My Own Books™: My Kindergarten Book All About Me, 25 Pack Partner Poems & Ladders Elapsed time and duration of round to the nearest Elapsed time and duration of time subjects are difficult for students to grasp and digital clocks only make it harder as students are failing to adequately learn to tell time using analog clocksThe Elapsed Time Ruler was created to address this difficulty and help teachers instruct students on elapsed time and duration of time questionsThe student version of the Elapsed Time Ruler is designed to interlock at each side marked "midnight" to create one continuous time lineStudent version is laminated on the front to allow the use of dry erase markers to mark the beginning and ending times if neededThink of this time tool as an analog clock unwound into a 24 hour format with A Precision snap catch vi : Supports requirements of Title I and other federally funded programs plus plenty of space for students to build vocabulary