Click on the heading/title of the post you wish to comment on
Scroll down to the bottom of the post until you can see the words “Leave a Comment”
When you have finished your comment you will be asked for your name and email address/website (email and website is optional and won't be published). You can also click on "Anonymous" so you can comment without using an email address.
Click “submit comment”.
Your comment WILL NOT appear straight away. The class teacher checks all comments before they appear on the blog.