Explore or follow the new GeoInquiries project within the K12 Instruction group on GeoNet. See:
Direct link: http://esriurl.com/geonetGeoInquiries
GeoInquiries are short, standards-based inquiry activities for teaching map-based concepts found in commonly used textbooks.
Since 2014 GeoInquiries have been used to integrate ArcGIS Online technology to support subject matter content teaching. Lessons include learning objectives, technical “how-to’s”, textbook references, and formative whole-class assessment items – all packed into one page. These activities are technology agnostic and can be delivered in a classroom with as little as a tablet and a projector. Any teacher can use a GeoInquiry, regardless of their prior experience with digital mapping tools.