Estimating and measuring time is an important skill to have! The 3Js practiced that today using pendulum timers they made. As a class we came up with several different tasks to complete. They estimated how many pendulum swings each would take, then actually measured them and ranked them from fastest to slowest. Finally student groups did screencasts to share how they did their time measurement projects and to explain why estimating and measuring time is so important using their own ideas. Check it out on our kid cam!