Lesson Execution Report dinamic bisectors

Dušanka Colnar, Miro Colnar
dusanka.colnar@gmail.com, mirocolnar@gmail.com
OŠ Frana Kocbeka Gornji Grad, OŠ Frana Kocbeka Gornji Grad

Povzetek

Simetrala daljice je pojem, s katerim se učenci prvič srečajo v 7. razredu. Nekateri  ga takoj usvojijo in uporabijo v konkretnih nalogah, drugi pa imajo pri tem nemalo težav. Zato sva zasnovala blok uro matematike, v kateri so učenci pri usvajanju snovi o simetrali daljice uporabljali računalnik in program GeoGebra. Le-ta se je izkazal za motivirajoč in učinkovit pripomoček. Z njim sva popestrila pouk, dinamične in interaktivne geometrijske slike pa so vplivale na boljšo predstavljivost matematičnih vsebin ter na hitrejše razumevanje odnosov med geometrijskimi objekti.  Hkrati sva omogočila pouk, prilagojen vsakemu učencu glede na njegove specifične lastnosti.

Ključne besede: simetrala daljice, GeoGebra, dinamična geometrija, interaktivne geometrijske slike.

Abstract

Perpendicular bisector is a math term that students will encounter in 7th grade. Some master it without problems and can use it from the start in exercises; others have plenty of problems trying to understand it. We attempted to solve that problem with a double math lesson, where we used a computer and program GeoGebra. Our solution showed to be effective and positive. The lesson was more interesting and modern, with dynamic geometry enabling a better understanding of math terms and much faster understanding of relations between geometric objects. Using this method we were able to tailor the lesson to each student’s needs according to their own strengths. 
 
Key words: Perpendicular bisector, GeoGebra, dynamic geometry, interactive geometric images