Unit 6 - BS2

Today's planning
At the end of the lesson...
  • ... you have repeated yesterday's lesson
  • ... you can tell what pollination is
  • ... you can describe and recognise the difference between self-pollination and cross-pollination
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Slide 1: Tekstslide
BiologieMiddelbare schoolvwoLeerjaar 1

In deze les zitten 12 slides, met interactieve quizzen en tekstslides.

time-iconLesduur is: 15 min

Onderdelen in deze les

Today's planning
At the end of the lesson...
  • ... you have repeated yesterday's lesson
  • ... you can tell what pollination is
  • ... you can describe and recognise the difference between self-pollination and cross-pollination

Slide 1 - Tekstslide

Flower parts with features and functions:  
kenmerken en functies   
Sepals
Petals
Stamen
Carpel
Male reproductive organ
Stigma, style and ovary
To attract insects
Produce egg cells (female sex cells) in ovum
Filaments and anther with pollen sacs
Produce pollen grains (male sex cells)
To protect the flower bud against cold and dehydration
Large and brightly coloured, sometimes small and green
Usually green

Slide 2 - Sleepvraag

Stigma
Petal
Ovary
Sepal
Filament
Stalk
Carpel
Stamen
Anther
Top part of stalk

Slide 3 - Sleepvraag

Practice
Go to SomToday
Open the document 'worksheet 2 - BS1'
Do the questions

Slide 4 - Tekstslide

Pollination

Slide 5 - Tekstslide

Cross-pollination
Self-pollination

Slide 6 - Tekstslide

Practice
  • Go to SomToday
  • Open the document 'worksheet 3 - BS2'
  • Do the questions

Slide 7 - Tekstslide

Today's planning
At the end of the lesson...
  • ... you will have repeated what self pollination and cross pollination is
  • ... you will be able to tell what features belong to insect pollinated flower and wind pollinated flowers

Slide 8 - Tekstslide

Pollination
Self-pollination
Cross-pollination
No pollination
Number 1
Number 2
Number 3
Number 4

Slide 9 - Sleepvraag

Insect-pollinated flowers
  • The petals are coloured
  • The flowers have nectar and are scented
  • Stamen are inside the flower
  • Stigma is usually inside the flower
  • Pollen grains are rough and sticky
Wind-pollinated flowers
  • The petals are small and green
  • The flowers don't have nectar
  • Stamen are outside the flower
  • Stigma is usually outside the flower
  • Stigma has the shape of a feather

Slide 10 - Tekstslide

Insect-pollinated flowers
Wind-pollinated flowers
The petals are coloured 
The petals are small and green
The flowers have nectar and are scented
The flowers don't have nectar
Stamen are outside the flower
Stamen are inside the flower
Stigma is usually inside the flower
Stigma is usually outside the flower
Stigma has the shape of a feather
Pollen grains are rough and sticky
Pollen grains are smooth and light

Slide 11 - Sleepvraag

Practice
  • Go to worksheet 3 - basic 2
  • Do part B

Slide 12 - Tekstslide