Automatic cutoffs: 20,000 Street View image tiles and 250 3D Flyover starts per month, plus daily and download limits. Warnings begin at 80%. Google imagery pauses if a limit is reached or the counter is unavailable.
These are app request attempts, not Google’s billing meter or a guaranteed dollar cap. Failed requests count. Usage before these safeguards were installed and usage from other apps are not included. New Google views may stop loading; lesson text and questions remain available.
Daily limits reset at midnight and monthly limits on the first day of the month, in America/Los_Angeles time. Counts survive server restarts and are shared by all users of this app in this environment.
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Choose or create a lesson
New to lesson building? Start with a Quick Prompt Lesson: choose an existing environment and add your own teaching prompt.
Save / Push saves the lesson and updates any open room. Students receive the update when “Deliver lessons live to students” is on. Preview edits alone are not broadcast.
Import curriculum
Advanced import: choose a curriculum JSON file (or a text file containing JSON) with a curriculum name and a lessons array. Each lesson needs an ID, title, unit, era, inquiry question, coordinates, and three or five checkpoints with answer text. Three-checkpoint imports are expanded to five stops; preview all five before teaching.
Imported lessons are saved in this browser only. The published catalog is not changed.
Move browser-only lessons to your account
Review custom lessons saved in this browser and import selected plans to your signed-in teacher account. Existing account lessons are never overwritten.
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