03 · Quadrilaterals [CP1] — printable QR sheet
9 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 9
3.1 — Polygon Classification
Mild Medium Hot Spicy
Station code
ea1b23ae
students can type this at the front page instead of scanning
https://geo-stations.mrritchey.com/ea1b23ae/
Scan → work it on the whiteboard → type the answer → show the summary screen.
Station 2 of 9
3.2 — Interior Angles of Polygons
Mild Medium Hot Spicy
Station code
d7b74154
students can type this at the front page instead of scanning
https://geo-stations.mrritchey.com/d7b74154/
Scan → work it on the whiteboard → type the answer → show the summary screen.
Station 3 of 9
3.2.5 — Exterior Angle Sum
Mild Medium Hot Spicy
Station code
b5e15155
students can type this at the front page instead of scanning
https://geo-stations.mrritchey.com/b5e15155/
Scan → work it on the whiteboard → type the answer → show the summary screen.
Station 4 of 9
3.3 — Classifying Triangles & Quadrilaterals
Mild Medium Hot Spicy
Station code
fe4254f5
students can type this at the front page instead of scanning
https://geo-stations.mrritchey.com/fe4254f5/
Scan → work it on the whiteboard → type the answer → show the summary screen.
Station 5 of 9
3.4 — Parallelogram Properties
Mild Medium Hot Spicy
Station code
0fc5608f
students can type this at the front page instead of scanning
https://geo-stations.mrritchey.com/0fc5608f/
Scan → work it on the whiteboard → type the answer → show the summary screen.
Station 6 of 9
3.5 — Rhombus, Rectangle & Square Properties
Mild Medium Hot Spicy
Station code
6c09b374
students can type this at the front page instead of scanning
https://geo-stations.mrritchey.com/6c09b374/
Scan → work it on the whiteboard → type the answer → show the summary screen.
Station 7 of 9
3.6 — Kite & Trapezoid Properties
Mild Medium Hot Spicy
Station code
784384a7
students can type this at the front page instead of scanning
https://geo-stations.mrritchey.com/784384a7/
Scan → work it on the whiteboard → type the answer → show the summary screen.
Station 8 of 9
3.7 — Midsegment Properties
Mild Medium Hot Spicy
Station code
d40d2f9e
students can type this at the front page instead of scanning
https://geo-stations.mrritchey.com/d40d2f9e/
Scan → work it on the whiteboard → type the answer → show the summary screen.
Station 9 of 9
— Review (T3)
Mild Medium Hot Spicy
Station code
cf7cb4a3
students can type this at the front page instead of scanning
https://geo-stations.mrritchey.com/cf7cb4a3/
Scan → work it on the whiteboard → type the answer → show the summary screen.