That was me today. We have spent the last couple days going through a three part gas law lab and due to circumstances beyond anyone's control, we ended up talking about all three graphs at once today.
Big mistake. Huge. I have to go shopping now...
Every graph we make, we write the equation for the line. At first, when the kids stared at me with those blank looks, I chalked it up to not being around much math in the last few weeks. Now, we are trying to write our fifth, sixth and seventh equations and still, I get those stares.
It's like they aren't even trying...wait...
I swear if one more kid asks me how to find slope, I will have my nervous breakdown and be done with it. A nice long hospital stay might do me some good.
And heaven forbid I actually have them try to SOLVE the equation with some known value.
Here is the actual equation we were trying to solve for T:
0 kPa = (0.221 kPa/C) T + 90.85 kPa
I tried that first hour. After the alloted 43 seconds of wait time, no one had ventured a guess as to how to solve for temperature. I gave them a hint. Nothing. I moved the 90.85 kPa for them. Nothing.
I'm not sure what to do about this. I truly do not believe that every single one of them has forgotten every single math skill they have ever learned.