Am confused either by making my lesson about working in peers or groups of 4 (# of learners is 16), the idea is to measure the effectiviness of my lesson by a 2 minute presentation from each group/Peer since we are limited by time, what would be more efficient groups or peers ( eliminating  the time frame and considering a homogenous group with 40%  of them being A SOLO 5 level learners) PS: SOLO 5 reference here is essential as we are supposed to be well prepared for this lesson) how can I make sure that rest of the learners achieve the learning outcome