My name is Agustin Carrillo de Albornoz Torres and I am a Secondary School Mathematics Professor. At present I am working at the University of Cordoba (Spain), I am the director of GeoGebra Institute in Andalusia.

I am involved in working with various associations of professors and I am the chief secretary of the Spanish Federation of Teachers of Mathematics (FESPM) and the American Federation of Societies of Mathematical Education (FISEM).

When did you first try GeoGebra?

I started using GeoGebra in 2005. At that time I was coordinating a project on the integration of ICT in teaching in “Jándula Secondary School” which involved to provide computers for the whole school. Among the available programs to use in the classroom, it was GeoGebra. As I had some experience with dynamic geometry programs, I encouraged myself to find out what GeoGebra could offer.
In 2009 I published the book “GeoGebra. Much more than dynamic geometry ” whose aim was to offer some materials that could encourage and help teachers get started with GeoGebra.

How could we make GeoGebra even better?

It is not easy to answer this question because in each new version of GeoGebra we find significant improvements, as we have seen it with the addition of CAS or as it will happen with the 3D version.
In relation to the CAS version, I consider it still has to incorporate some commands and options to increase its power and in terms of the 3D version, I hope that we will soon enjoy the final version.
I also hope that versions for tablets and phones, which will make us have GeoGebra ready in our hands, will be available soon.

What do you love in GeoGebra?

Although all aspects of GeoGebra are remarkable, what I like most is its simplicity , which makes it so easy to use as it is such an intuitive program.
In addition, the ease offered by Geogebra to match levels or contents at any time they are working, make us consider it as an essential tool for all teachers who wish to incorporate ICT into their classroom.
Another noteworthy aspect is the community which has been created with millions of users willing to share materials and experiences, making it easy to use and ,above all, the power to solve any questions or problems quickly.
And finally, I also like the continuous evolution of GeoGebra, which forces as well as encourages us to discover the possibilities the new versions incorporate.

What are the GeoGebra related activities you participate?

From the GeoGebra Institute of Andalusia, I have taken part in the organization of meetings and conferences convened since its creation, which took place in Córdoba (2010 and 2013), Huelva (2011) and Granada(2012).
For many years I have participated in face-to-face and online teacher training courses in the use of ICT resources, including GeoGebra, promoting their use and encouraging teachers to their incorporation and use in the classroom.
This training is completed with various workshops and lectures at conferences and seminars held in Spain and Latin America.
Taking advantage of being the chief secretary of the FISEM ,I take part in all activities that the associations that belong to the federation call to promote and spread the use of GeoGebra.
Furthermore, in collaboration with the Organization of Ibero-American States (OEI) I participate in the development of materials and resources to use GeoGebra , which are being used in online training courses.
Also, in collaboration with the OEI and its American Institute of ICT and Education (IBERTIC) we have called “GeoGebra Day in Latin America” which will take place in Montevideo on September 14 as a previous activity to CIBEM .

When did you first try GeoGebra?
It was in 2005. Someone talked to me about a new open source project involving dynamic geometry, and I tried it at home that night. I felt it was interesting and promising, but it wasn’t enough yet for my high school students. My sense changed soon. I followed each version since that year, and nowadays I use it more and more in my classroom.

What do you hate in GeoGebra?
There is something I really hate: GeoGebra is always giving me a challenge. It makes me think about my lessons, It makes me doubt about what I do in the classroom, or even about what i’ve been doing for many years and I never asked myself about. I can’t give a lesson just as I did it in the previous course, because I get a new idea using GeoGebra and I can’t avoid it: I have to plan a new lesson. I hate GeoGebra because It leads me to a permanent didactical thinking.

What do you love in GeoGebra?
I love that it’s always surprising me. There is always something new. But the most I love is it’s so easy for my students, and they love it immediately. They start working on it, and in a few minutes they are learning mathematics, playing, exploring, and teaching me! It’s amazing.

What are the GeoGebra related activities you participate?
I am the chair of the GeoGebra Institute of Uruguay, and I lead the Laboratorio GeoGebra experience in Montevideo, offering workshops and courses. We’ve recently hosted the annual Latin American conference in our institute, and I’m trying to keep in touch with every colleagues in our region. GeoGebra is growing really fast, too much people want to know about GeoGebra, and I’m doing my best for show them why it delights me.