caa a22 4500 467997225 CHVBK 20180323112600.0 cr unu---uuuuu 170328e19900601xx s 000 0 eng 10.1007/BF00305091 doi (NATIONALLICENCE)springer-10.1007/BF00305091 Liebeck Pamela Dept. of Education, University of Keele, ST5 5BG, Keele, Staffordshire, U.K. aut Scores and foreits — An intuitive model for integer arithmetic [Elektronische Daten] [Pamela Liebeck] In introducing pupils to directed numbers, the number line is often used as an intuitive model. The C.S.M.S. project, however, recommended that for the teaching of integer subtraction the number line should be abandoned. Here an alternative model is set up and presented to children. Their response over three lessons is described and their learning is assessed in a post-test. Their response and performance is compared to that of a similar group of children learning through a number line model. The two models are compared from practical and theoretical viewpoints. Kluwer Academic Publishers, 1990 Educational Studies in Mathematics Kluwer Academic Publishers 21/3(1990-06-01), 221-239 0013-1954 21:3<221 1990 21 10649 https://doi.org/10.1007/BF00305091 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00305091 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Liebeck Pamela Dept. of Education, University of Keele, ST5 5BG, Keele, Staffordshire, U.K aut NATIONALLICENCE 773 0- Educational Studies in Mathematics Kluwer Academic Publishers 21/3(1990-06-01), 221-239 0013-1954 21:3<221 1990 21 10649 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer