How does current education practice apply both 21st Century Learning Skills and Core Knowledge?

a. Modern educational practices apply the 21st Century Learning Skills in the classroom by focusing on student outcomes (a blending of specific skills, content knowledge, expertise and literacies) with innovative support systems to help students acquire the multi-dimensional abilities necessary for them to obtain in order for them to be successful in the 21st century. Core Knowledge is applied in classrooms by teachers who provide their students with basic knowledge. After students have mastered that knowledge, they are able to expand and build on top of that knowledge,
b. http://www.p21.org/index.php?option=com_content&task=view&id=254&Itemid=120
c. http://www.coreknowledge.org/what-we-do