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 .

My name is Talgat Bainazarov. I have been teaching mathematics in secondary school. At the moment I am a vice-principal at newly opened Nazarbayev Intellectual School in Karaganda.

I am the translator of GeoGebra UI into Kazakh (my native language) and the Chair person in the GeoGebra Institute of Astana

When did you first try GeoGebra?

I first tried GeoGebra in 2009 when I was a university student on a workshop for prospective teachers held by a public school. Since then GeoGebra has become a good friend of mine.

Year 2009 was just an introduction. I didn`t go deep into it. A great impact on my enthusiasm was made in 2011 by the first GeoGebra ambassador Guillermo P. Bautista Jr. I came across to his blog when I was searching for step-by-step tutorials. I learned a lot from his tutorials in his wonderful blog Mathematics and Multimedia.

He brought me an idea of establishing a local GeoGebra Institute (there are 3 in my country now). After having learned to use GeoGebra step by step, I started to produce videotutorials and presentations in Kazakh.

What do you hate in GeoGebra?

The only thing that I feel pity about is that 8 years had past for this wonderful software to reach me. I wish I had known and used in my study at school.

What do you love in GeoGebra?

I love people in the GeoGebra community. All of the members of team are so responsive, enthusiastic and helpful that newly involved people in the community are easily “infected” by their passion to spread dynamic tool for mathematics to everyone. I have students, who in some way have become teachers, in the GeoGebra Institute of Astana, because they are making video, presentations and translations. They have created a public page on a social network.  They are sharing their knowledge and ideas. The feeling of contribution in the education has been driving them ahead. I guess, the same can be told about all the students around the world who are involved in the GeoGebra community.

What are the GeoGebra related activities you participate?

• The first activity is the workshop for maths teachers that I led in my hometown Kostanay in 2011
• The next year AEO “Nazarbayev Intellectual schools” invited Zsolt Lavicza to Astana for the August conference and a two day workshop. I assisted him on the workshop
• In May, 2013 we hosted Zsolt Lavicza and Istvan Juhos for the workshop. This visit was very productive, because we managed to meet a lot of important people who became more interested in the GeoGebra. We are expecting good changes in the development of mathematics in Kazakhstan.

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.

I am Anthony C.M. Or from Hong Kong. I was a secondary mathematics teacher for many years and is now a curriculum development officer in the Education Bureau. My major duty is to develop some learning and teaching resources in Mathematics to cater for the learning needs of students at primary and junior secondary levels. I also conduct studies with focuses on how to improve learning and teaching of mathematics, and organize seminars and workshops for teachers.

When did you first try GeoGebra?

I first tried GeoGebra 3.0 in 2008 and found it a wonderful dynamic geometry software. Since then, I use GeoGebra a lot to develop learning and teaching materials.

What do you hate in GeoGebra?

I have nothing to hate in GeoGebra. I would love it more if its functions of text formatting can be further enhanced.

What do you love in GeoGebra?

I love its dual (Graphic and Algebraic) modes of representations and constructions. I love its powerful commands, scripting and the conditional showing of objects. I love the flexibility it provides such as the customizable toolbar and Java-based HTML output. I love its nice Graphical User Interface. I love GeoGebraTube. Finally, I love the freeness of GeoGebra, not only in terms of price but also in terms of the liberty to implement my ideas freely.

What are the GeoGebra related activities you participate?

I am a co-chair of GeoGebra Institute of Hong Kong. We organize GeoGebra workshops for teachers. We also develop websites to foster the use and sharing of GeoGebra materials suitable for Hong Kong curricular.

When did you first try GeoGebra?
Fall 2009. I loved dynamic geometry, but had very little use from my students other than what I asked, since their access was limited. An open source program was a dream come true.

What do you hate in GeoGebra?
Nothing! I miss recursion a little bit, and wish the custom tools were a little more flexible, but new features get added literally faster than I could wish for them.

What do you love in GeoGebra?
So many features to love. The heart of it is the strong connection between geometric and algebraic representations. As an application, the unbelievable ease to get a new user starting is amazing.

What are the GeoGebra related activities you participate?
I use GeoGebra with students, both as a super-calculator and geometric constructer and for created activities. I help train teachers to use the program, and support local and web users via email and Twitter (@mathhombre). I use it for my own mathematics solving, and just to play.

When did you first try GeoGebra?
About 9 years ago, I was looking around the internet seaching for Java applets for my lessons. I was working in that days with Winplot and Wingeom, but I wanted a software which works in the web environment. And so, while looking and surfing the web… I found Geogebra! It was love at first sight. I began with version 2.5, then 2.6a, 2.6b and the others.

What do you love in GeoGebra?
I love everything!
If I have to choose one, I will say that the slider objects and the exportation as a web page what the first thing I love about GeoGebra. Now, the scripting features are something I am crazy about.
Geogebra is great and I like all the capabilities it has.
The spirit of Free Software is something I like very much.

What are the GeoGebra related activities you participate?
I worked in my country for a project about geometry, for the first level in highschool. We are using GeoGebra.
I participated giving two conferences and one workshop about GeoGebra in an International Math Festival in my country. At end of July and beginning of August I am going to participate as a plenary speaker at the 3rd North American Conference in Mexico and at the Latin American Conference in Colombia.
When I return to Costa Rica, I will organize and participate at a videoconferences cycle, for Central America to encourage people to use GeoGebra.

Who are you, what are you doing?

I have been a secondary school mathematics teacher at Madeira High School in Cincinnati, Ohio, USA for the past 22 years. I have also been a Mathematics Instructor at the University of Cincinnati Blue Ash College in the Department of Mathematics, Physics, and Computer Science, as well as in the College of Arts and Science in the Mathematics Department for the past 10 years.

When did you first try GeoGebra?

I read an article by Markus on the Mathematical Association of America website in March of 2007. I have been using GeoGebra since that day. What was the “thing” that got me started? I was AMAZED how simple it was to do calculations with coordinates ( for example, x(A)+y(B) ). It was so difficult to do in other software

What do you hate in GeoGebra?

I am not sure there is anything I hate in GeoGebra. There are some “I wish…” I think from time to time, you need to be a little “tech savvy” when in the rare instance a java issue crops up. I wish this was not the case. I think this can scare folks from time to time.

What do you love in GeoGebra?

How can I pick just one thing? Dani Novak from Ithaca College told me that he didn’t care if others used GeoGebra. He used GeoGebra because it made him happy. That is why I love GeoGebra…It makes me happy!

What are the GeoGebra related activities you participate?

I am the co-Founder and co-Director of the GeoGebra Institute of Ohio (GIOHIO), which was the first Local GeoGebra Institute in North America. We have organized the Midwest Regional GeoGebra conference for the past 2 years (attracting over 350 total participants) and will be hosting the 4th annual North American Conference in 2013.

On behalf of the GIOHIO, I run free GeoGebra workshops for teachers during the summer, as well as run free monthly GeoGebra workshops during the school year. I also share GeoGebra at State and National teacher conferences.

Who are you, what are you doing?

I am Sanjay Gulati from India , a mechanical engineering graduate. I am a secondary mathematics teacher and a teacher trainer.

When did you first try GeoGebra?

I came to know about GeoGebra during March-April 2009.

What do you hate in GeoGebra?

Nothing

What do you love in GeoGebra?

Its visualisation capabilities and the way it reflects the dynamic nature of mathematics.

What are the GeoGebra related activities you participate?

• I frequently use GeoGebra in my classroom
• I have a blog, where I put all my mathematics related posts. Here I use GeoGebra for most of my posts.
• Please visit the this link to see some of the photographs of training session on GeoGebra conducted by me.

In the following series, we are going to introduce some special members of our community, the GeoGebra Ambassadors. Our Ambassadors are special members of the community.

Meet the first member of the GeoGebra Ambassador team:

Who are you, what are you doing?

I am Guillermo P. Bautista Jr. I work at the University of the Philippines National Institute for Science and Mathematics Education Development (UP NISMED). Our Institute is involved in teacher training, curriculum materials development, and educational research.

My work in our Institute focuses on the integration of computers in teaching mathematics. I use GeoGebra and other software to promote teaching through problem solving.

When did you first try GeoGebra?

I first tried GeoGebra in 2005. Since then, I have used it in numerous trainings, seminars, and workshops.

What do you hate in GeoGebra?

GeoGebra applets load slowly in some browsers. There are times that the applets do not load at all in old computers.

What do you love in GeoGebra?

In my blog post, 15 reasons why GeoGebra is successful, I have enumerated what I love about GeoGebra. Below are some of my reasons.

• It is FREE.
• It is open source and developed collaboratively by us: programmers, teachers, mathematicians, and users – not just a few people.
• It runs in multiple operating systems (Windows, Mac, Linux, etc.).
• It runs in different devices (computers, mobile phones, tablets).
• It highlights mathematical connections (algebra, geometry, calculus, statistics, etc.).

What are the GeoGebra related activities you participate?

• I have been involved in integrating GeoGebra in our Institute’s teacher trainings here in the Philippines since 2006.
• Our Institute has offered short-term courses for pre-service and in-service teachers. I served as one of the lecturers.
• I am one of the key persons who pushed through the establishment of the GeoGebra Institute of Metro Manila, the GeoGebra Institute here in our country.
• I have written more than 50 GeoGebra tutorials in my blog and have developed more than 200 applets.
• I have used and promoted GeoGebra in my presentations in conferences and workshops.