NOTE: you'll need to do this on each device so it'll take a little bit of time to set up initially, but the payoff will be HUGE when you don't have to figure out a way to type in this web address each time your kiddos need to access Wonders. :)
First, open up Safari and type in the connectED website. When you're at the screen you want your students to access, click the "share" button in the menu bar at the top of your screen.
Next, select "add to homescreen".
The website will now appear on the homescreen of your iPad, just like an app does. Students will only need to tap on the icon and the website will open for them.
This works for any website you use often in your classroom that you'd like your students to have easy access to!