Memphis, TNI'm a middle-aged grandma who's decided, after about 30 years, to go back to college. I'm in my fifth semester at Kaplan University and am carrying a GPA of... I'm a middle-aged grandma who's decided, after about 30 years, to go back to college. I'm in my fifth semester at Kaplan University and am carrying a GPA of 3.92 (yep, I'm bragging -- this is tough!). I'm the mother of a grown son and daughter, and my husband and I are also now raising a 4-year-old...