How to use the lerp function with rotation? (C#)

First of all, I'm kind of an idiot. I don't fully grasp the concept of position changing; rotating especially. I went ahead and replaced tranform.position with .rotate in the official unity lerp tutorial.

using UnityEngine; using System.Collections;

public class rotate : MonoBehaviour

{

 public float speed;
 
 private Vector3 newPosition;

 
 void Awake ()
 {
     newPosition = transform.rotate;
 }
 
 
 void Update ()
 {
     PositionChanging();     
 }
 
 
 void PositionChanging ()
 {
     Vector3 positionA = new Vector3(0, -20, 0);
     Vector3 positionB = new Vector3(0, 20, 0);
     
     if(Input.GetKeyDown(KeyCode.Q))
         newPosition = positionA;
     if(Input.GetKeyDown(KeyCode.E))
         newPosition = positionB;
     
     transform.rotation = Vector3.Lerp(transform.rotate, newPosition, speed * Time.deltaTime);
 }
 

}

Didn't work. Not too sure what I was expecting. If someone would be so kind as to show me the proper way to rotate and object to a degree with lerp, and better yet, explain how and why. It would be a huge step in my learning.

Thanks so much!

• Michael