This chapter outlines two distinct types of collaborative problem solving tasks: content-free and content-dependent, each allowing students to apply different strategies to solve problems collaboratively. Content-free tasks were developed to emphasise the enhancement of inductive and deductive thinking skills. Content-dependent tasks allow students to draw on knowledge gained through traditional learning areas or subjects within the curriculum. The collaborative problem solving framework emphasises communication for the purpose of information gathering, identification of available and required information, identification and analysis of patterns in the data, formulation of contingencies or rules, generalisation of rules, and test hypotheses. Characteristics of tasks which were identified as appropriate for eliciting collaborative problem solving processes are reported and illustrated by exemplar items. [Author abstract]