If it lets u on google classroom click the 9 dots at the top and click on docs or slides as long as u can add a link on it
Type in the link https://sites.google.com/view/petezah-2 and click on it
U can close this by resetting the resources in the first tab with the home icon
Keep in mind class tools only lets you on links made by google (that’s why the google site works) so you can also access stuff like google.com and Gemini or any other link