Lesson 4: Reflexes & Sensory Input
Duration of Days: 4
Lesson Objective
Design investigation testing reaction time and sensory thresholds.
Why reflexes happen before awareness
How body maintains balance
Reflex arc, sensory neuron, interneuron, motor neuron, thermoreceptor
HS-LS1-3
Analyzing experimental data
Conduct reaction time lab
Analyze feedback loops
Purpose is observing nervous system response
DOK 4
Texting while driving
Reflexes go to brain first
Choice of test methods
Structured data tables
https://docs.google.com/document/d/1siFIsOAs45CxuUlyJt9dNRdT70eTva14fJMeE1qXHPk/edit?tab=t.0
Formal reaction time lab report
Skills Assessed
- Experimental design
- Data analysis
- Comparing variables
- Scientific writing
- Graphing and interpretation
Content Assessed
- Reflex arc
- Sensory and motor neurons
- Homeostasis
- Reaction time
- Sensory input processing
- Spinal cord reflexes