I'm having trouble following the MVC standard.

I'm new to CodeIgniter and I may have made a silly mistake. I have a view called "menu.php" with several options, such as "Query" and "Registration". When I click on "Query", it should call the view "queryProducts.php", but it's not working. How can I call it from the menu? It worked fine without the framework, but I'm having omegle voojio shagle trouble following the MVC standard.