[Task 1] Substitution: Can you tell What's Wrong?

Indicate your responses under comments:
(i) Identify the error(s) and describe what's wrong.
(ii) What is the correct answer?

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[Task 2] Algebra... Which is larger?

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Which is larger in magnitude?

5 + n or  5n

Explain your answer clearly with examples.
Indicate any assumptions made.

Click HERE to access the padlet

[Formative Quiz] Algebra: Substitution

Source: Workbook 1A

Read the instructions in the padlet (1st column). 

Based on the feedback (by the next lesson), you are strongly encouraged to continue to practise the rest of the questions.

REMEMBER: 

Fluency and proficiency come through hardwork that can be achieved by no one else, other than yourself.

Click HERE to access padlet.

Algebra: Equation vs Expression

(I) Algebraic Expressions vs Equations
The following are expressions

• 3x
• 5 - 2y
• p + 2q - 45
• mn

The following are equations:

• 2x = 4
• x + 8 = 20
• x² = 36
• 2x + y = 4

Can you tell the difference between an expression and an equation?

(II) Coefficients, Variables and Constants
In the following algebraic expressions:

(a) 6x

• x is a variable
• 6 is the coefficient of x
• There is no constant

(b) 2y + 5

• y is a variable
• 2 is the coefficient of y
• 5 is the constant

(c) 3m + 7n + 9

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

(d) p + 2q - 45

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

(e) 5a - 3b + 1

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

(f) x - y

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

When given an expression, are you able to pick out the variable(s), coefficient(s) and constant terms?
Click HERE to read more about these...

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Getting to know... ALGEBRA!

Let's watch these 2 clips from the Khan Academy to learn the "background" and a quick introduction of Algebra!

Concluding: Speed - Every Minute Counts!

Work out your solution (with steps clearly presented).

Click HERE to access padlet

Presenting: Simple Interest and Hire Purchase

Click HERE to access padlet

March Holidays Engagement

Dear S1-06

As we spoke in class, there will not be any written assignments for this holiday (unless you still have assignments, i.e. Percentages [HW1][HW2][HW3] not submitted).

Several things to do during the holidays:

(1) Study Notes: Rato, Rate & Speed
We are halfway through/ almost completed the unit.
Attempt the remaining pages (sub-topics) so that we go straight into the discussions, checking of understanding & answers.
A good resource is your Maths Textbook 1B - Read the examples there.

There are a number of consolidation activities that were assigned in Term 1 Week 10.
Some of you have not attempted yet.

• Ratio
• Rate (simple scenario)

Please complete them by this Friday.

(2) Preparation for next topic, Algebra
Algebra will be covered quite extensively in Seconday 1 (all the way to Factorisation).
A good way to prepare yourself for this topic is to go through the Algebra modules in SLS (as mentioned in class).

The following modules are already assigned to you in the SLS.
Take sometime to go through... Algebra offers lots of possibilities and flexibiilty... which we will discover in Term 2.

We'll have a diagnostic activity (anytime) before we start this topic - to find out the extent of readiness/ pre-requisite you have before we embark on this topic.

(3) Class Tests

• Class Test 1: Do corrections (if applicable) and file the test paper.

• [Heads-up] Class Test 2: 
• Topics: Unit 1 (Topic 3) Estimation & Application, Unit 2 Percentages, Unit 3 Ratio, Rate and Speed, Unit 4 Algebra

(4) Maths File
You should get your Maths File ready for checking by the end of Term 2 Week 1.
A list of items to be included in the content page is already posted in the Google Classroom.

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Consolidating Ratios

Click HERE

Consolidating RATE (simple scenarios)

Click HERE to access padlet