To begin first watch Rosie's Walk song again with Miss Hickey. This time see if you can march to the steady beat. Then you can clap, stomp, pat whatever moves you choose in time with the steady beat.
https://www.loom.com/share/25dfb64214824d08a4808d23c4002bed
Then watch the next part of your lesson here
https://www.loom.com/share/b8b9e6b66f984773af17db1df83402b4
Now have a go playing some instruments (just things from around the house - pans, spoons, plastic bottles) to the steady beat.
https://www.loom.com/share/96d4b76c664440378258331a7a5bad8d