Motive8 Headphone W volume Control Mid sized Multimedia correction tape Elapsed time and duration of RO54215 29370 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 216 category cards (432 categories) automatic and fast sanitizer for headphones and small electronics Motiv8™ are lightweight