 Welcome to this episode of Door Hardware Nerds. I'm your host Mia Merrill. Today I want to talk to our teacher friends about how they can safely check that their door is locked without stepping into the hallway, especially if there's an intruder situation. So come along on the journey. We're going to do a little bit of education about types of locks that you might find on your classroom and then how to safely check that they're locked. So there are two main types of locks that you might find on your classroom. These are our mortise locks and each are going to have a different type of latch. And the reason the latch is important is because that's what I want you to check when you're checking that your door is locked or unlocked. So let's have a close up of what those look like. So you can see here a mortise lock is going to have sort of a square latch and I'll show you a different one in a minute. And our board locks have sort of a rounded and then squared off at the edge. It's a much smaller latch than our mortise locks. So there's two types of lever functions when your door is locked. You could either have a rigid lever which means your lever doesn't rotate when it's locked or you could have a freewheeling lever and that means your lever will still rotate even when it's locked. What you should be looking for is what happens with your latch. So when your door is locked your latch should not come in. So rather than you walking into the hall shutting your door and checking is your door locked, what I want you to do instead is this. I would peek my head and my arm outside. I would rotate. My lever moves. Is my latch also moving? Yes, my latch is moving in. I need to now lock the door. On a mortise lock I'm going to lock it up here. On a board lock I'm going to lock it here in the lever. I lock it. I check it again. My latch is not moving so I pull everything back in. The last thing I want you to do and I want you to do this regularly is I want you to check that nobody has shoved anything into this strike. No straw wrappers, no napkins, nothing. Your latch is meant to go in here and that's how it's going to keep your door secure. So I hope what we covered today can help give you some peace of mind and stop you from going into the hallway to check if your lock is locked. If you have questions please leave them down below. Thanks for watching.