04 · Area of Polygons [AV1] — printable QR sheet
4 stations, one per page. Print (portrait), post one at each station.
Talk-it-through problems take any real attempt for credit; timed problems gate hint 2 at 30 s
and Reveal at 60 s past that.
Printer tip: Ctrl/Cmd-P → portrait → “Background graphics” on if you want the flavor colors.
Station 1 of 4
4.1 — Rectangles & Parallelograms
Mild Medium Hot Spicy
Station code
fdffe97b
students can type this at the front page instead of scanning
https://geo-stations.mrritchey.com/fdffe97b/
Scan → work it on the whiteboard → type the answer → show the summary screen.
Station 2 of 4
4.2 — Triangles, Trapezoids & Kites
Mild Medium Hot Spicy
Station code
ef707c35
students can type this at the front page instead of scanning
https://geo-stations.mrritchey.com/ef707c35/
Scan → work it on the whiteboard → type the answer → show the summary screen.
Station 3 of 4
4.3 — Area of Regular Polygons
Mild Medium Hot Spicy
Station code
f172c36b
students can type this at the front page instead of scanning
https://geo-stations.mrritchey.com/f172c36b/
Scan → work it on the whiteboard → type the answer → show the summary screen.
Station 4 of 4
— Review (T4)
Mild Medium Hot Spicy
Station code
5a5b4c7b
students can type this at the front page instead of scanning
https://geo-stations.mrritchey.com/5a5b4c7b/
Scan → work it on the whiteboard → type the answer → show the summary screen.