Day4

At the end of the lesson, the pupils are expected to: 1. classify plants 2. describe plants with each characteristic. 3. differentiate flowering from non-flowering plants.

Observe the pictures below…

Grass Gumamela

Bougainvill ea

Pine Tree

Club Moss Fern

-Do these plants have similar characteristics? -How do they differ? -Which plants bear flowers? -Which plants do not bear flower?

Plants may be classified according to the presence or absence of a part. For example, plants may be flowering or non- flowering.

There flowers contains pollen and tiny egg called the ovules and serve as the reproductive part of most plants. These plants may bear brightly colored flowers to attract insects and may also release pleasant odors.

Gumamela, bougainvillea,and grass have similar parts. They have roots, stems, leaves and flowers. They are called flowering plants.

Flowering plants form seeds which come from flowers. Seeds are pollinated by wind, water, animals, birds, insects and even man.

Gumamela and bougainvillea are pollinated by insects such as butterflies and bees. They have bright-colored petals to attract these insects.

Grass on the other hand, bears flowers, too. However , they produce dull colored flowers that lack scent. Their seeds are carried by the wind.

Flowering plants (Angiosperms) develop roots, stems, and leaves. They have an efficient vascular or transport system for carrying food and water.

The vascular system is composed of tiny tubes that run through the plant. These tubes carry nutrients and water to the plant.

Flowering plants produce seeds. These seed- producing plants are further divided into: 1. monocotyledon (monocot) or 2. dicotyledon (dicot) This division is based on the number of seeds cotyledon.

A corn plant is a monocot.

The avocado plant is a dicot.

There are simple green plants on Earth. They do not have any vascular tissues. They usually attach themselves to rocks. These plants reproduce through spores that are dispersed in the wind.

Ferns have roots, leaves and stems. Their leaves are popularly known as fronds. On the underside of each frond, dark cases called sori are found. Sori contains many tiny spores. These are usually blown away by the wind when they mature.

Pine trees belong to the cone-bearing plants because they produce cones. Cones carry the male and the female spores. When these two sex cells unite, they form new plants. They have well developed roots, stems and needle-shaped leaves. These plants do

Why is there a need to group plants?

Grouping plants according to their common characteristics make studies on them easier. In our lesson, we have classified some common characteristics by which plants may be grouped. Plants may be grouped according to the presence or formation of flowers, seed, true roots, and stems.

Flowering plants usually bear flowers, seeds and in most cases fruits. Some non-flowering plants produce cones that carry spores.

Scientist classify or group plants so that there is a systematic way of identifying them. This is important in research and in their continuous search for new plants. Anybody who possesses the basic knowledge of how plants are grouped would find it easy to classify a new found plant.

Classification of Plants. Available: http://www.theseedsite.co.uk/class.html lesson plan in how to classify plants. Available: http://www.thesolutionsite.com/lpnew/lesson/100 1/classifyingplants.html

Non-flowering Seed Plant. Available:http://www.amnh.org/exhibitions/hall_tour/sp ectrum/8. html Llarinas Jose F. and Pelobello Emily M., (1999). Into the Future: Science and Health, Textbook for Science and Health for Grade V. Diwa Scholastic Press Inc.