How to connect pages in ionic app?

Hey, I am learning Ionic3 right now.
I was read some lessons about ionic, and I know it use router to connect the page what you need and jump one to the other.
so now I am reading the lessons of yours (is it ionic2 right?),and seriously,I am not understand how it works.It’s a stuck , ok , something push in or pop out.but still not understand clearly.
please someone can explain it ? like 1 step 2 step something like this?thank you. I am just try to learn it.

I already wrote an answer for that.

Click me :smile_cat:

EDIT: Also check this link I wrote the most important steps to begin with.