@inbook{8853364b3b534efeae468d6b9050cba2,
title = "Estimation",
keywords = "Wiskunde en Informatica (WIIN), Mathematics, Landbouwwetenschappen, Natuurwetenschappen, Wiskunde: algemeen",
author = "{van den Heuvel-Panhuizen}, M.H.A.M.",
year = "2001",
language = "Undefined/Unknown",
publisher = "Freudenthal Institute & SLO",
pages = "173--202",
editor = "{van den Heuvel}, M.H.A.M.",
booktitle = "Children Learn Mathematics. A learning-teaching trajectory with intermediate attainment targets for calculation with whole numbers in Primary School",
}