**Instructions**

This topic is on Rate, Ratio and Percentage.

Attempt the task on papers.

Attempt the task on papers.

This topic is on Rate, Ratio and Percentage.

Attempt the task on papers.

Attempt the task on papers.

Instructions

Eunice is driving from Singapore to Malacca, Malaysia.

Eunice is driving from Singapore to Malacca, Malaysia. She leaves Singapore Woodlands checkpoint at 08 30 and travels the first 60 km of the journey at an average speed of 25 m/s and the next 120 km at an average speed of 80 km/h. She stops at Muar for a 30-minute break before continuing the last part of her journey at an average speed of 90 km/h in 35 minutes.

(a) Convert 25 m/s to km/h. [1]

(b) What time does she reach Muar? Give time in the 24h notation. [3]

(c) Find the average speed for its entire journey, giving your answer in km/h. [3]

Attempt the task on papers provided.

Remember to label the parts and show your working clearly. Presentation must be clear.

Post your group's answer in the Padlet below. Remember to indicate the group name and the members who work on the task.

Post your group's answer in the Padlet below. Remember to indicate the group name and the members who work on the task.

Eunice is driving from Singapore to Malacca, Malaysia.

Eunice is driving from Singapore to Malacca, Malaysia. She leaves Singapore Woodlands checkpoint at 08 30 and travels the first 60 km of the journey at an average speed of 25 m/s and the next 120 km at an average speed of 80 km/h. She stops at Muar for a 30-minute break before continuing the last part of her journey at an average speed of 90 km/h in 35 minutes.

(a) Convert 25 m/s to km/h. [1]

(b) What time does she reach Muar? Give time in the 24h notation. [3]

(c) Find the average speed for its entire journey, giving your answer in km/h. [3]

Instructions

At a height of 165m, Singapore Flyer is one of the world’s largest Giant Observation Wheel and also one of Asia’s biggest tourist attractions.

*Sources*:

Video clip: Youtube https://www.youtube.com/watch?v=bt-9iRriklI

Information: http://www.singaporeflyer.com/about-us/fun-facts-about-the-flyer/

Attempt the task on writing papers.

Remember to label the parts and show your working clearly. Presentation must be clear.

Post your group's answer in the Padlet below. Remember to indicate the group name and the members who work on the task.

Post your group's answer in the Padlet below. Remember to indicate the group name and the members who work on the task.

At a height of 165m, Singapore Flyer is one of the world’s largest Giant Observation Wheel and also one of Asia’s biggest tourist attractions.

The diameter of the Singapore Flyer measures at 150 metres, and it travels at an average speed of 0.24 metres per seconds.

(a) Express its average speed in km/h

(b) How long (in minutes) does it take for the flyer to complete one revolution?

(c) The company is promoting the "dining capsule" concept, inviting people to dine in the capsule. If the meal lasts for one hour, how many revolutions would the diner have gone through for his meal?

__Additional
information__

Circumference of Circle = 2 π r where r is the radius and use π = 3.142

Video clip: Youtube https://www.youtube.com/watch?v=bt-9iRriklI

Information: http://www.singaporeflyer.com/about-us/fun-facts-about-the-flyer/

Instructions

Refer to the Handout and attempt the task on writing papers.

Remember to label the parts and show your working clearly. Presentation must be clear.

Post your group's answer in the Padlet below. Remember to indicate the group name and the members who work on the task.

By mass, Yellow Gold 18K is made up of 75% of Gold (Au), 15% of Silver (Ag) and the remainder is made up of Copper (Cu), by mass.

(a) Find, by mass, Au : Ag : Cu, giving your answer in the simplest form. [1]

(b) A goldsmith is tasked to make a piece of jewellery with Yellow Gold 18K. With 2.25g of Silver, how much of gold and copper would be needed to form the alloy? [2]

(c) If this piece of jewellery is to be melted into liquid alloy

(i) Find is the volume of the alloy. [3]

(ii) Compare the volume with that of a 15g of pure 24 carat gold, which has a greater volume – Yellow Gold 18K or 24 carat gold? [2]

Given that the density of Gold is 19.3 g/cm3, Silver is 10.49 g/cm3 and Copper is 8.92 g/cm3.

Source: http://www.gold.org/jewellery/about-gold-jewellery

Watch the following clip for background info that would help you understand the context of the question better:

Mass, volume and density are related by an equation:**density = mass ÷ volume**

Refer to the Handout and attempt the task on writing papers.

Remember to label the parts and show your working clearly. Presentation must be clear.

Post your group's answer in the Padlet below. Remember to indicate the group name and the members who work on the task.

By mass, Yellow Gold 18K is made up of 75% of Gold (Au), 15% of Silver (Ag) and the remainder is made up of Copper (Cu), by mass.

(a) Find, by mass, Au : Ag : Cu, giving your answer in the simplest form. [1]

(b) A goldsmith is tasked to make a piece of jewellery with Yellow Gold 18K. With 2.25g of Silver, how much of gold and copper would be needed to form the alloy? [2]

(c) If this piece of jewellery is to be melted into liquid alloy

(i) Find is the volume of the alloy. [3]

(ii) Compare the volume with that of a 15g of pure 24 carat gold, which has a greater volume – Yellow Gold 18K or 24 carat gold? [2]

Given that the density of Gold is 19.3 g/cm3, Silver is 10.49 g/cm3 and Copper is 8.92 g/cm3.

Source: http://www.gold.org/jewellery/about-gold-jewellery

Watch the following clip for background info that would help you understand the context of the question better:

Mass, volume and density are related by an equation:

Instructions

Refer to the Handout and attempt the task on writing papers.

Remember to label the parts and show your working clearly. Presentation must be clear.

Post your group's answer in the Padlet below. Remember to indicate the group name and the members who work on the task.

Ms Lee, the Sports & Wellness teacher, is going to conduct a fresh juice making class in the “Eat Healthy, Live Healthy” week. She is going to teach participants how to make fresh lemonade, with reference to a recipe available at https://www.sunkist.com/recipes/fresh-lemonade/

Find out, from the website, the amount of ingredients that Ms Lee needs to prepare for each participant, enough to make the beverage for**4 servings**.

(a) Express the ratio of lemon juice, water and sugar in its simplest form. [2]

(b) If only 10 cups of lemon juice are available, what is the maximum number of participants that Ms Lee can have for the workshop if she needs to ensure every participant has the same amount of ingredients for the workshop? [1]

(c) Based on the constraint she has in (b), how much water and sugar does she need for her workshop? [2]

You may check your answer at the website.

(d) If Ms Lee wants to prepare enough lemonade for all participants (not including herself), find out from the website how much of each type of ingredients she needs. [1]

Source: https://www.sunkist.com/recipes/fresh-lemonade/

Refer to the Handout and attempt the task on writing papers.

Remember to label the parts and show your working clearly. Presentation must be clear.

Post your group's answer in the Padlet below. Remember to indicate the group name and the members who work on the task.

Ms Lee, the Sports & Wellness teacher, is going to conduct a fresh juice making class in the “Eat Healthy, Live Healthy” week. She is going to teach participants how to make fresh lemonade, with reference to a recipe available at https://www.sunkist.com/recipes/fresh-lemonade/

Find out, from the website, the amount of ingredients that Ms Lee needs to prepare for each participant, enough to make the beverage for

(a) Express the ratio of lemon juice, water and sugar in its simplest form. [2]

(b) If only 10 cups of lemon juice are available, what is the maximum number of participants that Ms Lee can have for the workshop if she needs to ensure every participant has the same amount of ingredients for the workshop? [1]

(c) Based on the constraint she has in (b), how much water and sugar does she need for her workshop? [2]

You may check your answer at the website.

(d) If Ms Lee wants to prepare enough lemonade for all participants (not including herself), find out from the website how much of each type of ingredients she needs. [1]

Source: https://www.sunkist.com/recipes/fresh-lemonade/

Khan academy

**Congratulation for those who have embarked on this journey.**

Use this on-line platform for the following:

.1 building competency especially in Arithmetic and Algebra

.2 Self directed learning - you may watch the video countless times for greater scrutiny, practice the questions etc

.3 Do not just focus on the elementary, loom at the tougher questions.

.4 Use this to supplement your learning and understanding in school.

I suggest you focus MORE on algebra especially expansion and factorisation. Then you may progress to equation and word problems.

Use this on-line platform for the following:

.1 building competency especially in Arithmetic and Algebra

.2 Self directed learning - you may watch the video countless times for greater scrutiny, practice the questions etc

.3 Do not just focus on the elementary, loom at the tougher questions.

.4 Use this to supplement your learning and understanding in school.

I suggest you focus MORE on algebra especially expansion and factorisation. Then you may progress to equation and word problems.

Topic on Factorisation - do a search to be led into this page.

Scorer so Far

[the time given serves as a guide in your time management]

Activity: Algebra (24 February)

due 31 March 2017 (Friday)

- This was given
__before the March holiday__and you have been tasked to complete the e-note especially the ones highlighted in yellow.

- Complete the assignments / practices in your NOTEBOOK.

- [25 minutes] to review work given before the March holiday and highlight any difficulties encountered to teacher via email or face to face.

due 29 March 2017 (Wednesday)

Go to Secondary 2 Express - then - Algebra - then - Factorisation of Algebraic Expressions - then - Factorisation by Grouping as shown and complete the next 2 questions in your NOTEBOOK.

Go to Secondary 2 Express - then - Algebra - then - Quadratic Equations and Graphs - then - Factorisation of Quadratic Expressions

focus on the Cross method

go through the concept and attempt the **ACE Learning Quiz** given to you.

Duration [1-1.5 hours pending intensity of practise]

due 27 March 2017 (Monday)

Please complete your correction and the additional piece on Self Assessment.

Please complete your correction and the additional piece on Self Assessment.

Ask your parents to acknowledge and sign the paper.

Return the paper to me on THURSDAY, 30 March 2017.

due 27 March 2017 (Monday)

A one-page quiz has been given on Friday. Topic is on Algebra - Expansion.

Suggest you revise before attempting the paper on your own. If possible do time trial. It should not take you more than 30 Minutes.

Marks will be recorded and non submission will be given 0 and a separate test.

Duration [ 30 minutes max]

**5. Assignment 4.4 and 4.6**

due 29 March 2017 (Wednesday)

due 29 March 2017 (Wednesday)

Review the corrections for the above assignments that were returned on Friday.

Assignment 4.4

Students must Redo the entire assignment if you score less than 60%

Assignment 4.6

students must attempt second page of assignment and show complete working according to the ACE Learning.

**Start filing your work - due for checking in April.**

Assignment 4.4

Students must Redo the entire assignment if you score less than 60%

Assignment 4.6

students must attempt second page of assignment and show complete working according to the ACE Learning.

Hi all,

Hope you are enjoying your holiday.

I have set a challenge for the class. You task is to get as may points as possible for this challenge and you will reap the well deserved outcome for that (this is a surprise!).

**Step 1**

Accept the invitation to join Khan Academy. You have been assigned a class S1-07.

**Step 2**

Topics to focus on for the Challenge at the moment.

Embark on your Algebra challenge

there will be 3 components

Explore

Practice

Mission

**Step 3**

Start will the basic - you may watch the video and attempt the simple questions first.

Progress to the practice once you are more familiar.

**Step 4**

Every time you practice points will be awarded and I will be given a copy of your activities.

I will also be able to access topics that you find to be a challenge and assist you accordingly.

You may proceed or expedite your learning if you have mastered the topic eg find it very easy and would like to move to the next stage.

Hope you are enjoying your holiday.

I have set a challenge for the class. You task is to get as may points as possible for this challenge and you will reap the well deserved outcome for that (this is a surprise!).

Accept the invitation to join Khan Academy. You have been assigned a class S1-07.

Topics to focus on for the Challenge at the moment.

Embark on your Algebra challenge

there will be 3 components

Explore

Practice

Mission

Start will the basic - you may watch the video and attempt the simple questions first.

Progress to the practice once you are more familiar.

Every time you practice points will be awarded and I will be given a copy of your activities.

I will also be able to access topics that you find to be a challenge and assist you accordingly.

You may proceed or expedite your learning if you have mastered the topic eg find it very easy and would like to move to the next stage.

The Challenge Begins!

=====================================================================

Refer to the

Group number:

Group members

Important to show the full working.

Focus on the technique of Expansion and Distributive Law.

On the

"Expanding" means **removing the** ( ) ... but we have to do it the right way!

( ) are called "parentheses" or "brackets"

Whatever is inside the ( ) needs to be treated as a "package".

So when multiplying: multiply by everything inside the "package".

source: Math is Fun

click **HERE** for more illustrations

[the time given serves as a guide in your time management]

Activity: ALGEBRA; RATE, RATIO & % (17 February)

**ALGEBRA**- Part 1: Watch the videos in this BLOG (04 From Arithmetic to Algebra) [30 minutes]
- Addition & Subtraction
- Multiplication
- Division
- Simple Algebraic Manipulation
- Part 2: Complete the following in your Math note [1 hour]
- link to Mr Johari's e-note
- 4.2.1 Algebraic Conventions
- 4.3.1 Coefficient, Constant & Terms
- 4.3.2 Addition and Subtraction of Like and Unlike Algebraic Terms
- Four Operations of Like and Unlike Algebraic Terms involving Fractions
- Part 3: ACE learning MCQ Quiz - 2017 (S1) Algebra - Simple Operations [1]

**Update on Previous Tasks assigned [Percentage, Rate, Ratio]**- Google Classroom
- Percentage - 1 question (assigned last week due 18 Feb) [20 minutes]
- Percentage, rate, ratio - 3 questions (due 21 Feb) [20 minutes]
- ACE Learning
- S1 (Self Directed Learning) SDL Quiz:1-6 - MCQ (1 week to complete)

=====================================================================

On the

- What is Algebra?
- What is its origin?
- What are the applications of Algebra?

STAGE 2: TABLE GROUP Work [5 minutes]

=====================================================================

Within your table find the meaning of Nomenclature in Mathematics.

Post as comment:

include Class. Group members

(2) Nomenclature: S1-0x name name name

Exercise 1

- What is the answer?
- How do you get the answer?
- Is there a better way to present the question / working?

Exercise 2: Expression versus Equation

Exercise 3: Parts of an equation

link: click HERE

STAGE 3: TABLE GROUP Work [5 minutes]

=====================================================================

On the

Post

(1) Like terms

(2) Unlike terms

Note on extension of Operations for 'Like and 'Unlike' Terms

link: click HERE

STAGE 4: INDIVIDUAL Work [15 minutes]

=====================================================================

**Algebraic Operations**

On the ACE Learning. Complete the following Quiz Individually.

STAGE 5: HOME Work [15 minutes]

=====================================================================

**AlGEBRA - EXPANDING**

**click HERE for reference**

Note on extension of Operations for 'Like and 'Unlike' Terms

link: click HERE

STAGE 4: INDIVIDUAL Work [15 minutes]

=====================================================================

On the ACE Learning. Complete the following Quiz Individually.

STAGE 5: HOME Work [15 minutes]

=====================================================================

=====================================================================

The

This is a review of past knowledge and is a self directed series of activity.

Proposed learning:

- Stage 1: Go to ACE Learning and browse through the course that you intend to cover.
- Stage 2: Go through the lesson note (video) and activities if need be to study and check on your understanding
- Stage 3: Attempt the MCQ Quiz set by the teacher.
- Stage 4: Review your results and check on your errors if need be either you go through the lesson again or seek clarification from me.

(pace your self - do not have to finish in one day, understanding the process is key)

SDL (Self Directed Learning)

Followup to the following activity:

In the **comment **section post, make a stand on whether the amount of plant food the gardeners use each week is (1) a variable or (2) a constant, and JUSTIFY your answer. There is no right or wrong however it depends largely on the justification.

The following are

**3***x***5 - 2***y**p*+ 2*q*- 45**mn**

**2***x*= 4*x*+ 8 = 20*x*² = 36**2***x*+*y*= 4

In the following algebraic expressions:

(a) 6

*x*is a variable- 6 is the coefficient of
*x* - There is no constant

*y*is a variable- 2 is the coefficient of
*y* - 5 is the constant

*m*and*n*are variables- 3 and 7 are coefficients of
*m*and*n*respectively - 9 is the constant

*p*and*q*are variables- 1 and 2 are coefficients of
*p*and*q*respectively - -45 is the constant

*a*and*b*are variables- 5 and -3 are coefficients of
*a*and*b*respectively - 1 is the constant

*x*and*y*are variables- 1 and -1 are coefficients of
*x*and*y*respectively - There is no constant

Click HERE to read more about these...

[the time given serves as a guide in your time management]

Activity: Estimation (10 February)

- Complete the
**Unit 3:**Estimation and Approximation **Lesson 3:**Round and Truncation Errors- [25 minutes]

[the time given serves as a guide in your time management]

Activity: 3 significant Figures

- Remember to watch the 3 video on significant figures (click HERE) [10 minutes]
- Complete the
**Unit 3:**Estimation and Approximation**Lesson 2:**Significant Figures [15 minutes]

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