In between learning how to read and perform simple addition, some Missouri first-graders may soon also be taught gun safety, the Huffington Post reports. On Friday, Missouri Gov. Jay Nixon signed into law a bill that includes a provision encouraging Missouri schools to teach a National Rifle Association-sponsored, gun-safety class [1] to some of the state’s littlest learners. The legislation, which was first proposed a day before the Sandy Hook massacre [2] in December 2012, gives schools the freedom to determine whether or not they would like to offer the course, according to Fox News. Schools that offer the program are eligible to apply for additional state funding…