To ask someone in Engpsh "What floor do you pve on?" you can say: "What floor is your home on?"
If you want to say it in Chinese, you can say: "你家住几楼?" (nǐ jiā zhù jǐ lóu?)
"亲子英语" means "parent-child Engpsh" in Chinese, but it's not related to the question you asked.