Here's a concept....... go to school and get good grades so you can get into a good college and then get a good JOB!
What a load of crap!!!!
Getting good grades is like making money in real life man.
I've taught all my kids "how" to get good grades.
As a self taught straight A student (lived on my own through high school)
Getting good grades is all about posture/positioning
In college I could put my name on any students paper and they would receive an A for the paper; we tested the concept many times. YOUR grade depends on what the instructor thinks of you, with the exception of mathematics type courses. It's a con job man, jeesh.
The fact that her grades have fallen tells me she has lost the respect of her teachers; call them and ask them.
She's smart, she'll figure it out.
Your daughter is beautiful, so you should be teaching her the difference between "Winners" and "Losers", as the guy she marries will most likely have the biggest effect on her future happiness. Of course, to teach your daughter about being a "Winner" you'd need to be one yourself? I'm sure you are, as you seem to cherish your relationship with your wife and family very much.
As a lifetime "A" student, I've always hated the saying "C students hire A students to work for them"; but there is alot of truth in that saying.
I'd be much more worried about my kids learning a true value system about right and wrong, ethics and morals than grades any day of the week. Grades Smrades.
