@article{0b8574d19fc240b4b9b2d86c56115c31,
title = "Sustainability Development in Mathematics Education--A Case Study of What Kind of Meanings Do Prospective Class Teachers Find for the Mathematical Symbol 2/3 {"}?{"}",
keywords = "content knowledge, fractions, languaging, multi-semiotic approach, pedagogical content knowledge, prospective class teacher, content knowledge, fractions, languaging, multi-semiotic approach, pedagogical content knowledge, prospective class teacher",
author = "Jorma Joutsenlahti and P{\"a}ivi Perkkil{\"a}",
year = "2019",
doi = "10.3390/su11020457",
language = "English",
volume = "11",
journal = "Sustainability (Switzerland)",
issn = "2071-1050",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
}