United's series of STEM based curriculum kits accent the scientific method and independent inquiry featuring hands-on learning materials and exciting interactive digital content that can be accessed on a computer, tablet or your mobile device. Kits contain structured, guided, and open investigations, at introductory, intermediate, and advanced levels, to make inquiry based learning affordable and fun. Requires additional household materials for independent investigations. Our Learning to Measure Kit contains 5 classroom activities and 5 independent investigations for students to measure lengths and distances, volumes, mass, temperature, and time, and also investigates conservation of mass. The kit includes enough materials for 40 students working in groups of 4, as well as a DVD with PDF Teacher and Student Guides and other digital content.