Some people ask me what creative tools do I use during the Theory of knowledge lessons, so here are some ideas:

Harvard Project Zero – visible thinking – under thinking routines you will find a routine for all kinds of thinking: core, understanding, fairness, truth and creativity

Think from the middle website – in the teacher toolbox you are going to find thinking routines, discourse strategies, formative assessment strategies, comprehension strategies and metacognitive strategies

Discussion protocols 
Small group discussions
Class discussion strategies