Make Pages Toolbar Bigger

I have a 24" iMac and when my mom opens up Pages she can see the icons for Inspector and Fonts and everything just fine but she can't see jack ***** on the toolbar below that - the one with the font, justification, etc. options. I can make the Fonts and Inspector icons even bigger but can't do anything with the toolbar below that. Why? And why can't I find anything at all in Settings or on the Apple site about doing that? My mom isn't even a senior - no clue how anyone over 60 could see anything.

I can change the resolution of the whole screen but that's a pretty clunky solution.

It's absolutely tiny. How do I make it bigger?