Abstract
An assessment approach from Mathematics Recovery was used to document the number
knowledge of 20 first-graders and 20 second-graders in an Indonesian school. Sixteen firstgraders
were at the advanced-counting-by-ones stage and fourteen second-graders were
facile. As well, fifteen first-graders and eleven second-graders were at the level of an
intermediate concept of 10. Other findings were nine of the second-graders used the
erroneous ‘subtract smaller from larger bug’ and five first-graders used Jarimatika
(Chisanbop). Results are discussed in light of the literature.
Rumi Rumiati & Robert (Bob) Wright
Assessing the Number Knowledge of Children in the First and Second Grade of an Indonesian School