Researchr is a web site for finding, collecting, sharing, and reviewing scientific publications, for researchers by researchers.
Sign up for an account to create a profile with publication list, tag and review your related work, and share bibliographies with your co-authors.
Paul Drijvers, Michiel Doorman, Paul A. Kirschner, Bert Hoogveld, Peter Boon. The Effect of Online Tasks for Algebra on Student Achievement in Grade 8. Technology, Knowledge and Learning, 19(1-2):1-18, 2014. [doi]
Abstract is missing.