[TBL & Presentation] Percentage Change & Reverse Percentage - Application in Real World
Please make reference to the handout (in the Google Classroom).
Below are the solution presented by each group.
QUESTION A
QUESTION B
QUESTION C
QUESTION E
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[Lesson on 28 June FRI] Solving Word Problems using Equations (40min lesson)
In the previous lesson, you have been tasked to read up p14 and p15.
Follow the following lesson sequence, and be ready to pause anytime to add notes as you watch the clips.
STEP 1 (est. 3 min)
Watch & Listen to the Introduction to solving word problem using equation (& algebra)
STEP 2 (est. 3 min)
Watch and make a connection between problem solving approach and Polya's 4 stages of Poblem Solving.
STEP 3 (est. 3 min)
Read Example 5.
STEP 4 (est. 3 min)
Try Class Work 4 Question 1 if you have not done so.
Watch and listen to the clip to check your answers.
STEP 5 (est. 5 min)
Try Class Work 4 Question 2 if you have not done so.
Watch and listen to the clip to check your answers.
STEP 6 (est. 10 min)
Post a photo of your work in the Padlet - clues are in the 1st column of the Padlet.
Attempt only ONE question: Either Q3 or Q4.
[Class work] Manipulation of Equation with 2 variables
A follow-up of last lesson's class discussion on the following, which most of you had clarified when you meet classmates doing the same question. We also went through the questions briefly at the end of the lesson.
The clip shows how the EXAMPLE is solved:
Below are the links to questions assigned.
Watch the clips to check your answers; do jot down any notes that you are still not clear. You may post it under the Youtube comment.
- Question 1 S1 Linear Equations: Manipulation of Equation with 2 variables (Q1)
- Question 2 S1 Linear Equations: Manipulation of Equation with 2 variables (Q2)
- Question 3 S1 Linear Equations: Manipulation of Equation with 2 variables (Q3)
- Question 4 S1 Linear Equations: Manipulation of Equation with 2 variables (Q4)
- Question 5 S1 Linear Equations: Manipulation of Equation with 2 variables (Q5)
[Class Discussion] Solving Simple Linear Equations involving fractions
During lesson, we discussed the following:
For those who would like to recap the solving of equations, you are strongly encouraged to watch the clips in this playlist:
[Class Discussion] Solving Simple Linear Equations
Here's the suggested solution - as discussed in class
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Here's the worked solution, as presented in class:
STUDY NOTES (p12): Application of Special Products
Posting them here for your reference.
POSTED on 13 MAY - after class discussion
Class Practice (III) Our discussion on 24 APRIL
During the lesson, we looked at how (a) and (b) can be simplified using single fraction.
We learnt that while the approach could be different, both methods give the same answers (though they look different). We can also show how one answer is equivalent to the other.
For (c), the approach is similar to the following arithmetic example. When it is a product, we can expand the three factors in any order.
- 2 x 3 x 5 = (2 x 3) x 5 OR 2 x (3 x 5) OR (2 x 5) x 3
[Wrapping up] Mensuration - Word Problems (Pyramid, Sphere, Composite figures)
We discussed the following questions during lessons.
Below are the suggested solution, showing how the working should be presented:
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