1.3 Like a pair of bellows

• Biology
• Middelbare school
• vwo
• Leerjaar 2

0

Ch. 1 Breath in ... and out

Materials 

- iPad

- Pen, pencil

- note book

For a mark

- No

Lessonup

- Yes

Bags

in bag closet

Phones 

in your bag /

in bag closet 

today''s program 

homework revision: what your teacher saw...

start up activity 

to the book

homework

what your teacher saw....

incomplete answers

answers reflecting no study of the theory

only section a. 

how would you like the homework revised? 

revision homework 

par. 1.2

- ex. 6-11 (excl. 8)

par. 1.3

- ex. 1

Learning objectives: 'what I am going to learn?'

I can .... 

• name the muscle between your ribs responsible for chest breathing 
• come up with synonyms for the different types of breathing 
• describe the different types of breathing

New key terms:

thoractic - abdominal - diaphragmatic - intercostals - diaphragm - tidal volume - vital capacity - lung volume

start activity

• students stand upright
• they are not allowed to move anything, not even their rib cage
• they keep their mouth open, waiting for the air to enter
• they have to remind themselves what happened the moment they start breathing

Read buttons A-D

Do exercises 1-5

Revision: let them stand upright  in pairs and have students describe inhalation and exhalation to their partner

• breathe while in a posture, than choose the other
  

• describe how the posture affects your way of breathing 
  

lung volumes 

Tidal volume: The amount of air that enters the lungs during normal inhalation at rest

Residual volume: The amount of air left in the lungs following a maximal exhalation.

Vital capacity: The maximum amount of air that you can expel from your lungs after a maximum inhalation. 

 (or vice versa) 

Total lung volume = 

 residual volume + vital capcity

homework 

practical 

Vital Capacity and Peak Expiratory Flow: