{"bf_titre":"Croix du b\u00fbcheron","bf_auteur":"CRIE de Mouscron","bf_intro":,"bf_objectifs":"Mesurer la taille d'un arbre","checkboxListeType":"1","checkboxListeJour":"4","bf_materiel":"2 b\u00e2tons de m\u00eame longeur","bf_ingredient":,"bf_deroulement":"Choisir l'arbre dont on veut estimer la hauteur.\r\nPrendre deux b\u00e2tons de m\u00eame longueur (entre 20 et 30 cm par facilit\u00e9).\r\nPlacer les deux b\u00e2tons et se d\u00e9placer comme indiqu\u00e9 sur le document joint.\r\nA bonne distance, compter le nombre de pas pour se rendre au pied l'arbre.\r\nCe nombre de pas correspond \u00e0 la hauteur de l'arbre (1 pas = 1m)\r\nBien entendu, il ne s'agit que d'une estimation!","bf_preparation":,"bf_plus":,"bf_video":,"fichierfichier":"LaCroixDuBucheron_fichier_la-croix-du-bucheron.jpg","data-imagebf_image1":,"filename-imagebf_image1":,"data-imagebf_image2":,"filename-imagebf_image2":,"data-imagebf_image3":,"filename-imagebf_image3":,"data-imagebf_image4":,"filename-imagebf_image4":,"data-imagebf_image5":,"filename-imagebf_image5":,"data-imagebf_image6":,"filename-imagebf_image6":,"data-imagebf_image7":,"filename-imagebf_image7":,"data-imagebf_image8":,"filename-imagebf_image8":,"data-imagebf_image9":,"filename-imagebf_image9":,"data-imagebf_image10":,"filename-imagebf_image10":,"data-imagebf_image11":,"filename-imagebf_image11":,"data-imagebf_image12":,"filename-imagebf_image12":,"id_typeannonce":"1","id_fiche":"LaCroixDuBucheron","createur":"Anonyme","categorie_fiche":,"date_creation_fiche":"2017-11-23 14:44:35","statut_fiche":"1","imagebf_image":"LaCroixDuBucheron_oaegc.jpeg","date_maj_fiche":"2017-12-15 11:43:23"}