Lesson Notes By Weeks and Term - Senior Secondary 3
Practical of flowers and fruits
Practical of flowers and fruits
TERM – 1ST TERM
WEEK ELEVEN
Class: Senior Secondary School 3
Age: 17 years
Duration: 40 minutes of 5 periods each
Date:
Subject: Biology
Topic: PRACTICAL OF FLOWERS AND FRUITS
SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to
INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers,
demonstration, videos from source
INSTRUCTIONAL MATERIALS: Videos, loud speaker, textbook, pictures
INSTRUCTIONAL PROCEDURES
PERIOD 1-2
|
PRESENTATION |
TEACHER’S ACTIVITY |
STUDENT’S ACTIVITY |
|
STEP 1 INTRODUCTION |
The teacher show the floral part of the flower and it's arrangement to the students |
Students pay attention |
|
STEP 2 EXPLANATION |
Teacher explain the placenta ion of floral plant to students |
Students pay attention and participate |
|
STEP 3 DEMONSTRATIO N |
Teacher discusses the environmental conditions necessary for photosynthesis of floral plants. |
Students pay attention and participate |
|
STEP 4 NOTE TAKING |
The teacher writes a summarized note on the board
|
The students copy the note in their books |
NOTE
PRACTICAL OF FLOWERS AND FRUITS
I. Arrangement of Floral Parts in Pride of Barbados:
- The Pride of Barbados, scientifically known as *Caesalpinia pulcherrima, has a typical floral structure. The floral parts are arranged as follows:
- Calyx: The outermost whorl, consisting of sepals.
- Corolla: The second whorl, comprising petals.
- Androecium (Stamens): The male reproductive part, usually in multiple whorls.
- Gynoecium (Carpels): The female reproductive part, typically in the center.
II. Placentation in Pride of Barbados: Placentation refers to the arrangement of ovules within the ovary. In Caesalpinia pulcherrima;
- It typically exhibits marginal placentation, where ovules are attached along the margins or edges of the ovary.
III. Types of environmental conditions Necessary for Photosynthesis:
Photosynthesis, the process by which plants convert light energy into chemical energy, requires specific environmental conditions. These conditions include: Light, Carbon Dioxide (CO2), Water, Temperature, Chlorophyll
These factors collectively contribute to the optimal conditions for photosynthesis in the Pride of Barbados.
I. Arrangement of Floral Parts in Flame of the Forest: The Flame of the Forest typically has the following arrangement of floral parts:
- Calyx: The outermost whorl, consisting of sepals.
- Corolla:The second whorl, comprising petals. The petals are often bright orange-red in color, giving the plant its name.
- Androecium (Stamens): The male reproductive part, usually multiple stamens.
- Gynoecium (Carpels): The female reproductive part, often with a single carpel.
II. Placentation in Flame of the Forest: Placentation in Butea monosperma is usually axile, where ovules are attached along the central axis or column of the ovary.
III. Types of Environmental Conditions Necessary for Photosynthesis in Flame of the Forest:
Like other plants, the Flame of the Forest requires specific environmental conditions for photosynthesis, including:
- Light: Adequate sunlight is essential for photosynthesis.
- Carbon Dioxide (CO2): Sufficient carbon dioxide, which the plant absorbs from the air.
- Water: An adequate water supply is crucial for the photosynthetic process.
- Temperature: Photosynthesis is temperature-dependent. Butea monosperma is well-suited to tropical and subtropical climates.
I. Arrangement of Floral Parts in Hibiscus: The Hibiscus flower typically has the following arrangement of floral parts:
- Calyx: The outermost whorl, consisting of sepals.
- Corolla: The second whorl, comprising large, colorful petals.
- Androecium (Stamens): The male reproductive part, usually multiple stamens fused into a tube.
- Gynoecium (Carpels): The female reproductive part, often with a single, five-lobed ovary.
II. Placentation in Hibiscus: Placentation in Hibiscus is generally parietal, where ovules are attached to the inner wall (parietal region) of the ovary.
III. Types of Environmental Conditions Necessary for Photosynthesis in Hibiscus: Hibiscus, like other plants, requires specific environmental conditions for photosynthesis. These conditions include:
- Light: Adequate sunlight is crucial for photosynthesis. Hibiscus plants thrive in full sunlight.
- Carbon Dioxide (CO2): Sufficient carbon dioxide is necessary for the Calvin cycle of photosynthesis. Plants generally extract carbon dioxide from the air.
- Water: An adequate water supply is essential for the photosynthetic process.
- Temperature: Photosynthesis is temperature-dependent. Hibiscus plants are generally well-suited to warm climates and may not tolerate frost.
EVALUATION: 1. Describe the general arrangement of floral parts of a flower.
CLASSWORK: As in evaluation
CONCLUSION: The teacher commends the students positively