5.7 Feeling 1HVTTO

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

5.7 Feeling

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

       Laptop/Book

       Notebook, pencil case

• Bag on the floor
  
• Read pages 132-133

Lessongoals

• Understand: I can explain how my skin helps me feel by describing how sensory receptors detect touch, temperature, and pain.
• Remember: I can name the sensory receptors found in my skin by correctly identifying them.
• Remember: I can recognize the three layers of the skin and describe their functions by correctly identifying them and explaining their roles.

Homework 5.7

Asgmt 35-41

Scan the chapter

Use your book and laptop/notebook

• Go to chapter 5.7 on pages 132-133
• 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

Wheel of homework

Go to Lessonup.app and use this code

Reward

Penalty

Sensory organs

What is the name of the sensory receptors in the nose?

1. olfactory cells
2. taste buds
3. rods and cones
4. cochlea

What are stimuli and impulses

1. A stimulus is something that sensory organs take in. Impulses are signals in the nerves
2. An impulse is something that sensory organs take in. Stimuli are signals in the nerves
3. They are both something taken in by sensory organs
4. They are both signals in your nerves

Would a person that has a cold be able to taste the difference between sugar and a lolypop?
Explain why (not).

Sensory organs in the skin

5 different sensory organs

1. cold receptor
2. pressure receptor
3. heat receptor
4. touch receptor
5. pain receptor

cold receptor

pressure receptor

heat receptor

touch receptor

pain receptor

nerves

Outer part of the skin.

Contains many dead cells, produces new cells constantly

Protects the body.

Layer of fat that protects organs/tissues underneath from bumps/falls

Also helps keep you warm

Main part of the skin

Contains many different cell types that perform different tasks:

• Contains the sensory receptors
• Contains hairs
• Produces sweat (control body temperature)
• Produces oils (keeps epidermis from drying out)

Layers of the skin

Hair

touch receptor

epidermis

dermis

subc. fat

sweat gland

bloodvessel

pressure receptor

hair muscle

pain receptor

Pair-Share

Pair: Discuss and compare with your neighbour, decide on an answer
Take a look at image 5.21 different sensory receptors in your skin in your book on page 132.

Notice how some receptors are closer to the surface of the skin than others.

Talk about and try to explain: Why are some sensory receptors closer to the surface than others? 

Use sentences like:

• The sensory receptor for ... is deeper than the one for .. because it ..
• Being closer to the surface of the skin helps the ... receptor perform its function better because ....
• If the ..... receptor were deeper/closer to the surface it would have trouble sensing ... because ...

Share: Talk about given answers during plenary session.

These words I'll add to my PIF

What you should do: 5.7

• Pages  TB 132-133
• Asgmt  35-41 (40) WB pgs 137-139

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: 5.7

• Pages TB 132-133
• Asgmt 35-41 (40) WB pgs 137-139

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

The epidermis does not contain any sensory receptors.

What problem would you have if this were the case?

Tidy Duty

3 people each lesson

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