Inquiry-based instruction is an important teaching strategy in science education that can be implemented to achieve different learning goals (e.g. the learning of science content or of inquiry skills and strategies). Inquiry-based instruction is often combined with guidance attempting to assist students to effectively engage in inquiry activities and, through this engagement, reach the intended goals. In recent research, the type and amount of guidance needed to foster student’s learninghas received considerable attention. One challenge in interpreting the results of this line of research is the manifold meanings of the term ‘guidance’ and its implementation in inquiry-based instruction. Moreover, the effectiveness of a particular type and amount of guidance may also depend on the learning goal that is to be achieved. In this paper, we draw on existing research and theoretical considerations in attempting to disentangle three major dimensions in which the implementation of guidance may vary: (a) the degree of autonomy, (b) the degree of conceptual information, and (c) the cognitive domain of guidance. We discuss how these dimensions can be used to capture and systemise fidings of existing studies as well as to infer desiderata for further research on the role of guidance in inquiry-based instruction.

In modern science- and technology-based societies, competencies that allow citizens to reason scientifically play a key role for science- and technology-based careers as well as for democratic co-determination (e

Engaging learners in practicing the retrieval of learned information fosters the consolidation of learners’ mental representations and hence long-term retention. Retrieval practice research has enriched the instructional design literature by providing a wealth of evidence for these benefits of retrieval-based learning and thus emphasizing the value of means to consolidate knowledge. The present article makes the case that a fruitful next step could be to focus on the interplay between retrieval practice and generative activities. Rather than consolidating mental representations, generative activities should have as their main function the construction of coherent mental representations. Hence, from a theoretical perspective, generative activities and retrieval practice should functionally complement each other; hence, combinations of both activities might be particularly suitable to promote lasting learning. Given the challenge to beneficially combine these activities, we discuss open questions that could substantially advance both the retrieval practice and the generative learning field.

Creating lasting knowledge is an important goal of education. But how much do students retain what they have learned in school beyond the next class assignment? Is school instruction suitable for creating lasting knowledge and skills? And what can teachers do to foster the learning of lasting knowledge? We present a selective overview of research on these questions. The two theoretical strands that deal with lasting learning are meaningful learning and desirable difficulties in learning. We propose combining ideas from these two approaches to develop a comprehensive theoretical account of lasting learning and sketch questions that research should clarify to enable such a theory.