SaturdayThe Rosetta Stone. Your ten-year-old reads that the same decree is written three ways and asks why anyone would bother. That question is the whole case. Twenty minutes, one star, and a bookmark in the Notebook.
MondayPompeii. The source-comparison round asks which of two documents supports a claim about the date; the answer is “neither”, and the child is annoyed and then pleased. You learn the eruption date is itself debated in the app's framing, which is why it is called The Disputed Day.
WednesdayÖtzi. The exhibit labels do their job: a photo of the copper axe is “made at the time”, the picture of him walking is marked an illustration. Your child points this out to you, which is the point.
FridayThe Norse in Vinland. You open the case on the globe and drag the Time River back a thousand years. The Time Thread that connects it to Pompeii is about ways of knowing, not dates.


