english
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New Fibonacci-problem, product sum
James Tanton published a new problem about Fibonacci sequence on Thursday. I started to play with it with GeoGebra. After I published my article in Finnish some people asked about having it in English, so they could use it easier with their students. So here it is. Here I am working only with the traditional Continue reading
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Dr. Bea – the public examination
Me and my wife tried to travel to Iceland last summer. Because of the covid we had to postpone it to my Autumn holiday. It just happened that friend Bea’s doctor public examination was on that week at the University of Iceland, so of course we had to go to see it. Her dissertation title Continue reading
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Layers in GeoGebra
When you create objects that overlap in Graphics window, then the newest will be on top. In this article I will show how to change the order of the objects. Revathy, my Fulbright sister asked me to translate this article from Finnish. So I had to do it. Create two triangles and change the colors Continue reading
