Bees, Flowers, and Pollination
A sample Roots and Shoots Garden Curriculum lesson plans
Author: Molly Brown
|

Photo © Dan Mushrush. Used by permisison.
|
For our intergenerational gardening feature, Molly Brown, one of the creators
of Roots and Shoots, has generously allowed us to share one of the
lessons from the programs K-5 curriculum. We've adapted this second
grade lesson titled Bees, Flowers, and Pollination to give you a taste. Learn
more about Roots and Shoots
Lesson Objectives:
1. understanding of the relationship between bees and flowers
2. learning about pollination
3. learning about the bee as the Bug of the Week
4. understanding how to make a flower arrangement
5. creating your own flower arrangement
Bug of the Week The Honeybee
The volunteer/teacher can explain the partnership between bees and flowers,
and also tell about the way bees live in social communities.
Bees and flowers are important partners; they need each other. The bees
need food from the flower and the flower needs to make seeds with the bees
help.
Bees are like us; they live and work in communities. They are skilled builders
and model housekeepers. They are social insects living in hives with many
cells or little rooms for different uses. There are also many kinds of jobs
to be done in the colony; females are the workers who are also the builders,
nurses, food gatherers, and maids. The workers also make the wax for the
cells, clean the cells, make the food, and even keep the hive cool by making
wind with their wings. Young female bees are house bees and later they become
field bees who look for flowers and bring back nectar to the hive.
There is one queen who lays all the eggs in the hive; she can lay 1500 eggs
a day. The male bees are called drones; their job is to mate with the queen.
Bees are important to us: we use their wax for candles and lipstick, we
like to eat their honey. Can you thank a bee today for the food you eat?
Why?
Their body parts include antennae (to smell), eyes (to see colors), four
wings, six legs, abdomen, and a stinger.
A bee has enemies: bears, praying mantis, other bees, ants, toads, and birds.
They defend themselves with their stingers. Yellow and black colors on the
bee are Warning Colors to enemies.
Lets interview the bee (use a bee puppet if possible):
1. How do you eat?
Bees are suckers, using a feeding tube in their mouths to get the sweet
liquid called nectar from the flower to make honey.
2. What do you eat?
Bees eat both the flower nectar and the flower pollen which is a yellow
grain powder. They carry the nectar back in their honey stomach (they have
two stomachs). They carry the pollen back in two shopping bags on their back
legs. The nectar and pollen are mixed for food. Extra food is stored in wax
cells and is called honey in a honeycomb.
3. Where do you live?
Bees live in hives nests, man-made
bee boxes, on trees, in houses, everywhere.
4. How do you travel? Bees walk, and they fly with two pairs of wings. They tell other bees
where to find food by dancing as a language. They make a bee line to the
flowers and home again.
5. When are you awake? Bees are awake during the daytime and have good eyes to see the sun,
trees, flowers. They feel with their antennae.
6. How do you reproduce? The queen lays eggs in the cells. The female bees care for the nurseries
(cells). The eggs hatch into larvae, then develop pupae, and finally become
adults. The queen mates with the drones outside the hive.
Flower Parts and Pollination
The volunteer/teacher will explain this to the students using a diagram
of a flower and its parts on an easel or blackboard.
A flower is a seed factory. A flower and a bee have a strong, vital connection
with each other. Without this connection the flower cannot manufacture seeds
and bee would not have food. We would not have any food, either. The bee
pollinates the flower. How does this work?
Lets look at the parts of a flower first. On the diagram we can see petals
(landing platforms for bees) and sepals (which protect flower buds before
they open). The female parts are the pistil and ovaries. The male parts are
the stamens and pollen (sperm cells).
What is pollination? This is the transfer of pollen from the male to the
female parts of the flower. When a pollen grain lands on the pistil the sperm
cells travel down to the ovary and join with egg cells to complete
fertilization.
The new cell will become the seed surrounded by a fruit ovary.
Who are the pollinators? A pollinator is anything that
helps carry flower pollen to the pistil. These include bees, wasps, moths,
wind, birds, butterflies,
bats, and flies. (The volunteer/teacher can show pictures of the pollinators
from the book The
Reason for a Flower by
Ruth Heller.)
Flowers can advertise for pollinators with their fragrances, markings on
petals, colors, nectar, and even landing platforms (e.g., iris flower).
Poem of the Week: Honeybees by Paul Fleischman (Microsoft Word
document)
Dissecting Flower Parts and Learning
the Art of Flower Arranging
Group Activity
Suggest that the older volunteers bring in flowers from their gardens and in small groups help students with flower dissection and arrangement.
A volunteer/teacher will explain the art of flower arranging according to
the Japanese tradition called Ikebana. In this arrangement there are three
heights of flowers, leaves, and/or sticks. From tallest to shortest, they
symbolize Heaven, Man, and Earth. It is a suggestion students might want
to follow for their own arrangements.
Before they make their flower arrangements in their groups, first dissect
a flower. Each student will have his/her own flower to dissect, using a magnifying
glass to see its parts. Each student will have a Flower
Parts Diagram (PDF).
For the flower arrangements each student will have a small can (tuna fish
or cat food can) decorated with a ribbon and filled with damp florists foam.
Each student will have a pair of scissors, and there will be a collection
of spring flowers for each group to use. The flower arrangements are taken
home to families (to mothers if its near Mothers Day).
A Garden Song Mother Earths Routine
[Editor's Note: Sources for music mentioned
in the lessons are included in the curriculum appendix.]
Each student will have a song sheet and the tape will be played.
Materials Checklist
Volunteer Lesson Plans
Easel with newsprint/markers or a blackboard
Draw a picture of flower parts
Compost flannel board
The Reason for a Flower by Ruth Heller (reference book to show pictures)
Poster of Bug Interview questions
Bee puppet
Group Activity Supplies:
Newspapers
Flower parts sheet per student
Flower to dissect per student
Magnifying glass per student
Scissors per student
Decorated can with wet florists foam per each student
Pens and pencils
Song sheet and tape Mother Earths Routine
Recommended Books
The Flower by Chris Baines,
Crocodile Books, Interlink Publishers, 1990
The Reason for a Flower by Ruth Heller, Grosset and Dunlap, 1983
Flowers and What They Are by Mary Elting, Whitman Publishing Co., 1961
Copyright 1999 by Dirck and Molly Brown. Used by permission.
|