I use flashcards to practice rhythms in my classroom all the time! They are great for whole class instruction/practice, and they are wonderful to use in small groups for extra practice.
This set includes 23 different 4 beat rhythm patterns, and uses quarter notes, paired eighth notes, quarter rests, and half notes in stick notation and traditional notation. I have also included the same rhythms using tied quarter notes instead of half notes. I added as many combinations as I could think of, but if there is another pattern that you need, please let me know! I'll be glad to make it for you.
Simply print, cut in half, and laminate, and you'll have a great collection of flash cards (that you didn't even have to break out the markers to make)! I like to print mine on bright card stock, so they really stand out. I color code them by level as well, so that they're easy to grab in a hurry.
If you like this set, please continue to check back in the future! I plan to add different levels!