TY - JOUR T1 - Od tvaru k číslu a algebre v školskej matematike A1 - Brincková, Jaroslava JA - Obzory matematiky, fyziky a informatiky Y1 - 2010 VL - 39 IS - 3 SP - 1 EP - 18 SN - 1335-4981 N2 - The article is dealing with possibility of a teacher to use inter and intra discipline relations during creation of applied problems and mathematical projects for 10–16 years old pupils. It shows connection of knowledge about natural numbers with modelling by affinitive geometrical shapes (squares, equilateral triangles and semicircle) and puzzle Tangram, too. It leads pupil to learn triangle inequality, Pythagoras’ theorem and affinity of plane shapes by nonstandard way. ER -