UNDERSTAND CLOCKS IN NO TIME -- This set comes with 10 bendable, dry-erase time rulers. The rulers connect on both sides and unwind to create a 24-hour format with a.m. in red and p.m. in blue.DEMONSTRATE TIME -- This set of time rulers is great for demonstration. Help students visualize all 24 hours in a day as a continuous time line.MASTER TRICKY CONCEPTS -- Subjects like elapsed time and duration of time are difficult to grasp with just a digital clock. Help students visualize these concepts in a linear format.CREATE A TIME LOOP -- Connect these rulers on each side (noon and midnight) to create a continuous time loop.DRY-ERASE FRIENDLY -- The front side of each ruler is laminated. This allows students to mark the beginning and end of different times!COLOR-CODED LEARNING -- The color-coded segments on these rulers help children understand that elapsed time can begin in the p.m. and end in the a.m.