It's been a busy week and before I recap the events and work for the week, lets' go through the answers for the questions given for Science.
Similarity: Both take in oxygen and give out carbon dioxide.
Difference: Man breathes in through lungs while fish breathes in through gills.
Explanation: The function of the respiratory system is to take in oxygen for the body. Man live on land and breathe in oxygen and air. They make use of lungs to obtain oxygen from the air. Fish live in water. They use gills to absorb oxygen dissolved in the water.
(A) The limewater in Jar Q would become more chalky or milky than the limewater in Jar P.
(B) Air exhaled by the hamster passes through the tube into Jar Q and it contains more carbon dioxide than the air passing through Jar P from the surrounding air.
Explanation: Limewater is used to test for the presence of carbon dioxide. In the presence of carbon dioxide, limewater turns milky or chalky. *Note that limewater is not the same as lime juice. Do not mix them up. Exhaled air contains more carbon dioxide than the air in Jar P which is air drawn from the surrounding air. Thus, the limewater in Jar Q turns more chalky than that in P.
[Science for the week]
We concluded on the topic of Respiratory system of animals and plants. Note the parts of the respiratory systems of different animals and for plants, it is simply the stomata where gases exchange take place. Stomata are usually found on the underside of leaves to prevent water from evaporating.
We had two practice worksheets on the plant transport system.
Today, we started a brief introduction on the Human Circulatory System. Video for the topic can be found here.
The circulatory system is an extensive body system that is composed of three main parts--the heart, blood and blood vessels--which function together to transport nutrients, oxygen and water to cells and remove waste products such as carbon dioxide from the body.
Heart
The heart is the main organ of the circulatory system. The heart is the driving force responsible for pumping blood throughout the rest of the circulatory system. Without proper heart function, the other components involved cannot function as they should.
Blood
The heart pumps blood, the medium in which nutrients, water and oxygen are carried to the cells of the body.
Blood Vessels
There are three main types of blood vessels that each has a different function. Arteries are responsible for carrying blood away from the heart, veins carry blood back to the heart, and capillaries connect arteries and veins to one another. The blood vessels are the part of the circulatory system that resembles a highway system.
Blood Flow
Blood flow throughout the body is a continuous cycle that is directed by the heart. Blood is pumped from the left side of the heart into the arteries, which carry blood away from the heart. This blood contains oxygen and food for the body's cells. Oxygen and nutrients are delivered to the cells through the capillaries. The de-oxygenated blood travels back to the heart by way of veins, and the entire process begins again.
Keywords, Keywords, Keywords! Please remember to use the keywords for science when you are writing your answer.
Light is a worrying topic as we did the recap worksheet. Please go and revise through your past year topics.
[English for the week]
We have now finished unit 10 and 11. The composition for Unit 9 was not well done. Please note the following when you are writing your composition:
- 4 Paragraphs at least.
- For picture compositions, make sure you include all the characters.
- Add FEELINGS for the characters instead of just describing.
- Elaborate and be specific.
- Formal language is needed for your writing. No short forms like 'don't', 'won't', etc.
- Stick to simple sentences if you are not confident in your language.
- Tenses should be in the past.
- Punctuation is important. Remember to have your full stops. A simple sentence should have more than two phrases joined together.
Past (adverb) - beyond
Pass (verb) - the act of going past / through a location
When a verb is used after these words 'would, will, could, can, should, shall, may, might', the verb should always be in the base form (present tense, plural form).
Today, we were introduced to the format of Letter of Complaint for situational writing. Please take note of the structure.
For situational writing, please note:
- Your language should be formal when it comes to formal memo, email, note, letter or report writing.
- Take note of your role and target audience (who you are writing to)
- Write down the purpose in the first sentence.
- Formal situational writing does not start with "How are you?" so skip that portion.
- Be straight and clear to the point. Do not add in your own details unless you are told to do so. This is not composition writing.
Situational writing is a key life skill. In the future, when you are writing letters, emails, reports or complaint letters, these skills will be crucial. See it as a skill rather than something you simply just to go through. Then, you will find learning meaningful.
[Homework]
Composition for Unit 10 is to be passed up next Monday. Please complete on time. We have only 2 more weeks to go before you sit for your exams.
[Note for Parents]
Dear parents,
I am going to update about the progress of the students' academic work. We are left with one more unit for English which I will finish by next week and then concentrate on oral and revision papers.
For science, I have started on the last topic and following that, it is revision papers all the way.
Filing has been done this week so it is a steady progress for the students.
Don't worry. You have my word that your child is safely progressing in their work. The syllabus will be covered in time and with quality of course. Whatever is important, I will elaborate to the students and get them to take down in their papers or note book.
Files will be given back in week 5 for the pupils to revise, together with their workbooks.
Get them to go through the files and practise the questions again for familiarization.
One of the greatest weakness that I have observed after these 9 months is the issue of the kids easily forgetting the concepts and skills. They tend to make the same mistake again, as such repetition is needed. Don't worry about exposing them to tons and tons of questions. Instead, focus on having them redo and repeat questions they have done or similar questions to get them fully familiarized and having memorised what the key skills and concepts are. They are lacking in this aspect.
Lets' work hard together for their final lap!
[Class Issues]
As stated in the classroom, these few weeks have not been exactly pleasant. A week of ups and downs. You were being praised by certain teachers but also complained by certain teachers. Consistency is needed. I don't wish to be shouting at you and having to remind you of how you should behave. It's the last lap to the end of the year. You must work hard and stay disciplined.
A disciplined students know what to do at the right time and with that, he is able to excel in their studies with hard work and self control. It is easy to say but difficult to do. You need all your patience and self control at this period of time now. There is no more time to waste.
The subject combinations you will get next year is now dependent on your results and fixed by the school for next year. It is no more chosen by your own or your parents choice. For some of you, you are greatly in risk of dropping to take foundation subjects if you do not pull up from your U grade, as such you know what you have to do to make things right.
I know some of you are really weak and disinterested in certain subjects. The key here is not to lose heart and give up. Once you have given up, there is no more hope. Hope keeps you going. I don't believe that we will fail forever. There will come a time when passes can be achieved, so keep going.
I have told some of you here that the best choice now is to pass all subjects if you can. If not, focus on pulling up your weakest subject(s) to 40 - 50 and do well for the rest of the subjects.
Happy Mid-Autumn Festival!
See you if you will be attending the festival in school tomorrow.
Yours sincerely,
Mr Nelson Ong
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