Lymphatic system 8 class

Topic

Lymphatic System

Date

Class

8 grade

Teaching aims

• to generalize and consolidate knowledge about the structure of the Lymphatic System.

• to understand the function of lymph.

• to know the difference between blood and lymph.

• to know which cells are present in lymphatic system.

Content objectives

By the end of the lesson students will be able to:

• describe the lymphatic system and the relationship between the blood and tissue fluid and lymph

• give definition

• know about the functions of lymph

• use information about the lymphatic system in practise

Language objectives

Lexis: Lymph, Lymphatic system, Lymphatic capillaries, Pathogen, fighting cells, Tissue fluid, Edema, absorption, valve, backflow, Lymph nodes, Palatine tonsil, Thymus, spleen, Thoracic duct, Cervical Lymph nodes, Axillary Lymph nodes, Inguinal Lymph nodes, Fluid, Toxins, Waste, Homeostasis

Functional language: comparing, explaining , discussing, analyzing, sorting the cards, describing

Assessment

• generalize and consolidate knowledge about the function of lymph

• find the difference between blood and lymph

• describe the lymphatic system

Cognition

working with definitions and doing research about the topic of “Lymphatic System”

Culture

understanding that topic of lymphatic system is essential for human health

Communication

• discussing function of lymph

• defining key terms

• describing difference between blood and lymph

Content

working with text about “Lymphatic System” and present understanding of the topic

Materials

Books, A4 papers, colorful pencils, envelop, “Traffic Light”.

Stage / Aim

Time

40 m

Procedure

Lead in

2 min

T: Hello everyone. Please, I want you to sit down. I want you to open the copybooks and write down the date. Today’s lesson is going to focus on “Lymphatic System”. After today’s lesson you will be able to describe the lymphatic system and the relationship between the blood and tissue fluid and lymph. We will start with Explanation and we will finish with Activity.

Warm up

( to set the context and activate prior knowledge)

5 min

T: Before we start I want you to open the books on page 44 and think about why is edema formed in our body.

Ss: Students brainstorming why is edema formed in our body.

T: Well done. Now, Let’s work with new terminology. There is one “Traffic Light” on each table. I want you to look at new words and place the words that you know on “Green” light, the words that you might know on “Orange” light and the words that you don’t know on “Red” light.

Ss: Students place words on corresponding places and discuss it in groups and with teacher (Attachment 0).

T: Brilliant! Let’s practice these words together. I want you to repeat these words after me!

T: Now, I’m going to give you papers with some missing words, try to mingle and solve the task.

Presentation

( to present the Lymphatic system)

10 min

Now, moving on to Explanation let’s open the text on pages 44 and 45 and listen to me?

ICQ: Do we have to read the text on page 44 or 64? (44)? Do you have to read the text or listen to me? (Listen to you)

Лимфатическая система тесно связана с системой кровообращения. Основные функции лимфатической системы:

1. транспортация избыточной жидкости из организма в кровоток;

2. защита организма от болезнетворных агентов;

3. всасывание жиров в тонком кишечнике.

Лимфатическая система играет важную роль в регуляции гомеостаза жидкости в организме. Если лимфатическая система будет нарушена, то тканевые жидкости будут накапливаться в межтканевых пространствах, что в свою очередь приведет к образованию отеков.

Лимфатические капилляры - это микроскопические трубочки с закрытым концом, которые объединяются и образуют более крупные лимфатические сосуды. Лимфатические сосуды похожи на вены. Крупные лимфатические сосуды приводят к специализированным органам - лимфатическим узлам. Затем более крупные сосуды соединяются с венами системы кровообращения в грудной клетке.

В лимфатической системе также находятся лейкоциты. Лимфатические узлы работают как фильтры для удаления патогенов. Лимфатические узлы расположены вдоль лимфатического пути. В них содержится большое количество лимфоцитов, которые борются с чужеродными микроорганизмами . Как правило, лимфатические узлы маленькие и круглые, и они не заметны человеку. Но когда они активизируются, они становятся крупнее (например, миндалины, расположенные на шее)ю Это означает, что иммунная система активно работает.

После переваривания пищи, большинство питательных веществ всасываются в тонком кишечнике и попадают в кровеносные сосуды. Переваренные жиры же, в свою очередь, попадают в лимфатическую систему.

Practice

( to consolidate the material, to check understanding of the topic)

8 min

T: Now let’s move on to practical activity. I want you to work in 2 groups and solve the task. (Teacher gives students the envelope with task in it Attachment 1).

Ss: Students do creative activity.

T: Now, I want you to look at the picture on page 44 and stick the names of the lymphatic system on your posters. When you finished I want you to look at definitions and match them with words on your projects (Attachment 2).

ICQ: Do you have to write or stick the names? (Stick). Do you have to imagine definitions or match them? (Match)

T: Brilliant! Let’s practice these words together. I want you to repeat these words after me!

Production (to speak and present the lymphatic system)

10 min

T: Well done. Good job! Now I want you to present your posters and speak about Lymphatic System. Make sure that you covered questions on page 45 in “Literacy” box.

ICQ: Do you have to speak about Blood System? (No, we have to speak about Lymphatic System)? Do you have to answer the questions on page 45 in “Literacy” box? (Yes)

Ss: Students present their projects and speak about their topic.

Reflection (to reflect on what they have studied)

3

T: Good job! Thank you. Now, I want you to take stickers and post your tweets about today’s lesson (Attachment 3).

Conclusion (to finish the lesson and set the homework)

2

Now, I’d like to recap. Today we have explored the topic of “Lymphatic System”. The key things to takeaway is that it has 3-basic functions: transportation, protection and absorption. For the next lesson I want you to read the paragraph on pages 44 and 45 again and do the “Research time” box. Remember this homeworks is not optional, you must be ready for the next lesson. Have a nice day! I will see you on Friday.

English

Kazakh

Russian

Lymph

лимфа

лимфа

Lymphatic system

Лимфа жүйесі

Лимфатическая система

Lymphatic capillaries

Лимфа қылтамырлары

Лимфатические капилляры

Pathogen –fighting cells

Патогендік күресетін жасушалар

антипатогенные клетки

Tissue fluid

Ұлпа сұйықтығы

Тканевая жидкость

Edema

ісіну

Отек

absorption

сіңіру

Всасывание, абсорбция

valve

қақпақша

клапан

backflow

Кері ағын

Обратное течение

Lymph nodes

Лимфа түйіндері

лимфоузлы

Palatine tonsil

Көмегей безі

Небная миндалина

Thymus

тимус

тимус

spleen

көкбауыр

селезенка

Thoracic duct

Кеуде қуысы

Грудной проток

Cervical Lymph nodes

Мойын лимфа түйіндері

Шейные лимфатические узлы

Axillary Lymph nodes

Қолтық асты лимфа түйіндері

Подмышечные лимфатические узлы

Inguinal Lymph nodes

ингвиналды лимфа түйіндері

Ингвинальный (паховый) лимфатические узлы

Fluid

сұйықтық

Жидкость

Toxins

токсиндер

токсины

Waste

қалдықтар

отходы

Homeostasis

гомеостаз

гомеостаз

English

Kazakh

Russian

Lymph

лимфа

Лимфа жүйесі

Lymphatic capillaries

Лимфа қылтамырлары

антипатогенные клетки

Tissue fluid

Edema

Отек

Всасывание, абсорбция

valve

қақпақша

backflow

Кері ағын

Lymph nodes

Лимфа түйіндері

Көмегей безі

Небная миндалина

Thymus

тимус

spleen

көкбауыр

Кеуде қуысы

Грудной проток

Cervical Lymph nodes

Шейные лимфатические узлы

Қолтық асты лимфа түйіндері

Inguinal Lymph nodes

Ингвинальный (паховый) лимфатические узлы

Fluid

сұйықтық

Toxins

токсины

қалдықтар

отходы

Homeostasis

гомеостаз

English

Kazakh

Russian

лимфа

Lymphatic system

Лимфатическая система

Лимфатические капилляры

Pathogen –fighting cells

Патогендік күресетін жасушалар

Ұлпа сұйықтығы

Тканевая жидкость

ісіну

absorption

сіңіру

клапан

Обратное течение

лимфоузлы

Palatine tonsil

тимус

селезенка

Thoracic duct

Мойын лимфа түйіндері

Axillary Lymph nodes

Подмышечные лимфатические узлы

ингвиналды лимфа түйіндері

Жидкость

токсиндер

қалдықтар

отходы

гомеостаз

Create a life-sized drawing of the lymphatic system. Start by getting a large piece of bulletin board paper or butcher paper in any light color. Lie down on the paper and have a partner trace your body’s outline in pencil. Use a dark-colored marker, crayon or paint to draw in and label the lymph nodes and lymphatic vessels located all over the body. Note how lymph nodes vary in size.

Create a life-sized drawing of the lymphatic system. Start by getting a large piece of bulletin board paper or butcher paper in any light color. Lie down on the paper and have a partner trace your body’s outline in pencil. Use a dark-colored marker, crayon or paint to draw in and label the lymph nodes and lymphatic vessels located all over the body. Note how lymph nodes vary in size.

Create a life-sized drawing of the lymphatic system. Start by getting a large piece of bulletin board paper or butcher paper in any light color. Lie down on the paper and have a partner trace your body’s outline in pencil. Use a dark-colored marker, crayon or paint to draw in and label the lymph nodes and lymphatic vessels located all over the body. Note how lymph nodes vary in size.

Create a life-sized drawing of the lymphatic system. Start by getting a large piece of bulletin board paper or butcher paper in any light color. Lie down on the paper and have a partner trace your body’s outline in pencil. Use a dark-colored marker, crayon or paint to draw in and label the lymph nodes and lymphatic vessels located all over the body. Note how lymph nodes vary in size.

Cervical lymph nodes

are lymph nodes found in the neck.

Palatine tonsil

the two tonsils that can be seen on the left and right sides at the back of the throat.

Thymus

a lymphoid organ situated in the neck of vertebrates that produces T cells for the immune system.

Axillary lymph nodes

a lymph node in the armpit region that drains lymph from the breast and nearby areas.

Right lymphatic duct

drains lymph from the right upper limb, right side of thorax and right halves

Spleen

is an organ found in virtually all vertebrates. Similar in structure to a large lymph node, it acts primarily as a blood filter.

Cisterna chyli

a dilated lymph channel usually opposite the first and second lumbar vertebrae and marking the beginning of the thoracic duct

Thoracic duct

is the largest lymphatic vessel in the human body.

Inguinal lymph nodes

they are located in the femoral triangle, and are grouped into superficial lymph nodes, and deep lymph nodes.

Tips for giving Presentation

Think about the aims of your presentation. Do you want to inform or entertain your audience?

Think about your audience. Do they already know anything about the topic? Why are they listening to your presentation? Choose the most suitable content for them.

Make eye contact with the audience and try to sound confident when you give your presentation. Make some notes and use these to remember what comes next, but don't just read things aloud.

Speak in a loud, clear voice. Make sure you don't speak too quickly and rush your presentation.

Useful language

Starting a presentation

• Hi, I’m Sam. Today, Maria and I are going to talk about ...

• I'd like to start by saying ...

Introducing a topic

• First, ... / Firstly, … / First of all, …

• Finally, ...

• Another thing is that ...

• It's also true that ...

• Last but not least, ...

• Let me now move on to …

• Let's talk about …

• What's more, ...

Handing over to another speaker

• Mario will now tell you about …

• OK, back to Maja.

Ending the presentation

• In conclusion, …

• To sum up, …

I can

I can’t

I can generalize and consolidate knowledge about the function of lymph

I can find the difference between blood and lymph

I can describe the lymphatic system

I can

I can’t

I can generalize and consolidate knowledge about the function of lymph

I can find the difference between blood and lymph

I can describe the lymphatic system

I can

I can’t

I can generalize and consolidate knowledge about the function of lymph

I can find the difference between blood and lymph

I can describe the lymphatic system

I can

I can’t

I can generalize and consolidate knowledge about the function of lymph

I can find the difference between blood and lymph

I can describe the lymphatic system

I can

I can’t

I can generalize and consolidate knowledge about the function of lymph

I can find the difference between blood and lymph

I can describe the lymphatic system

I can

I can’t

I can generalize and consolidate knowledge about the function of lymph

I can find the difference between blood and lymph

I can describe the lymphatic system

I can

I can’t

I can generalize and consolidate knowledge about the function of lymph

I can find the difference between blood and lymph

I can describe the lymphatic system

I can

I can’t

I can generalize and consolidate knowledge about the function of lymph

I can find the difference between blood and lymph

I can describe the lymphatic system