Unit 5 — Systems of Equations — printable QR sheet
5 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 5
5.01 — Solve by Graphing
Mild Medium Hot Spicy
Station code
ebffb419
students can type this at the front page instead of scanning
https://experiments.mrritchey.com/ebffb419/
Scan → work it on the whiteboard → type the answer → show the summary screen.
Station 2 of 5
5.02 — Solve using Substitution
Mild Medium Hot Spicy
Station code
67185a03
students can type this at the front page instead of scanning
https://experiments.mrritchey.com/67185a03/
Scan → work it on the whiteboard → type the answer → show the summary screen.
Station 3 of 5
5.03 — Solve using Elimination
Mild Medium Hot Spicy
Station code
e19399cc
students can type this at the front page instead of scanning
https://experiments.mrritchey.com/e19399cc/
Scan → work it on the whiteboard → type the answer → show the summary screen.
Station 4 of 5
5.04 — Linear Inequalities
Mild Medium Hot Spicy
Station code
e9a39a2a
students can type this at the front page instead of scanning
https://experiments.mrritchey.com/e9a39a2a/
Scan → work it on the whiteboard → type the answer → show the summary screen.
Station 5 of 5
5.05 — Choosing Best Method + Review
Mild Medium Hot Spicy
Station code
c6e23b99
students can type this at the front page instead of scanning
https://experiments.mrritchey.com/c6e23b99/
Scan → work it on the whiteboard → type the answer → show the summary screen.