I’m in the middle of developing a new Project-Based Learning, STEM/ELA/History curriculum set in the theme of Time Travel. We had a successful Kickstarter campaign to raise enough money to build the entire set of 9 units:
If you still want to get the materials as soon as they come out, you can participate in the pre-orders here:
The first projects will start coming out in September of 2015. The entire curriculum is estimated to be done late Spring 2016.
(Pre-order prices are currently much lower than what retail will be. Most likely, due to the scope of this curriculum, it will end up costing more than ZBL when it is all done.