+5
Witch - nice twist on the Freaky Friday premise. The episode both makes fun of cheerleading and centers on it, which maybe undercuts the care factor a bit. Not that we should ever pass up an opportunity to make fun of cheerleading, just story-wise it weakens the impact a little. Also interesting that we're already branching out from vampires as the bad guys. This is cool, as it gives the series more room to grow, but it happens so early after the stuff with The Master that it feels like that ball got dropped.
Teacher's Pet - Agreed with Godoggo that it's a bit flat. That little scene where Buffy is held after class and the teacher gives her the pep talk is really sweet. That was all that was needed to make her (and us, at least a little) care about him before he's offed. I love the creepy bit where Buffy finds the dead guy's glasses before they know he's dead.
It's subtle, but there's a parallel here between Buffy's interaction with a caring teacher and Xander attracting a female (of whatever species) that both of them are looking for normal human interactions and get disappointed in a big way, due to their situation on a Hellmouth. In terms of power, this is establishing why it's needed. In terms of character, we see people who want really basic things, but those desires are shot down. I'm making a mountain out of a mole hill with this, but I don't think these things happen randomly in the writing.