Several states have passed 'ag-gag' laws that make it illegal to gather undercover documentation and videos of cruelty to animals at factory farms and in other areas of industrial agriculture. But it is precisely this kind of reporting that exposes and can help stop abuse of animals.
Online you will find a wealth of websites to help your kids, or yourself, learn materials from the least to most complex. Think there's no substitution for face-to-face learning? One woman's goddaughter passed college level chemistry, and you could too.