2. A peer review/grading system for use with Scratch (SPRAT) Dr
A peer review/grading system for use with Scratch (SPRAT) Dr. Ben Schafer

3. Who should be here??
To get benefit from this presentation you should probably:
Teach Scratch
Want students to complete/submit assigned programs in Scratch
Be comfortable running a Python script (or be willing to learn)
Be comfortable modifying a few variable values in Python (or be willing to ask a colleague who is)

4. Background and Motivation
I teach with Scratch
A LOT!!
I want students to submit projects
Partially to see if they are understanding the material
In other words, for evaluation
I want students to see other student's work
Some great learning takes place when you can look beyond how YOU saw the problem

5. What I wanted
Collections of similar programs

6. Scratch Studios You can easily collect similar work onto a single page
Make one studio per homework assignment
Great for sharing work and getting students to look at alternatives

7. What I wanted Collections of similar programs
"Peer Review" by the students

8. Sharing and Commenting
Scratch already has built in sharing and commenting

9. What I wanted Collections of similar programs
"Peer Review" by the students
Automatic "grading"

10. Scratch Teacher Accounts
Pros
Credential creation/management
Additional Studio Management tools
Cons
Mostly used to provide management for the student accounts
No grade book features
[Wasn't available when I got started]

11. What I wanted Collections of similar programs
"Peer Review" by the students
Automatic "grading"
It's good to be a programmer

12. Introducing SPRAT
The Scratch Peer Review and Assessment Tool

13. What I did
I discovered that Scratch has a largely unadvertised API to allow access to publicly shared information about users, their programs, and the studios they create and post.

14. What I did
I wrote a Python script that uses this API extract some key information from the Scratch website to build a peer review/grading system to fit my needs.

22. Scratch Peer Review and Assessment Tool