Thursday, September 11, 2025
PSLE pattern
How small is small ( Measurement )
Thursday, September 4, 2025
Wednesday, September 3, 2025
Well-intended advice for tackling TFNPTT questions (True, False, Not Possible to Tell)
Well-intended Advice:
● For True statements, circle the facts from your observation or calculation to justify
● For False statements, circle the non-facts and
○ State what the facts ought to be or
○ Cite numerical inconsistencies that doomed the statement to falsehood. (eg. when certain numbers have to be odd, or say multiples of 3 etc, as dictated by certain ratios as stated in the question, and yet are inconsistent)
● For Not Possible to Tell (NPTT) statements, circle the ambiguous word/clause and cite other possibilities to satisfy the claim of the statement.*
*Usually statements that are deemed NPTT can have more than one possibility. It is flagged out as "not possible to tell" as there is not enough information to confirm the statement to be True or False.
Tuesday, September 2, 2025
Monday, September 1, 2025
Tuesday, August 26, 2025
Why a circle is broken into 360 degrees?
Monday, August 25, 2025
Wednesday, August 20, 2025
simultaneous equations
Tuesday, August 12, 2025
Saturday, August 9, 2025
A Möbius Strip structure 🤗
Friday, August 8, 2025
Sunday, August 3, 2025
The 7 Deadly Sins of Mathematics
Saturday, August 2, 2025
Geometry Rule— Isosceles Triangle drill —- the yellow Angry Bird
Golden Ratio — pleasing proportion found in nature
Wednesday, July 30, 2025
Tuesday, July 29, 2025
Monday, July 28, 2025
Saturday, July 26, 2025
Wednesday, July 23, 2025
*My Year 2026 Clock*
2 = -(2+0+2-6)=2
3 = (20-2)/6=3
4 = -2^0*(2-6)=4
5 = -20/(2-6)=5
6 = 2*0*2+6=6
7 = (2-0)/2+6=7
8 = 2+0*2+6=8
9 = 2-0!+2+6=9
10 = 2+0+2+6=10
11 = 2+0!+2+6=11
12 = 2*0+2*6=12
Sent from my iPhone
Tuesday, July 22, 2025
Saturday, July 19, 2025
why it is mathematically impossible to tune a piano
Very interesting math animations!
Thursday, July 17, 2025
Wednesday, July 16, 2025
Tuesday, July 15, 2025
Presenting The Crown and Mount Fuji —— Appreciating triangles of same areas
Friday, July 11, 2025
Serious about school --- P6 free math exam papers ! top school papers
geometry is fascinating!— a Square Hole
On 7 Jul 2025, at 8:38 AM, Chang Cheng Liang <changchengliang@gmail.com> wrote: