Showing posts with label Algebra. Show all posts
Showing posts with label Algebra. Show all posts
Monday, 22 June 2020
Monday, 8 June 2020
Algebra: Application (I)
Detailed working of the 2 questions that we disucssed in the previous lesson.
In the working below, 2 methods are shown:
- Method 1: Factorisation
- Method 2: Expansion
You will find method 1 easier to manage though many of you are incline to expand the expression (Method 2). Do note Method 2 usually requires us to apply what's to be covered in Sec 2.
Tuesday, 2 June 2020
Algebra: Connecting what we know so far...
Click HERE to access padlet
[Updated after lesson]
The "Retrieval" exercise that helps us to see what we learnt in Algebra in totality.
[Updated after lesson]
The "Retrieval" exercise that helps us to see what we learnt in Algebra in totality.
Monday, 4 May 2020
Saturday, 2 May 2020
Challenging Algebra #6
Clarity is important!
Present your working clearly and systematically.
Post your answer in the Maths blog
Label the heading clearly.
Tuesday, 28 April 2020
Algebra: Equation - THINKING BEHIND: BALANCING
REFER to Study Notes: Important vocabulary... (p2)
(A) Articulating the Thinking behind the "Balancing of Equation"
Watch the PLAYLIST.
After watching clips: you should
1. be able to articulate the concept of balancing clearly; and
2. no longer use words/ phrases like "cancel", "cross multiply", "move the term over to change sign".
(B) Try the "balancing" act here
URL: https://www.mathsisfun.com/algebra/add-subtract-balance.html
(A) Articulating the Thinking behind the "Balancing of Equation"
Watch the PLAYLIST.
After watching clips: you should
1. be able to articulate the concept of balancing clearly; and
2. no longer use words/ phrases like "cancel", "cross multiply", "move the term over to change sign".
(B) Try the "balancing" act here
URL: https://www.mathsisfun.com/algebra/add-subtract-balance.html
Solving SIMPLE EQUATIONS
Read up TEXTBOOK (p128) Worked Example 1 before trying the questions assigned in the padlet.
Click HERE to access padlet.
Click HERE to access padlet.
Monday, 27 April 2020
Algebra: Factorisation - When to Use What?
(A) Identifying the method(s) [approximately 10 min]
Click HERE to access form.
In your team, discuss, for each expression, what is/ are the method(s) that you will need to apply to factorise the expression.
On your own, you will need to fill up the form and submit it by the end of the lesson.
PAIRING by index numbers:
Click HERE to access the spreadsheet
(B) Just TRY it! [approximately 8 min]
In the padlet, choose any two questions and attempt.
You and your partner should attempt different questions.
Click HERE to access padlet
Click HERE to access form.
In your team, discuss, for each expression, what is/ are the method(s) that you will need to apply to factorise the expression.
On your own, you will need to fill up the form and submit it by the end of the lesson.
PAIRING by index numbers:
- 1&2, 3&4, 5&6, 7&8, 9&10&11
- 12&13, 14&15, 16&17, 18&19, 20&21, 22&23, 24&25, 26&27, 28&29
Click HERE to access the spreadsheet
(B) Just TRY it! [approximately 8 min]
In the padlet, choose any two questions and attempt.
You and your partner should attempt different questions.
Click HERE to access padlet
Thursday, 23 April 2020
[PREVIEW] Applciation of Special Products
Note: This was originally posted in the blog on 21 April 2020
Monday, 20 April 2020
[Formative Quiz] Algebra Factorisation: Cross Method
Resource: You may watch the clips in the following playlist(s) to recap and view more examples before attempting the assigned collection:
Click HERE to access padlet
Click HERE to access padlet
Friday, 17 April 2020
Algebra: Factorisation using Special Products
Resource: Study Noes (p15)
During lesson, we went through Q8, Q7 & Q9.
I've included the step-by-step working below, with some notes for Q7 & Q9.
I hope that will help you to recap the thinking behind the steps.
Read the TIPS - let them become part of your good habit.
During lesson, we went through Q8, Q7 & Q9.
I've included the step-by-step working below, with some notes for Q7 & Q9.
I hope that will help you to recap the thinking behind the steps.
Read the TIPS - let them become part of your good habit.
Cheng Rui's answer
A little bit unclear though... hope that it is not too hard to read
Feedback:
🧐 Note that there are "+" among the terms in the numerator; similar situation for denominator.
We can only "cancel" away the common factors if all the terms in the numerator & denominator mutliply to each other. So, the "cancelling" here is not valid.
Bhargavi's Answer for Challenging Qs 5
Feedback:
🧐Think again... from the given expression to the first line of your working. Can we split the mega-fraction into individual fractions?
Challenging Qn 5 (by kiern)
Feedback: Well done! 👍👍👍
Would be better if you could insert one more line between the given expression and the first line of the working to show how the numbers are 'broken down' in the way you described at the side note.
Challenging Algebra #5
Clarity is important!
Present your working clearly and systematically.
Post your answer in the Maths blog
Label the heading clearly.
CLUE: Factorisation by common factors
CLUE: Factorisation by common factors
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