The role of strategy keys in enhancing heuristics and self-regulation in mathematical problem-solving: A qualitative, explorative, and typebuilding study with primary school students Herold-Blasius, Raja ddc:510 2025 info:eu-repo/semantics/article doc-type:article text http://purl.org/coar/resource_type/c_6501 https://ris.uni-paderborn.de/record/65882 https://ris.uni-paderborn.de/download/65882/65883 Herold-Blasius R. The role of strategy keys in enhancing heuristics and self-regulation in mathematical problem-solving: A qualitative, explorative, and typebuilding study with primary school students. <i>Investigations in Mathematics Learning</i>. 2025;17(4):289-308. eng info:eu-repo/semantics/openAccess