Learning to tell time is easier with a hands-on math manipulative clock. Simple to follow instructions for making a clock out of a CD or DVD gives kids a hands-on way to learn to tell time. Great for common core math.
My dad taught me how to tell time on a paper plate and he still has them packed away 33 years later;) Use paper plates to make a clock for teaching time... I remember doing this in the second grade way back in the early seventies!! (Ours weren't cool enough to have two layers, though!!)