This is a CLIL unit to teach the geometry of the first course acording with the Balearic Islands math curricula.
This unit presents the triangle notable points using english as a L2. The aim is to learn how to find the triangle notable points drawing lines over the initial figure, as a goal it present the incenter, the circuncenter and the ortocenter, all of this with all vocabulary wich we need to explain how to draw each triable notable point.
The work on this unit will be:
• Activities of join concepts and definitions.
• Explain how to draw a notable point. (speaking and wriiting activities)
• Draw the notable points in diferent types of triangles using paper, pencil and rules, and using GeoGebra (TIC).
Schedule
This unit has 7 classes
1. Introduction to the notable points of triangle, and its definitions
This session will begin with a teacher explanation and work with the students arround the classroom. The techer will explain one notable point and using strings and tree students, the notable point explained will be found.
the classroom distribution will be as you can see on figure 1
Figure 1: classroom for the first session. in blue: students, in green: teacher.
2. Vocabulary activities
The basic vocabulary on triangle is in
http://www.mathopenref.com/triangle.html
http://www.mathopenref.com/constmedian.html
http://www.mathopenref.com/constperplinepoint.htmlThe teacher will present the web page
http://www.mathopenref.com/constorthocenter.
html http://www.mathopenref.com/printorthocenter.html
http://www.mathopenref.com/constcircumcenter.html
http://www.mathopenref.com/constincenter.html
in order the students will learn the vocabulary for the triangle notable points, and an other explanation how to draw that points
3. Drawing in paper activities.
On drawing sheets the students will draw three types of triangle and they will draw the notable points using three diferent colors (each one for each notable point).
4. Drawing using TIC activities
An activity, using Geogebra, is crated in order to the students draw the notable points using ICT. The activity is created in http://tube.geogebra.org/book/title/id/334927#.
The students enter in this page, they do the activity amb send a screenshot to the teacher using Moodle.
Geogebra Reseurces
A manual of geoGebra is in
• http://static.geogebra.org/help/geogebraquickstart_es.pdf
• http://wiki.geogebra.org/en/Manual
6. Class for finishing activits and solve questions
The students take time to finish all activities and consolidate the knowlage, they can use other resources like
• http://www.teachertube.com/video/ortocentre-16343
• http://www.teachertube.com/video/circumcentre-16341
• http://www.teachertube.com/video/baricentre-16342
7. Evaluate session
A classical Test will be presented to the students. They have 50 min to finish the test.
