To use Padlet, you'll simply create an account (the students DO NOT need to do this--another plus in the ease of use category). You can log in using Google to simplify the process. Then, to get started, you'll just choose "New Padlet" on the top right as you see in the image here. Then, you can use the toolbar on the right side of your screen that you'll use to navigate the Padlet (which you can see on the similes Padlet below). The toolbar gives you lots of control over the padlet that you've created. The gear at the bottom of that toolbar opens up another bar with many interesting features. You can change the background, change the name of the link, give a title and a description, and change the layout of the posts. (As a side note, I often change to the grid view (as shown below) or stream view instead of leaving the layout as freeform. The freeform layout looks neat but can sometimes cause students to have work hidden under the posts of other students.)
Overall, Padlet is a great, easy tech option to add to your toolkit. It does have an app if you'd like to use it, but it's also fine to just use it on your browser even with iPads. You can use it for discussions, research, collaboration, or as a space to share projects. Enjoy!