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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
1 / 12
volgende
Slide 1:
Tekstslide
Biologie
Middelbare school
vwo
Leerjaar 1
In deze les zitten
12 slides
, met
interactieve quizzen
en
tekstslides
.
Lesduur is:
15 min
Start les
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Deel
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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
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