characteristics:

open and challenging tasks

encourage learners to what they already know

encourage learners to evaluate what they have said and done

difficult to make comparisons with group groups

difficult to ascertain the ability to transer to other contexts; thinking skills are not especially tested or evaluated in normal assessment practices

good attitudes and enthusiasm for innovation are positive outcomes

the same program may not necessarily be useful or successful in another context

creative thinking research needs to consider the social,  historical, cultural and educational features of contexts

a way of learning

a dialogue with others and an internal dialogue

English can be used to improver learners' English competence