Επίδοση Μαθητών Πρωτοβάθμιας και Δευτεροβάθμιας Εκπαίδευσης καθώς και Φοιτητών σε κατ’ Εκτίμηση Πολλαπλασιασμούς και Διαιρέσεις

Περίληψη

This study focuses on the investigation of the performance of primary and secondary school students as well as pre-service primary school teachers at computational estimation. A test was given to 5th, 6th, 10th and 11th grade students and to students of the Department of Primary Education of the University of Crete. The results of the present study provide evidence that there is a slow development of the computational estimation ability. Up to the 10th grade no significant difference is remarked. 11th grade students have significantly better performance than 10th grade students and preservice primary school teachers have significantly better performance than 11th grade students. Participants of all age groups have better performance at multiplications than divisions and better performance at operations between integrals than operations between decimals. Besides, the correlation between the subareas of computational estimation becomes stronger at each older age group which provides evidence that computational estimation structure becomes more solid at each older age group.