Education math TPT

Irrational Numbers – More than Infinite

Irrational numbers are numerous and yet, you can’t think of any of them. “But I can think of pi!” you might say to yourself. Well, ok. How does it go, then? Is it a fraction of some number we are already familiar with? No it isn’t. Today, we have many things that are absolutely too […]


Dangerous calculate in your head -tips

I’ve been exposed to some calculate big numbers in your head -tips in social media. At first, I thought that’s nice. It’s good mental practice to use one’s own brain instead of calculator. But then when I look closer, I see that some of them are poorly defined. Here is an example of squares of […]