Level 1
Choose or identify an emergency light source.
2026–27 • Labs & wellness
Light in an Emergency: Bioluminescent Algae
Compare a flashlight with a living glow in a safe low-light demonstration.
Classroom lesson: Light in an Emergency: Bioluminescent AlgaeToday I can…
choose a dependable emergency light
Words to know
Words for this lesson
LIGHTLIVINGGLOWBRIGHTDIM
Follow along
What we will do
- 1
Choose the light
Choose normal lighting or a brief low-light view.
- 2
See a flashlight
Watch the adult point a flashlight at an object.
- 3
Look for glow
Watch the sealed algae, or look at a picture.
- 4
Compare
Choose bright, dim or not sure.
- 5
Choose for safety
Pick the flashlight for dependable emergency light.
Speech, sign, point, eye gaze, or AAC
Tell us what you need
FLASHLIGHTALGAEBRIGHTDIMLIGHTS ON
Teacher & para guideMaterials, learning objectives, access, and safety
Materials
- Sealed bioluminescent culture handled by an adult
- Working flashlight, gradual low-light viewing space and timer
- Bright/dim comparison cards, photographs and AAC choices
Safety first
Use no flames. Keep the culture sealed; never ingest it. Maintain safe pathways and supervision, change lighting gradually, and offer a fully lit observation alternative. Never shine a flashlight into eyes. Algae is a low-light science demonstration, not a dependable emergency light.
Follow each student's IEP, health, feeding, allergy, behavior, and mobility plans.
Individual learning objectives
Choose Level 1, 2 or 3 individually in either House group. A House is not an ability level. Watching, directing and communicating a boundary are valid participation.
Level 2
Compare flashlight and algae using BRIGHT/DIM or LIVING/ELECTRIC.
Level 3
Explain one similarity, difference and practical limitation of the glow.
Skill focus: Light-source comparison, observation, living systems, emergency-tool choice
30-minute teaching sequence
Introduce · 5 min
5 minutes: Preview all lighting changes and the LIGHTS ON signal. Show a flashlight first. Ask whether a living thing can make light.
I do · 10 min
10 minutes: Demonstrate a flashlight safely, then adult-handle the sealed culture according to its care instructions. Use only a supervised low-light setting.
We do · 10 min
10 minutes: Compare light sources with words, gaze or AAC. A faint or absent glow is a valid observation; do not promise brightness or agitate excessively. Use a prepared image if the culture does not glow.
Exit choice · 5 min
5 minutes: Choose a dependable emergency light and one observed comparison.
Science note: Bioluminescence is light produced by living organisms. The faint glow does not replace a flashlight or approved emergency lighting.
Curriculum connection: NGSS 1-PS4-2 and 4-PS4-2 connections.
Prepare for this learner
Select a level for each learner in either House group. Offer one-step cues, AAC, gaze, signs, speech or partner-assisted scanning. Use the learner’s established vision and access plan; high contrast is an option, not a universal CVI prescription. Respect refusal, watch-only and breaks.
Lower-staffing option: Keep normal room lighting and compare flashlight and algae photographs.
Record the response, access method, opportunities and support used. Record observed, declined or not assessed separately; a communicated refusal is not a failure of participation.
Word lesson plan
Editable classroom source plan. Source files may retain earlier titles. Use the individual level choices and safety guidance above when preparing the session.
Access supports
Communication Model five core words; accept speech, AAC, eye gaze, gestures, object choices, signs, and partner-assisted scanning.
Sensory Present one material at a time. Offer tools, gloves, observe-only, a scent-free choice, and a quiet break.
Motor Stabilize containers, pre-loosen parts, use adapted grips, and offer seated, standing, partner, or directing roles.
Learning Show the finished result, model first, use short visual steps, repeat, and record the least support needed.