JC1B: Permutation and Combination Lesson 2-Grouping, slotting and dividing by Gary Ang | Nov 19, 2015 | 16JC2B, Board-casts | 0 comments[vimeography id="315"] In this lesson, we discussed several permutation strategies such as grouping, slotting and dividing.Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment *Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Δ