Sustainability Development in Mathematics Education—A Case Study of What Kind of Meanings Do Prospective Class Teachers Find for the Mathematical Symbol “23”?

by Jorma Joutsenlahti, Päivi Perkkilä
Published 2019-01-01

Adult Pre-Service Teachers Applying 21st Century Skills in the Practice

by Päivi Valli, Päivi Perkkilä, Raine Valli
Published 2014-05-01

The Potentials of Tangible Technologies for Learning Linear Equations

by Daranee Lehtonen, Lucas Machado, Jorma Joutsenlahti, Päivi Perkkilä
Published 2020-10-01