How should a Texas driving instructor teach a student about the 'Texas turnaround' (U-turn via frontage road)?

1. Texas turnarounds are illegal and should not be taught
2. Teach the student to use designated turnaround lanes on frontage roads, yield to oncoming traffic, check for pedestrians, and merge safely onto the frontage road traveling in the opposite direction
3. Speed through the turnaround without stopping
4. Only use turnarounds on empty roads