U5 B1 1HVTTO

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 1

B1 Perceiving your environment

• Put your things on your desk
  

       Book, notebook, pencil case

• Lesson goals:

1. You can describe how the senses work.
   
2. You are able to list the senses along with their locations and stimuli

What sensory organs do you know?

What senses do you know?

Senses

• Sight
• Sense of hearing
• Sense of balance
• Sense of smell
• Sense of taste
• Sense of heat/cold
• Sense of touch/pressure 

Sensory organs

• Eyes
• Ears
• Tongue
• Nose
• Skin

Stimulus:

• light
• sound
• taste
• scents/odours
• heat, cold, pressure, contact, pain

Stimuli and impulses

• Sensory organ takes in stimuli
• 1=stimulus 1<stimuli = Influence from the environment
• Sensory organ sends impulses to the brain
• Impulse = electric signal in nerves

What are the stimuli in this situation?

Impulses

Impulses = signals in nerves

Sensory organ --impulse--> Brain

Once the impulses reach your brain, you become aware

Brain --impulse--> Muscles

You can move and react to the stimuli

1. What stimuli will your body experience in the situation described underneath?
2. How will the brains react to these stimuli?

You are using the stove, the pan has been on the stove for about 10 minutes. You touch the metal handle of the pan.

What you should do:

• Read pages  88-89
• Do asgmt  1-10, 

Done with the above?

• Work on the next basics
• Write down the difficult words
• Make a scheme

Zs = Working in Silence

• No asking questions
• Silent, don't disturb anyone
  
• Stay at your  desk

What you should do:

• Read pages 88-89
  
• Do asgmt 1-8, 4c pgs. 90-92 

Done with the above?

• Work on the next basics
  
• Write down the difficult words
  
• Make a scheme

Zw = Working with whispering

• Teacher is available for questions
• Only whisper with the student next to you
• Stay at your  desk

Look up and around your desk

• Desks: empty and straight
• Chairs:  underneath the desks
• Floor: no rubbish