Grades K–2 · 8 connected explanations
Networks, Exchange & Time
Follow an exchange, a letter and a plan. Then connect the ways people represent places and time with a changing shadow.
Societies
How does an agreed barter exchange change who has which goods?
An agreed exchange changes who has each object.
Societies
How does money help people trade with different people?
Shared money can connect exchanges between different people.
Societies
How does a letter find its route through a postal system?
A letter reaches someone through a connected route of handoffs.
Societies
How do map symbols help us find places?
Map symbols help people represent places along a route.
Societies
How can a picture calendar help a group share a plan?
A calendar represents when a shared plan will happen.
Mathematics
How do clock hands show hours and minutes?
A clock uses moving hands to represent hours and minutes.
History & Evidence
What does a photograph keep inside its frame?
A photograph keeps a selected view of one moment.
Earth & Space
How does a shadow change during a day?
A changing shadow connects the passing day with something observable outdoors.