Both direct and student-oriented instruction methods can be used (Box 4.11). Direct instruction is built around problems with clear, correct answers that can be learned quickly. Student-centred instruction is associated with the teacher facilitating students' own inquiry by allowing them time to find solutions to problems on their own before the teacher demonstrates how a problem is solved.16 While there is no consensus in the literature on which approach is better, an over-reliance on either approach is not recommended (OECD, 2008b, Rowe, 2007). As much as possible, classroom activities related to the curriculum should develop student knowledge of real-world problems (Dumont, Istance and Benavides, 2010, Faubert, 2012, OECD, 2008a).