TL;DR: Use approved browser, expect filtered network, teacher pre-test URL whitelist, wired headphones via USB-C if allowed, respect Acceptable Use Policy.
URL whitelist request
IT adds redlightgreenlightgame.net educational games category—provide curriculum tie reflex PE rationale.
Guest network vs student login
Policies differ—know which SSID allows game sites lunch block only.
Chromebook keyboard feel
Shallow travel keys faster release sometimes advantage—practice on same hardware class cart.
Managed extension lockdown
Some keys remapped by district policy—verify arrow keys work day before lesson.
Shared cart hygiene
Wipe keyboards post class—standard lab procedure unrelated game but classroom context.
Projector demo bandwidth
Twenty simultaneous loads slow—stagger start times 30 seconds apart first lesson.
Offline fallback lesson
Physical playground red light if site blocked contingency plan printed in sub folder.
Screen time boundaries
Teacher timer visible—game reward not entire period unless objectives met.
Privacy
No account game safe COPPA friendly—mention in admin approval form.
Post-lesson debrief
Link reflex discussion to science nervous system unit—justify IT unblock future.
IT whitelist curriculum tie
Reflex PE and reaction time unit justification for domain approval.
Physical playground backup
Sub folder printed rules if site blocked contingency.
Post-lesson nervous system debrief
Science tie justifies future unblocks—administrative ally.
Shared cart keyboard shallow travel
May help or hurt stop speed—practice on same hardware class.
Staggered load first lesson
Twenty simultaneous loads slow Wi-Fi—30s stagger starts.
Whitelist test the day before the class
Ask the school network to load the game the day before, not in front of the class. A blocked page with thirty students watching is not a teaching moment. It is a delay. If the page loads on the teacher’s machine and not on a student laptop, the student network is the difference. Have that difference in writing before you promise the lesson. A promise you cannot keep becomes a free period with a resentful start.
USB-C headset that the lab will actually allow
Some labs allow a wired USB-C headset and forbid Bluetooth. Bring the allowed one. A headset you prefer and the lab rejects is a headset you do not have. Test it on the lab machine, not only on your laptop at home. Lab machines mute new devices until a permission dialog is accepted, and the dialog may be easy to miss. Accept it, hear the cue, then start. The permission dialog is part of the setup, like plugging in the cable.
Guest login that blocks the page the student login allows
A guest account and a student account can see different filters. If you tested on guest and the class uses student logins, you did not test the class. Load the page on the account the students will use. If that account blocks it, the lesson plan changes to the yard version or to a discussion of the rules without the screen. Do not spend the period clicking refresh on a filter. Refresh is not a whitelist.
Acceptable-use line read before the first Start
Read the one-line rule you need: the game is for the lesson, attempts stop when the bell rings, no downloads. Students can enjoy the doll inside that line. The line should be said before Start, when everyone is listening, not after someone is mid-run and the bell is competing with the cue. A bell during red is a perfect accidental catch. Plan to stop between attempts when the bell is close. Do not start a run you cannot finish before the room has to move.
Student-account screenshot saved the day before
Save a screenshot of the game actually running on the student account, with the date visible in the corner if the system shows one. A teacher’s laptop loading the page is not that screenshot. Bring the image even if you also bring the working machine. If the network changes overnight, you have proof it worked yesterday, which is useful with the filter admin and useless as a substitute for a plan B. The plan B is still the unplugged lesson. The screenshot is how you ask for the filter back without a vague claim.
Bell rule rehearsed without the doll on screen
Say the bell rule once with the projector off: attempts stop between rounds when the bell is close, no one starts a run in the last minute. Then turn the projector on. Rehearsing with the doll visible means nobody listens. The doll is more interesting than your sentence. Off, then sentence, then on. If you skip the off step, you will be explaining the bell while a student is already holding a key. That student will not hear you, and the catch will feel like your fault. It will be a timing fault. Prevent it with the order.
Plan B printed, not merely mentioned
The unplugged lesson, whatever you chose, should be a printed half page in your bag. A mentioned plan B is a sentence you cannot find when the filter fails. The half page can be the freeze rules and a one-minute drill. You may not need it. You need it in the bag anyway. Students can tell the difference between a teacher who prepared a second lesson and a teacher who is refreshing a blocked page. Be the first one, even if the page loads and the half page stays in the bag.
