b) Students have the opportunity to use their prior knowledge. 

c) Useful language is taught in a purposeful context. Language is used naturally and purposefully.  

d) CBI increases student interest and motivation because it is challenging. 

e) Due to the variability of topics and activities, students exercise choices and preferences. 

f) Students are exposed to a huge amount of language. Language may be learned incidentally or not. Language learning activities are meaningful. 

g) CBI supports different learning approaches.