Roberto (nom d\u2019emprunt) a 16 ans, il est grand et fort. Il \u00e9tait peut-\u00eatre soldat en Angola, dans l\u2019arm\u00e9e r\u00e9guli\u00e8re ou dans une des bandes qui s\u00e9vissent l\u00e0-bas. Il est arriv\u00e9 en Suisse il y a 18 mois dans les conditions que l\u2019on devine. Demandeur d\u2019asile, il vit au foyer pour mineurs non accompagn\u00e9s de l\u2019EVAM. Comme la plupart de ses semblables, il sait pourquoi il est l\u00e0 et il travaille dur. Je l\u2019aide en math\u00e9matique. Math\u00e9matique\u00a0! Disons, les d\u00e9buts. L\u2019autre jour nous en \u00e9tions aux fractions.
\n1\/2 = 0.5\u00a0; \u00e7a marche\u00a0!
\n1\/5\u00a0? \u00c7a ne marche pas malgr\u00e9 de s\u00e9rieux essais.
\nOn essaie autre chose: 1×5\u00a0?
\nRoberto se concentre et donne p\u00e9niblement sa r\u00e9ponse\u00a0: 5.
\nBravo\u00a0! Comment as-tu fait\u00a0?
\n1 fois 2=2\u00a0; fois 2=4\u00a0; fois 1=5\u00a0!!!<\/p>\n
Fran\u00e7ois Conne \u00e9tait, jusqu’il y a peu, enseignant et chercheur en p\u00e9dagogie des maths\u00a0\u00e0 l\u2019UNIGe . Il a \u00a0trouv\u00e9 la d\u00e9marche de Roberto int\u00e9ressante et m\u2019a offert un g\u00e9n\u00e9reux commentaire.<\/p>\n","protected":false},"excerpt":{"rendered":"
Roberto (nom d\u2019emprunt) a 16 ans, il est grand et fort. Il \u00e9tait peut-\u00eatre soldat en Angola, dans l\u2019arm\u00e9e r\u00e9guli\u00e8re ou dans une des bandes qui s\u00e9vissent l\u00e0-bas. Il est arriv\u00e9 en Suisse il y a 18 mois dans les conditions que l\u2019on devine. Demandeur d\u2019asile, il vit au foyer pour mineurs non accompagn\u00e9s de […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1],"tags":[38,39,45,31,30,37,28,36,40],"class_list":["post-100","post","type-post","status-publish","format-standard","hentry","category-article","tag-acquis","tag-blank-slate","tag-dahene","tag-didactique","tag-epistemologie","tag-inne","tag-mathematique","tag-piaget","tag-pinker"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.dubochet.ch\/jacques\/index.php?rest_route=\/wp\/v2\/posts\/100","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dubochet.ch\/jacques\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dubochet.ch\/jacques\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dubochet.ch\/jacques\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dubochet.ch\/jacques\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=100"}],"version-history":[{"count":0,"href":"https:\/\/www.dubochet.ch\/jacques\/index.php?rest_route=\/wp\/v2\/posts\/100\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.dubochet.ch\/jacques\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=100"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dubochet.ch\/jacques\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=100"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dubochet.ch\/jacques\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=100"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}