I used to have a several small timers in my room (from the DRA/PALS kits) that I used for centers which I always
lost misplaced. Then I upgraded to the SMART Notebook timers which are also fabulous but SMART 11 often takes FOREVER to load on my computer and this is so quick and easy and it has been very effective especially with our technology centers. I love that it provides the time as well as a visual because let's be honest when we tell kids they have 30 minutes to work especially our littlest friends they don't have a clue how long or short that time really is.
The fuse gets closer to the bomb as time passes and then eventually it explodes!
The sand flows from the top to bottom in this good old fashioned hourglass timer.
The rocket is another popular timer choice!
Kids are fascinated with things "blowing up" so as you would guess the dynamite is another favorite.
I just found the swimmers and runners today but I am sure the kids will enjoy these ones as well!