How many times have you heard your kids misuse much and many. If it's once, it's too many. It may be time to get them help.
Let Queen Shinobi teach them a thing or two. 
Everyone knows pigs are smart. And Shinobi is one of the smartest. She's been around for twenty-four years, so she's learned a thing or two. She even went to school one time. 
And if you think the children know much and many, how about then and than. I know they get that mixed up.
Get the book and watch them learn. Their education is worth a few bucks.