Skip to main content
Additional navigation
Account
Search
0
Māori
English
Main navigation
Rangahau
Research
Our Research
Te Pae Tawhiti
Te Wāhanga
Commissioned research
Evaluation services
Projects
Search publications
Our researchers
He pukapuka, he hautaka
Books and journals
Books and journals
All books
All journals
Forthcoming books
Set: Research information for teachers
Subscribe to journals
He aromatawai, he uiuinga
Assessments and surveys
Buy paper tests
NZCER Assist
Progressive Achievement Tests (PATs)
School surveys
School tests
Te Urungi
Kaitohu mātauranga
Education advisors
Ngā whakamātautau hinengaro
Psychological tests
Psychological Test Services
Educational tests
Psychological tests
Ngā rongokōrero hou
News and Blogs
Mō NZCER
About NZCER
Contact us
Fellowships and Awards
Corporate documents
Careers
NZCER Board
NZCER Press
Library
Our team
About NZCER
User account menu
Log in
Nerida Ellerton
Publications
Fractions: A weeping sore in mathematics education
Journal article
1994