Mini worshop/ Mini lesson - "This is another name for small group instruction. When a teacher senses that some learners need additional help with a topic, understanding, or skill, the teacher might conduct a small group teaching session on that topic to help learners make necessary progress. The teacher may open the workshop to all students interested in attending, invite specific students to attend, or do both. A student who is particularly strong with a topic or skill might conduct a mini-workshop for peers, as long as the student is also effective in working with agemates and teaching what he or she knows. Mini-workshops cab be particularly helpful in guiding students through complex product assignments in which some requirements are not familiar to all learners. They are also useful for helping groups of students at all skill levels know how to move to the next level of profficiency." (Tomlinson & Strickland, p. 354).
C. Tomlinson & C. Strickland (2005) Differentiation in Practice: A Resource Guide for Differentiating Curriculum Grades 9-12. ASCD.