Mathemateg yn yr ysgol gynradd = Mathematics in the primary school /
Jones, Dylan V.
Dowker, Ann,1960-
Lloyd, Delyth.
University of Wales, Bangor.School of Education.
Bangor : Ysgol Addysg, Prifysgol Cymru, Bangor,
2005.
Welsh text and English text bound back to back and inverted.
Yn cynnwys llyfryddiaeth = Includes bibliography.
Mathematics
Education, Primary