I have done this with Grades 1-3 and they always love it!! All you have to do is choose times that are appropriate to your grade level (o'clocks, half past, quart past/to, 5 min increments, or any time to the exact minute) its as easy as that! You choose what time of day to call out, they write it down!
It is a really way to practice time at different times of their day (and they get to know what time things happen during their school days!) and you can continue to use it throughout the year to keep up with their time practice.
The Grade 1/2 split I just used this challenge with could NOT stop looking over and wondering when the next time i would shout "TIME CHECK!!!" would be. It was really funny seeing how pumped up they got it didn't even feel like learning to them at all.
I hope your group enjoys it!
Please leave some feedback about how it went :) I would love to hear other peoples experiences with the challenge! And also follow my store for updates!