One issue we've been considering, which ties into your question of appropriate context, is how the box is distributed and ways that it's distribution can create an environment for success.
For example, we discussed how in China if the box was something sent home with students from school just the fact that it was considered homework would likely encourage parents to discuss these issues with their children.
In many situations, especially where it's most needed, I doubt there would be much ability to train facilitators so creating an opportunity for conversation and learning will need to be encouraged by it's method of arrival.
Are there systems in Afghanistan (or elsewhere) that your audience already trusts and is involved with that might encourage successful learning outcomes?
I think partnering with existing organizations for content would be best, because all of the information and resources we want to provide already exists, but access is limited and diffuse. I see the platform's main goal as being to facilitate access to trusted demographic specific information.
We had considered discussion boards. It will be important to provided both a sense of personalized support and a sense of community.