Things to note on 31 Aug 2015

Things to note on 31st August 2015

There is no homework today. Please drink lots of water and rest well. There is Swimsafer tomorrow.
Please remember to bring all the files, Casco, Math WB (4B) and Fan-math back to school tomorrow.

ELDDS members and Botanic Gardens Trip

Attention to ELDDS members in 4 Exemplary,

I have checked with the teacher-in- charge and she has requested that all of you attend ELDDS training on Monday. Thus please ask your parents to sign the second consent form and return to me on Monday. You will going to Botanic Gardens with other classes in Term 4.

Other notes on Science - Light

Uses of reflection

Reflectors on bicycles reflect light from the vehicles.In this way, drivers are able to see the cyclists on the roads. Reflectors can also be found on jogging shoes.

A mirror reflects light. Mirror can be arranged to create a path for light to help us see things that are out of our sight range. A mirror is not a source of light as it does not give off light. We can see our reflection in the mirror because the light from our surroundings falls on our body and is reflected on
to the mirror. The mirror with its smooth surface then reflects the light into our eyes.

The amount of light passing through a material or object can be measured using  light sensor connected to a datalogger.

Notes for Science topic: Light

Light

 

1) Light is a form of energy.
2) Light must be present for us to see. Without light, we cannot see. Thus we cannot see in the dark.
3) Objects that give off light are known as sources of light. There are two types, natural and artificial sources of light.
4) The Sun is our main source of light during the day.
5) The moon is not a source of light.
6) The moon looks bright at night because it reflects light from the Sun.
7) We can see sources of light because they give off light.
8) We can see objects that do not give off light when there is light shining on them. The light is then reflected from the object and enters our eyes.
9) We can see through an object clearly if it allows most of the light to pass through it. It is a transparent material.
10) We cannot see an object clearly if it allows only some light to pass through it. It is a translucent material.
11) We cannot see through an object at all if it does not allow any light to pass through it. It is known as an opaque material.
12) A shadow is formed when light is blocked by an opaque object.

 

SHADOW

- Refer to concept map on light and shadows
(I) How to make a shadow bigger
(II) How to make a shadow smaller
(III) What is sharpness?
(IV) What affects the shapes of shadows?

When drawing light paths, please use rulers and make sure the light paths touch the objects and eyes and when necessary they meet at the same point.

For shadows, pls colour the shadows with pencil.

Please remember the KEY words BIG & BLUR and SMALL & SHARP for shadows.

Please refer to pages 26 and 27 of your textbook for a summary of both chapters on Light and Heat.

Answers for Science Process Skills

Worksheet 7

2. If he switches the lights on, the light will be reflected from his body to someone's eyes, thus people will know that someone is inside.

3. As opaque objects do not allow any light to pass through, people cannot see through the opaque mask, so they cannot identify him.

4. His vision will not improve. Sunglasses allow less light to pass through and into his eyes.

5. A light sensor was installed in the toy car.

Things to note on 26 August 2015

Please revise your work for Mother Tongue examination tomorrow and rest early.

Do remember to bring your Science revision paper given out today to go through the answers tomorrow.

Things to note on 25 August 2015

Things to note on 25 August 2015

There is no homework today.

Today I went through a summary of the topics and the key areas that they need to take note of when attempting the Math examination tomorrow.

Whole numbers
(i) Pupils need to read the questions carefully especially when the questions uses words like "___ tens", "____ hundreds" in their question.
(ii) Pupils need to revise the key terms like place value, value, "stands for".
(iii) Pupils need to read questions carefully especially questions stating "the missing number number or missing digit is".
(iv) They must be familiar with terms like product, quotient, remainders.
(v) We went through how to derive the largest possible number and smallest possible number when the number is rounded off to the nearest tens, hundreds or thousands etc.

Time
Pupils must remember to draw timelines for questions relating to time.
For 24 hour clock format, there are only 4 digits and 12 p.m. is 1200 and 12 a.m. is 0000 or 2400.
Pupils must remember not to add time with duration.

Decimals
Pupils must be familiar with tenths, hundredths and thousandths.
Pupils must remember how to convert fractions to decimals and vice versa.
They must know how to list the values on number lines.

Fractions
Pupils must remember to leave answers for fractions in simplest form unless otherwise stated.
They must decide if the problem sum is a plain measurement questions or fraction of a set question.

Heuristics questions (Fan-math)
Pupils have been advised to go through the questions in Fan-math especially the questions on  model drawing (transfer questions).

They have been asked to draw models especially if the question requires them to compare among three or more objects, if the questions states "twice / three times as many as etc" and for questions which states "sharing or after Person X gives XX to Person Y". Reason being is that by drawing model, the problem should become clearer to solve. Without models, the pupils tend to miss out on certain units to be labelled.

There are other topics like Angles, Squares and Rectangle etc (refer to CA2 schedule) to be tested and as mentioned, they were briefed on what to take note on all the topics today.

Most importantly, the pupils need to read all questions carefully and remember to show all equations and workings. I have mentioned to them that for Math, there really is no shortcut to achieving good marks in this subject. Accuracy is most important.

Have a good rest today and remember to bring all necessary Mathematical instruments/ equipment to school.  :O)

Things to note - 24 August 2015

Things to note on 24 August 2015

(1) There is no homework today.

(2) Pupils, please revise Stellar Learning Sheets (from Term 1 to Term 3) and learn the vocabulry             used in the passages.

      Do go through all worksheets in the English files.

      Do make use of MConline and go through the Grammar rules in English Grammar Primary 3/4.

      Do revise the rules used in synthesis.

      Do go through Casco Pgs 308 - 344.

      You may wish to attempt some of the Grammar and Vocabulary MCQ Practices in Casco at home       and self- mark.

When attempting the English paper, please ensure you check through the spelling of the words especially if the words are already present in the given sentences and passage. Pay extra attention to the questions and read them carefully.

In class today, we have gone through the vocabulary used in the Stellar passages in Term 3, subject- verb agreement, synthesis and how to answer comprehension questions. Remember to write neatly and show all necessary punctuation. Please write your alphabets clearly. Lastly, remember to check through your paper carefully and with focus. 

If you are feeling unwell on the days when you have the CAs (continual assessments), please ensure you are covered by a medical certificate. 

Do have a early rest tonight! :O) And yes, please pack your pencil case and ensure you bring all necessary stationery. :P

     

Homework on 19 Aug 2015

(1) EL revision paper 5
(2) Math Revision paper

Things to note:
There is no school on Thursday and Friday for P4 pupils.

Homework on 18 Aug 2015

(1) Science revision paper 2
(2) Casco Vocab MCQ Test 7 and 8 (can self mark at home)

Video on Light- Shadows

Dear all,

Please watch the following Youtube video to reinforce concepts learnt in the topic of Light- Shadows.

https://www.youtube.com/watch?v=2nwK78F_4eA

(Science - Light - Shadow - Advanced - English)

Homework on 17 Aug 2015

(1) Math Revision Paper 3
(2) Fan-math corrections

Homework on 14 Aug 2015

(1) Science revision paper
(2) English revision paper
(3) 4 Math questions

Homework on 13 Aug 2015

(1) Corrections for Math Revision Papers (Pls bring back to class tomorrow)
(2) 4 Science Worksheets

Homework on 12 Aug 2015

1) Science Process Skills pgs 4-8

Class photo-taking on 12 Aug 2015

Please note that there is class photo-taking tomorrow. Pupils are to turn up in school inform tomorrow. For prefects, please wear your tie and badge

If there is PE lesson tomorrow, please place your PE tshirt in your bag.

Homework on 11 Aug 2015

(1) Math revision Paper T3R2 (Complete sections B and C)
2) Science WS on Fair test
3) Parents pls sign on Math Review 5

Things to note

Fair test
Independent variable is the factor or variable that we change in an experiment to test if they can affect the results of the experiment.

Dependent variable is the variable that we usually measure or it is the result that we look at the end of the experiment.

Usually for fair test, we will only change one independent variable. All other variables should remain the same.

For example of the aim of the experiment is to test if the type of soil affect the growth of the plant.

The only factor that changes (independent variable) is the type of soil. All other factors like amount of soil, type of plant etc must remain the same.
The results that we measure in both experiments is the growth of the plant and this is known as the dependent variable.

Data analysis (Graphs)

Please study the 2 axes of the graph carefully. Do draw dotted straight lines to read off the values as represented by the graphs. Remember to state units when necessary.

Answers for Fair Test WS
1) Presence of water(independent variable) and if seeds will germinate (dependent variable)
2) Amount of light (independent variable) and survival of fishes (dependent variable)
3) Change in temperature (independent variable) and rate of evaporation (dependent variable)
4) Presence of fertiliser (independent variable) and growth of flowering plant (dependent variable)
5) Material of parachute (independent variable) and distance the parachut takes to fall to the ground(dependent variable)
6) Presence of sunlight (independent variable) and growth of plant( dependent variable)
7) Surface area of leaves (independent variable) and amount of oxygen given out during photosynthesis (dependent variable)
8) Materials (independent variable) and Amount of light that passes through (dependent variable)
9) Type of soil (independent variable) and growth of plant (dependent variable)
10) Change in weights (independent variable) and how much an elastic band stretches
11) Height of ramp is the independent variable and the distance travelled by the car (independent variable). Only height of ramp can change.

Variable 1 and 2: Any 2 as stated below-
Length of ramp, material of ramp, size of toy car, type of toy car, material of toy car.

12) Variables that must be kept constant: Thickness of filter, material of filter, type of water plant

Independent variable for this experiment is the colour of filter and dependent variable is the number of bubbles given out.

13) *do not do the question on dissolved carbon dioxide

14) Variables that should be kept constant: Amount of fertiliser and type of soil.

National Day celebrations

Dear all,

Here's wishing you a happy National Day. Do remember to revise for your upcoming Science Process Skills test (Data Graph and Fair Test). For Fair test, do go through the worksheets given in Semester 1.

Here are some pictures on today's celebration.

Homework on 5 August 2015

1) Corrections for Decimals 2

Dear parents, please sign it.

2) 3 Science WS- 2 Mental Science on Light and 1 Review Exercise on Light

All work to be handed in on Tuesday (including Decimals 2).

Things to note:

Answers for Science WS on Graphs (Process Skills)

Question 8. 

(a) The temperature of the water is decreasing.

(b) Ah Seng added some tap water/ cold water or ice into boiling water.

Question 9:

(i) 6g per m2

(ii) When more than 6g of fertiliser was added for every m2, the weight of the vegetables collected decreased.

Question 10:

(a) Curve X. The mass of the seed leaf decreases as the stored food is used up for germination.

(b) The seed will still grow as the seed leaf would provide food for the germination of seed.

(c) The seedling made its own food as from Day 8 onwards as the seedling would have developed green leaves.

Here is a picture on the pupils constructing Lego- Building SG:

Here's wishing all of you a Happy National Day and see you all tomorrow!

Homework on 4 Aug 2015

1) EL revision paper T3R3

Things to note:

1)The pupils will be taking a Math Performance task this week. They have been informed since Monday to revise the following topics, Angles, Time, Perpendicular and Parallel Lines and Area and Perimeter. There is no weighting for this test.
2) Today, the pupils were given 3 quizzes on Math (Fractions and Decimals).

Commonly made errors:
(I) Did not read questions properly especially questions that requested them to round off their answers to nearest tenths, hundredths or etc. Thus the pupils detived the correct answers based on algorithm but they did not round off their answers.
(II) Some pupils are not able to convert "words" to decimals accurately. For example, 12 tenths= 1.2
(III) Some pupils are having problems understanding word problems involving fractions. As explained to them, they must decide if the question is purely a normal "measurement" question or "fraction of a set" question.

Homework on 3 August 2015

1) Math review 5( for pupils who have not completed it in class)
2) EL learning sheet ls 1.1 and 1.2 (What is a tsunami?)
3) Parents, pls sign Decimals (1).

Math Olympiad training on 3 Aug 2015

Pupils in Math Olympiad enrichment, please take note that there is Math Olympiad training tomorrow from 2p.m. to 4 p.m.