Following the 1860 election to the presidency of Republican Abraham Lincoln, 11 southern states eventually seceded from the Federal Union in 1861. They sought to establish an independent Confederacy of states in which slavery would be protected.
Hollow rocks are a basic gymnastics exercise used to strengthen the core. Though basic, it is still a challenging exercise. Check out the video below to see how to perform them, as well as multiple ways to scale them to...
ANY ROCK IN YOUR BACKYARD. We present this exercise to two categories of audience: students (at grades 6-12) and teachers (K-12). Our one-hour presentations to students are intended to encourage them to begin to think in a new way. Our presentations to teachers are intended to encourage them to teach in a new way.