# [S1] Term 1 Week 0 (6-12 Jan) Updates/Debrief

SPECIAL MENTION FROM HQ (CNY HOLIDAY)

Please refer to the term calendar (subjected to changes). https://tinyurl.com/S123AnnualCalendar

There is no lesson scheduled in the week (23 – 29 Jan 2020). No lesson is billed in that week.
Lessons on 21, 22, 30 and 31 Jan is on as per scheduled.

NEW S1 “A” CLASS ON TUE 5.30pm PMC BISHAN + NEW S1 “A” CLASS ON THURS 5.30pm PMC PAYA LEBAR

Due to popular demand,
S1 Maths + Science “A” Class PMC BISHAN is scheduled to open on 4 Feb 2020 5.30pm,
S1 Maths + Science “A” Class PMC PAYA LEBAR is scheduled to open on 6 Feb 2020 5.30pm,

This is subject to minimum expression of interest. Parents and students who are interested in this class can express interest to the HQ by 26 Jan 2020.

“A” classes are suitable for IP students or students who are suitable for accelerated lessons. Bishan A Classes are recommeded for RI, RGS, CHS, SNGS students. Paya Lebar A Classes are recommended for DHS, VS, Cedar, TJ students.

Lessons on 21, 22, 30 and 31 Jan is on as per scheduled.

WHAT WE DID IN 2 HOURS

Forget about the long listing method that you learnt in Primary School to find common factors between numbers. We have learnt two new efficient ways to find Highest Common Factor (HCF) and Lowest Common Multiple of two or more numbers — 1. Ladder Division   2. Prime Factorisation.

We have also learnt to find square roots and cube roots without the use of a calculator. What’s the secret…..? Prime Factorisation!

Do visit this link to find out the quick trick to check if a number is divisible by another number (e.g. Is 123456789 divisible by 3?).

Knowing these rules will definitely help to speed up your prime factorisation process!

WHAT YOU TAKE HOME

Do remember to complete your homework (Prime Factorisation: Take Away Questions 1 to 7).

SPECIAL MENTION

We will be having a TEST on Real Numbers and Prime Factorisation in the next lesson.

Revise your notes and ace the test. See you!