The document provides an outline for a lesson on the human circulatory system. It lists the 3 major components as the heart, blood vessels, and blood. It notes that the heart has 4 chambers and discusses the 2 main types of blood vessels. It also covers the main components of blood, including red and white blood cells. Students are asked to recall the 3 major components, number of heart chambers, and 2 main types of blood cells for an assessment.