Thanks for taking a look at Creo Parametric. There are several getting started and help resources you can find for the trial.
You'll first see the getting started tutorials you can access directly in the trial. Once you've checked those out, you can find over 200 Creo tutorials available to you in the LearningExchange.
When you’re working in Creo Parametric, click the mortar board icon in the top right corner of your screen. That will open up the Learning Connector, a free learning application which will give you access to relevant topics directly from within Creo Parametric.
And finally, on the Training and Resources tab, take a look at the Creo Parametric Quick Reference card, to give you a quick overview of areas such as the user interface, menus, and command locator just to name a few.
Hope this helps.