P6 Area of triangle ( with overlapping part )

____

Sent from my iPhone

Exploring multiples of within the threshold of 100

Formula for Volume of a Cuboid=LxBH

Applying formula for Volume of a cuboid to find L, B or H

https://www.instagram.com/reel/C53sZ6sSE9t/?utm_source=ig_web_copy_link&igsh=MzRlODBiNWFlZA==

Appreciating the relative sizes of things on Earth— how tall are mountains, how deep are oceans, how big is the Earth

It is therapeutic seeing things in perspective.

https://www.instagram.com/reel/C_5VhqJsSo7/?utm_source=ig_web_copy_link&igsh=MzRlODBiNWFlZA==

P6 Geometry — anchoring on acting on habit of plotting in properties of special shapes

From "no numbers", numbers start to appear, just by reading, sighting, verifying and plotting in salient properties of special shapes

https://www.instagram.com/reel/DBvnq5GsxV_/?utm_source=ig_web_copy_link&igsh=MzRlODBiNWFlZA==

Order of operations — BoDMAS demonstration

https://www.instagram.com/reel/CZhSuVNqmML/

https://www.instagram.com/reel/CZhSuVNqmML/

Division of fractions —— KCF (keep, change, flip)

Follow KCF strictly and master this rudimentary skill of fraction division. 

 https://www.instagram.com/reel/CnTwKWvoRfj/?utm_source=ig_web_copy_link&igsh=MzRlODBiNWFlZA==

The 3 types of triangles to consider when finding area of triangles

- Presenting the 3 types of triangles
- Observe the bases and their corresponding perpendicular heights cutting through their apexes.
- Notice that base extensions are needed only when the shorter sides of an obtuse triangle are used as bases. A base extension allows the perpendicular height to be constructed from a line drawn from the apex.

 https://www.instagram.com/reel/C5OFlIGRngJ/?utm_source=ig_web_copy_link&igsh=MzRlODBiNWFlZA==

P5, P6 geometry

Sent from my iPhone

P4, P5 numbers, money H: area diagram

___ my solution :

Sent from my iPhone

P6 Average . H: area diagram

_______ my solution

Sent from my iPhone

Geometry (no numbers given)

Take a look! 📌 https://pin.it/5lpKX6tOL 180-(45+45/2)=112.5 Sent from my iPhone

Numbers — H: Area Diagram

____ My solution via Area Diagram

Sent from my iPhone

Goldblock Conjecture

p6 fractions —— TFNPTT

______ my solution

Sent from my iPhone

P5 p6 geometry construction

Sent from my iPhone

Re: P6 Percentage

Sent from my iPhone

On 20 Jun 2026, at 7:51 AM, CHENG LIANG CHANG <changchengliang1@icloud.com> wrote:



100 people are in a room. 

99 of them are left hand.

How малy left-handers have to leave the room so that 98% of the people in the room are left-handed?

_____

my solution:

  1 (RH) —— 2% 

98% —— 49

99-49=50 

50 left-handers have to leave the room!

P6 fraction, percentage (MGS prelims 2025)

_____

Sent from my iPhone

Prime nos which is 1 more than multiple of 4 can be written by sum of 2 square nos

p6 pie chart (raffles prelim 2025)

Sent from my iPhone

p6 average (H: area diagram)

______ my solution

Sent from my iPhone

P4, P5, P6 numbers . H: model

___ my solution

Sent from my iPhone

Sec2 (G3) : Dot diagram vs histogram

Sent from my iPhone

P6 geometry construction (henry parks prelim2025)

Sent from my iPhone

P6 geometry (henry parks prelim2025)

____ my solution

Sent from my iPhone