She woke up early in order to catch the bus.

• so that + subject + can/will/could/would + verb
  → He saved money so that he could buy a car.

💬 Mini Challenge:
Say 3 sentences about your day using different purpose forms.