Introduction to Jazz music

Year 9 introduction to Jazz - 3 videos of Michael Buble, Jamie Cullum and Louis Armstrong Students learn 'added 6th&' chord, syncopation, walking bass, 3 different jazz rhythms and the 3 chords on the ukuleles. I planned to turn this into a group task but it&';s best to be led more by the teacher with stronger students playing 3 chords/the walking bass/improvising the melody on the glockenspiels/keyboards and the lower ability students to improvise rhythms on hand percussion/play the dotted rhythm on the hi-hat Any feedback would be great!