Do you punish for bad grades? Do you pay for good grades? I do sometimes punish for bad grades, though not that often. If I do, It's for low grades and it depends on the kid. Most of my kids are very smart and are A and B students. My 5 yr old doesn't have letter grades yet, but he will in the up-coming school year. My 9 year old is an A, B, and C student though, so I generally let him off with a C. If he gets 1-2 Ds, then he's grounded for 3 days. 3-4, 6 days 5 or more, 8 days. My 11 year old son is an A student with the occasional B. Because he's so smart, my husband and I go rather "tough" on him and he has no objections, because he always tries and gets the grades he deserves. My 11 year old daughter is quite different in the fact that she gets straight As but she's faking her intelligence (ie pretending to be stupid or not as smart as she is). We go somewhat tough on her though we've stopped kind of and we're letting her go through her phase, though we're probably going to go back to going tough on her, if not going tougher. My oldest child age (about) 13 is a B/C student and As in a few certian classes (Math, music class, & phys ed). She does not get punished for Cs but she does for Ds. One day of grounding for each D. For Fs, she gets 2 days of grounding per F and every 3 results in 4 days. What do you do about grades?