Browse and download FREE, standards-aligned activities designed for the complete line of TI Graphing Calculators. Building Concepts in Mathematics Explore a series of lessons that covers essential, foundational mathematics concepts, like fractions and ratios. Principles to Actions Enhance your curriculum with TI-Nspire™ activities developed in conjunction with the National Council of Teachers of Mathematics to align with Mathematics Teaching Practices. Featured TEKS aligned Activities Support for Texas Math Teachers - free activities for middle grades and high school. Featured CCSS aligned Activities Free activities for middle grades and high school. Search Activities Search all math and science activities by technology, subject and other parameters. Publisher Connection Search leading educational publishers for course materials that integrate and support TI technology. STEM behind Hollywood Involve your students in STEM concepts the entertainment industry uses to bring its most popular genres to the screen. STEM behind Health Provide your students with interactive, hands-on STEM activities based on the math and science of healing, hope and well-being.