5.3 Vision 1HVTTO

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

5.3 Vision

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

       Laptop/Book

       Notebook, pencil case

• Bag on the floor
  
• Read pages 122-125

Lessongoals

• Remember: I can name and recognize the parts of the eye by identifying them on a diagram.
• Understand: I can explain how the parts of the eye work together to help me see by describing their roles in vision.
• Analyze: I can list problems with sight and how they are corrected by identifying common vision issues and their treatments.

Homework 5.3

Asgmt 9-19, (20)

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

Scan the chapter

Use your book and laptop/notebook

• Go to chapter 5.3 on pages 122-124
• 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

Eyes see light. Light is a(n) ... (1 word)

Eye external

eyebrow

Keeps sweat out of your eyes

Helps show emotion

Eyelid

Disperse tears over the eye

Keeps eye from drying out

eyelashes

Protects eye against light and dust

pupil

entrance for light

iris

changing the size of the pupil

sclera

hard protective outer layer of the eye

cornea

tough see-through protective layer of the eye

sclera

hard protective outer layer of the eye

Lens

Iris

Cornea

Eye muscle

Cilliary muscle

Retina

Fovea

Blind spot

Optic nerve

Sclera

Vitreous body

Why don't we notice the fact that our retina has a blind spot?

How you see 

Light falls on an object

Light stimuli are reflected by the object towards your eyes

The lens focuses the light on your retina, making you see a clear image.

It also turns the image upside down.

Optic nerve sends impulses containing the image towards the brain

The brains turns the image upside down again.

You now see the cup

stimulus

impulse

Sensory receptors in the retina change the light stimulus into an impulse.

There are 2 types of specialized cells that do this:

• Rods - react to light and dark, they see black and white images
• Cones - react to colours

The fovea contains a lot of cones, the other parts of the retina contain mostly rods

!

Think-Pair-Share

• Think: Work on the assignment on your own.
• Some people need glasses, what part of their eye isn't functioning like it should?
• In what way is it not working correctly?

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

short-sightedness can be corrected by using a concave lens

Long-sightedness can be corrected by using a convex lens

These words I'll add to my PIF

What you should do: 5.3

• Pages  122-124 TB
• Asgmt  9-19, (20) WB pgs 124-127

Done with the above?

• Work on the next chapter(s)
• Learn for the test 
• Make 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: 5.3

• Pages 122-124 TB
• Asgmt 9-19, (20) WB pgs 124-127

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

Some people are colourblind, This means that they cant see certain colours.
What part(s) of their eye might not be functioning? Where are those parts mostly found?

Tidy Duty

3 people each lesson

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