@inproceedings{09de2b8fa1224f86bcb3ad0a001a86a9,
title = "The Relationship Between Number Names and Number Concepts",
keywords = "base-10 value system, new number names from 11-99, grade K-2",
author = "Ejersbo, {Lisser Rye} and Morten Misfeldt",
year = "2015",
language = "English",
volume = "1",
pages = "84--91",
editor = "Xuhua Sun and Berinderjeet Kaur and Jarmila Novotn{\'a}",
booktitle = "Primary mathematics study on whole numbers : ICMI Study 23 conference proceedings",
publisher = "University of Macao",
edition = "1",
}