LCM
HCF
Tuesday, January 31, 2023
Monday, January 30, 2023
Study Notes (p21) Tier B Q4 & Q5
We have discussed the following in class. Here's a short clip on the explanation (again), which would be useful when you do your weekly homework
Question 4
Question 5
BITE SIZE
Read the instructions on the 1st column carefully before working on the task.
Thursday, January 26, 2023
Summary of Weekly Tasks [T1W4] Find details in your Google Classroom
As we are still warming up to HCF and LCM, this week's homework will focus on the preparation of one of the upcoming topics - evaluating rational numbers.
Details are already uploaded in the Google Classroom.
You will be handing in the hardcopy on next MON (31Jan) and a short video (≤ 2 min).
You will submit the video clip in the padlet below:
BITE SIZE: HCF and LCM using Index Notation
As we are still warming up to HCF and LCM, you will work on the BITE SIZE tasks (in the next post) to check on your mastery of using the INDEX NOTATION (technique) to find HCF and LCM.
HCF
LCM
These 2 clips summarises how we can find HCF and LCM of 2 or more numbers
Clip 1: Observe what are the factors 'circled' in each case
When we look for Highest common factor, technically, we are looking for the 'lowest' power.
For the Lowest common multiple, technically, we multiply the prime factors with the highest power.
Clip 2: Some of us learnt to find the HCF and LCM using the division method.
The clip attempts to show how these 2 methods (i.e. Long Division method and Index Notation Method) are related to each other - the same thinking behind, though the representation looks different.
The clip attempts to show how these 2 methods (i.e. Long Division method and Index Notation Method) are related to each other - the same thinking behind, though the representation looks different.
Wednesday, January 25, 2023
Inquiry Task 3: HCF and LCM (Summary) + BITESIZE (flowchart)
You may refer to slide 4 & 5 for the generalisation and explanation
Your BITESIZE task for today is the flowchart - complete it & have it ready for discussion in the next lesson.
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