The life cycle of a plant

11th November, 2011 - Posted by Sammie Gann - No Comments

Learn about the life cycle of a plant and enjoy the interactive flower dissection activity that will help you find out more about the flower petals, sepals, carpel, nectaries, receptacle and stamens.

Experiment with the different parts of a flower, sort them into the correct categories, label them and learn useful information. Did you know that stamens make pollen, the nectar used by bees to make honey is made in the nectaries of a flower and petals are often bright so they attract insects?

Introduction

1. Review the following facts about plants with the class.

* plants need light, warmth and water to grow well

* plants need healthy leaves, roots and stems to grow well

* a number of plants need to be used in investigations to provide reliable evidence.

2. Explain to the children that they are going to label and dissect a flower in the Bitesize life cycles activity.

  1. Watch Learning Zone Class Clips – Reproduction in plants and ask the children to match the names to the parts of the flower.

Activity

 

  1. Explain that reproduction is a process that all living things do. Reproduction of flowering plants is made possible through the processes of pollination, seed production, seed dispersal and germination.
  2. Watch Learning Zone Class Clips – The life cycle of a dandelion. If possible, present this in the context of a story of the life of a flower.
  3. On an interactive whiteboard, open the Bitesize life cycles activity.
  4. Explain briefly the key points and functions of the petal, sepal, nectary, style, stigma, ovary, ovule, anther, filament, receptacle. Show the class how to drag labels to the right parts of the plant.
  5. Click on the Dissect button to show how to pull away each section of the plant.
  6. Explain that rather than destroying a living thing, this online resource is ideal for dissection as no real plant is harmed.
  7. Divide the class into groups with a computer for each group. Allow each group to work through the Label and Dissect screens, taking it in turns within the group to control the mouse. Walk around the groups, talking through problems and encouraging those who have finished early to click on the magnifying glasses to find out more information.

Plenary

  1. Complete the Label and Dissect screens of the Bitesize life cycles activity as a class on the interactive whiteboard.
  2. Ask the children to identify and explain the functions of each part of the plant. Can they retell that part of the story?
  3. Watch Learning Zone Class Clips – Pollination in plants. Ask the children what the special delivery is (Insects).
  4. Ask the children to act out pollinating plants through insects.

Extension

 

Ask the children to complete the Life cycles worksheet (PDF 65KB) matching the right name and function to each part of the flower.

Homework

 

Ask the children to look for different flowers on their way to and from school. On close inspection, which reproductive parts of a flower can they see? Ask them to report their findings to the class.

Are you teaching Plant Growth and Development in your classroom?

Check out this comprehensive kit using Wisconsin Fast Plants that teaches your students about the needs of plants and the interdependence of organisms.

Plant Growth and Development from STC

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