In the last few semesters, with the implementation of iPads, I have focused on the use of students portfolios to measure understanding. The great thing about completing the portfolio using iPads is that I get to hear my students talk about what they learned. I get to hear them describe or discuss their learning. This tells me so much more than a multiple choice test or even a short answer test. Sometimes it is hard for students to write down their thoughts...they don't seem to have that trouble when they complete a voice recording. This learning is also easy to share with the use of Google Drive or Evernote.
I have made adjustments each semester and plan to make more this summer. Below is an example of how I am using portfolios in a personal finance class. We are currently using a folder in Google Drive for the students to house all of their work. This makes it easy for them to share the work with me and with anyone, anywhere, anytime.
The link to the requirements of the student portfolio can be found here. Below are screenshots and one example, next to Step 3: Budgeting, of student work. As I said, it is still a work in progress so all units do not have examples because we have not completed those units yet.