A time tested rhythm builder in the elementary classroom are popsicle sticks, and this activity, "Stick it to Rhythm!" will reinforce quarter and eighth note rhythms.
After a brief review on quarter and eighth note rhythms, students are allocated a set of popsicle sticks. After they make space for themselves on the floor, the teacher will play each example (8 in this pack!) and students have to dictate the rhythm using their popsicle sticks (don't worry, instructions on how to do eighth and quarter notes are embedded in the powerpoint)
After letting the students decipher the rhythm, the teacher advances the slide to find out the correct rhythm played in the example.
This works great for your youngest grades and all examples are MM 95bpm and under.
If you have any questions, please don't hesitate to leave it in the Q&A section or email me at firstname.lastname@example.org!