With an email subscription your readers will get an email telling them each time you update your blog.
I think it would be a great way to encourage contributions from parents/whanau as they will quickly know when you update.
There are two ways of doing it- the old way which is really complicated or the easy way. You decide which you would prefer to do. The easy way is first and the hard way is second as I would suggest that most people will chose the easy way.
Go to your OVERVIEW. Click on LAYOUT.
Click on ADD A GADGET.
A list comes up. Scroll down to until you find 'FOLLOW BY EMAIL'.
Click on the blue plus sign.
Sweet! That's all you need to do.