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My Lesson Plan (Mutthayom 4/3)

By Sofia Lailatur Rahmah

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Lesson Plan (Mutthayom 4/3)

School Name : Suksasart Demonstration School of KKU (Secondary School)

Subject : Biology

Code subject : SCI 31246

Topic : Growth of Embryonic

Time : 50 minutes

Teacher’s name : Ms. Sofia Lailatur Rahmah

Class : Mutthayom 4/3 Section 1

Date : Monday, February, 12^th 2018

1. Core Concept

At the end of a 50-minute lesson, at least 90 % of the students should be able to :

- Differentiate the growth of embryonic in Frog, Chicken and Human

- Begin to understand the growth and developmental stages of Frog

- Begin to understand the growth and developmental stages of Chicken

- Begin to understand the growth and developmental stages of Human

2. Purpose

- Understand and apply knowledge of factual, conceptual, procedural in science, technology, art, culture, and Humanities in a specific field of study in accordance with their aptitude and interest in solving problems.

- Student are expected to compare the difference between growth and developmental stages of Frog, Chicken and Human.

- Develop a behavior (be honest, discipline, responsibility, caring, polite, friendly, mutual cooperation, peace-loving, responsive and pro-active) and showed the attitude as part of class learning.

3. Content

a. 3 steps embryonic development of frog:

- Egg:

· Frog lays many eggs at one time

· The eggs are covered with a jellylike coating.

- Tadpole:

· have gills for breathing in the water,

· It has a tail, but no legs.

· As a tadpole grows, lungs begin to form.

· Back and front legs begin to grow. These parts allow the adult frog to live on land

- Adult frog:

· The lungs form

· Frog is now ready to live on land

- Metamorphosis: is the changes that a frog goes through during its life cycle.

b. 3 weeks growth embryonic of chicken:

- 1st week:

· Eyes begin to form

· Heart begins to beat

· Formation of reproductive organs

- 2nd week:

· Feathers begin forming

· Beak starts to harden

· Toes fully formed

· Embryo turns head towards blunt end of egg

- 3rd week:

· Small intestines taken into body

· Fully covered with feathers

· Growth nearly complete

· Yolk sac drawn into body

· Embryo becomes chick and starts breathing air in air cell of egg

· Chick hatches

c. Embryonic development of human:

- Gametogenesis: is a process by which the diploid germ cells undergo a number of chromosomal and morphological changes (meiosis) form mature haploid gametes.

- Fertilization: Activates egg & brings together the nuclei of the egg and sperm. This step produce zygote.

- Cleavage: Partitions the zygote into many smaller cells through Morula, Blastula, Gastrula.

- Morula: Early stage embryo consisting of cells in a solid ball formed by cleavage.

- Blastula: A hollow sphere of cells formed by cleavage of the morula. Contains the blastocoel that is fluid-filled. It has blastopore where the gastrulation begins.

- Gastrula: Transformation of the blastula into an embryo possessing 3 germ layers, ectoderm, mesoderm, endoderm.

- Neurula: Neurulation occurs. The neural ectoderm tube is differentiated into neural tissue which develops into the brain and spinal cord is formed.

- Organogenesis: The process by which the three germ tissue layers of the embryo develop into the internal organs of the organism body.

- Implantation: Embedding of blastocyst into uterine lining begins at day 7

· Trophoblast forms syncytial trophoblast: erodes into endometrium

· Cellular trophoblast: carries nutrients to inner cell mass

· Lacunae and primary villi formed by trophoblast

- Placentation: Development of placenta from edges of blastocyst

· Placenta: Organ that forms from the chorion and the endometrium and allow the embryo/fetus to exchange nutrients and waste.

2. Activity

a. Preliminary Activities (13.00 - 13.10)

1. Class Opening and checking for student attendance

2. Teacher will review the previous topic to the students

3. Teacher tell students the motivation/apperception that all living things produce offspring (reproduce), but life begins in different ways for different animals.

b. Core Activities (13.11 - 13.40)

1. Teacher show the Newborns video of frog, chicken and human and encourage them to pay close attention to how the birth process varies from species to species. If possible, have them to watch the clip more than once.

2. Teacher explain through the PowerPoint Presentation about Embryonic Development of Frog, Chicken and Human

3. Student and teacher conclude the Embryonic Development of Frog, Chicken and Human.

4. Student works in group to answer short quiz by the teacher and collect the right answer together.

c. Class closing (13.41 - 13.50)

1. Closing for class

2. Class documentation

3. Media

- Book, Pictures, Videos, PowerPoint presentation and LCD Projector

4. Evaluation

Teacher will give a short quiz for each student groups (works in group).

Directions:

- Please sit in group then write your group number and member name (using alphabet) on this paper.

- Match the vocab and the meaning by fill the blank side with letters.

Vocab		Meaning
1	Gametogenesis	F	a) Early stage embryo consisting of cells in a solid ball formed by cleavage
2	Metamorphosis	D	b) Fertilized egg
3	Fertilization	G	c) A hollow sphere of cells formed by cleavage of the morula. Contains the blastocoel that is fluid-filled. It has blastopore where the gastrulation begins.
4	Zygote	B	d) The changes that a frog goes through during its life cycle.
5	Cleavage	I	e) The process by which the three germ tissue layers of the embryo develop into the internal organs of the organism body.
6	Morula	A	f) is a process in which the diploid germ cells undergo meiosis to form gametes
7	Blastula	C	g) Activates egg & brings together the nuclei of the egg and sperm
8	Gastrula	J	h) The neural ectoderm tube is differentiated into neural tissue which develops into the brain and spinal cord is formed.
9	Neurula	H	i) Partitions the zygote into many smaller cells.
10	Organogenesis	E	j) Transformation of the blastula into an embryo possessing 3 germ layers, ectoderm, mesoderm, endoderm.