4.2 Your skeleton and your posture 1HVTTO

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

4.2 Your skeleton and your posture

• Jacket in your locker
• Put your things on your desk

       Laptop/Book

       Notebook, pencil case

• Bag on the floor
  
• Read pages 91-93

Lessongoals

• You can recognize the main parts of the skeleton
• You can list the tasks the skeleton performs
• You can explain why good posture is important, and why bad posture is bad
• You can list adaptations of the spine that help it perform its functions

Homework 4.2

Asgmt 9-17

Wheel of homework

Go to Lessonup.app and use this code

Reward

Penalty

Rewards

• +1 cm2 cheatsheet = you get to make a cheatsheet for a test. This starts being 1 by 1 cm. Everytime you earn this it gets 1 cm bigger to a max of 4 by 4 cm.
• 1/3 +0.5 = If you earn this 3 times you get to add 0,5 to one of your biology marks.
• Snitch = You can pick a classmate who also is checked for homework, you earn two V's (having 3 earns you a 1/3 +0,5)
• Too bad = You only get one V
  

penalties

• 45 min extra worktime = you need to come after school and do homework, this will last for 45 min or until the task is done
• Coloringpage = You get to pick a coloringpage, You need to color it and perform tasks that might be on it. You need to hand it in during the next lesson, If you don't you get 2 marks.
• 2/1 marks = a mark is an X, if you get 3 of these you will automaticly earn the 45 min extra worktime.
• Snitch = You can pick a classmate who also is checked for homework
• Lucky! = You don't get a penalty

Think-Pair-Share

• Think: Work on the assignment on your own.
• Make a list: Which (English) names of bones in your body do you know?

• Pair: Discuss and compare with your neighbour, improve your answer
• Share: Talk about given answers during plenary session.

Scan the chapter

Use your book and laptop/notebook

• Go to chapter 4.2 on pages 91-95
• Quickly scan the text for difficult/unknown words
• Make a list of all the words you don't know/understand, add these to your PIF
• Add descriptions and/or synonyms of these words during the lesson

Ribcage

Protects lungs and heart

Backbone/spine

Protects the spinal cord

Torso

The limbs and skull are connected to the torso

Limbs

the arms and legs are limbs, they are used for locomotion

Important parts

Skull

Contains and protects the brain

vertebra

femur

skull

breastbone

rib

pelvis

Why have a skeleton?

Functions

The skeleton performs 4 functions:

1. Rigidity and sturdiness
2. makes movement possible
3. Protects organs
4. Give shape to the body

Some bones contain bone marrow.

The bone marrow makes the cells of your blood

5?

Think-Pair-Share

• Think: Work on the assignment on your own.
• Choose one on the bad postures in the image
• Write: How does one get such a posture?
• Write: What makes this posture bad?

• Pair: Discuss and compare with your neighbour, improve your answer
• Same posture: Compare and improve
• Different posture: discuss if you agree
• Share: Talk about given answers during plenary session.

Why is good posture important?

Posture

• Arises at young age
• When grown up, hard/impossible to change
• What is good posture?

Different postures

The spinal column

Good posture, helps prevent (back) pain
The spine has 2 mechanisms that help

• Double-S-shape
• Invertebral discs

Backmuscles have a big job in keeping this shape.

Works as a shock absorber

Can move slightly allowing you to bend your back.

also helps absorb shocks.

Invertebral disc = anulus fibrosus

gelatinous core = nucleus pulposus

These words I'll add to my PIF

00:10

How can this woman improve her sitting posture

What you should do: 4.2

• Pages 91-95 TB
• Asgmt 9-17 pgs. 87-92 WB

Done with the above?

• Work on the next chapter(s)
• Learn for the test 
• Do other homework
• Read a book

Zs = Working in Silence

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

What you should do: 4.2

• Pages 91-95 TB
• Asgmt 9-17 pgs. 87-92 WB

Done with the above?

• Work on the next chapter(s)
• Learn for the test 
• Make other homework
• Read a book

Zw = Working with whispering

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

Tidy Duty

3 people each lesson

• Desks: empty and straight
• Chairs:  underneath the desks OR end of day: on the desks
• Floor: no rubbish