This document discusses tools for teaching math and science. It describes science as the study of the natural world through observation and experimentation, and math as the study of numbers, quantities, and shapes. Since the world relies heavily on technology, higher knowledge in math and science is vital. The document recommends using podcasts, wikis, YouTube videos, and hands-on activities to engage students. It specifically highlights how YouTube videos can supplement classroom lessons by demonstrating how to solve problems. The conclusion states that math and science are important for 21st century education due to technology advances, and these tools can help educate students in various ways to reach different learners.