Tutorials have been added below to help you add content to your page. (Mainly your lesson plans)
1) At the top of the page, locate your page (under more- alphabetical).
2) Watch the video tutorial "How to Create a sub-page"
3) Watch the video "How to create a button" - You can use the button to make a basic link to your lesson plans.
4) Hit the PUBLISH button at the top of the page to publish the changes you have made to the site.
This is a general tutorial for Google Sites.
Use this video to help you add a sub-page under your name above.
This tutorial will show you how to add a button and link it to your lesson plans.
Helpful resources for Google sites.