Math teachers should grow algebra eyes and ears. To have algebra eyes and ears means to be always on the lookout for opportunities for students to engage in algebraic thinking which involves thinking in
How to teach the inverse function
In What is an inverse function? I proposed a way of teaching this concept starting with its graphical representations using GeoGebra applets. Al-Zboun Lilliana in our Linkedin group shares her idea
History of algebra as framework for teaching it?
In many history texts, algebra is considered to have three stages in its historical development: The rhetorical stage – the stage where are all statements and arguments are made in words and sentences
What is an inverse function?
In mathematics, the inverse function is a function that undoes another function. For example, given the function f(x) = 2x. If you input a into the function f, the output is 2a. The inverse function of f(x)