Hello! I am Mr Edmond So. Always hope I can help students learn Mathematics and problem solving to handle their public exam. Prepare your response to solve the next similar problem.

I have put my effort to provide free HKDSE Maths YouTube education since 2009 to students who are self-learners or in need. I want to set an symbol to the other teachers. If we can each donate a bit of our effort to help students in a creative way, our students may not need to pay expensive fee or precious time to private tuition centres. Moreover, the individual difference can be reduced. I still believe education can change our next generation.

If you think my channel helps you, please take a photo with me when you get the HKDSE result. It would be the best way to prove what I do is worthy.

S3 Ex1E Harder Problems On Factorization Part 5 (Cross Method)
2:00
S3 Ex1E Harder Problems On Factorization Part 5 (Cross Method)
S3 Ex1E Harder Problems On Factorization Part 4 (Cross Method)
3:59
S3 Ex1E Harder Problems On Factorization Part 4 (Cross Method)
S3 Ex1E Harder Problems On Factorization Part 3 (Cross Method)
5:38
S3 Ex1E Harder Problems On Factorization Part 3 (Cross Method)
S3 Ex1E Harder Problems On Factorization Part 2 (Cross Method)
3:10
S3 Ex1E Harder Problems On Factorization Part 2 (Cross Method)
S3 Ex1E Harder Problems On Factorization Part 1 (Cross Method)
4:49
S3 Ex1E Harder Problems On Factorization Part 1 (Cross Method)
S3 Ex1D Factorization Of Quadratic Polynomials in 2 variables Part 2 (Cross Method)
6:58
S3 Ex1D Factorization Of Quadratic Polynomials in 2 variables Part 2 (Cross Method)
S3 Ex1D Factorization Of Quadratic Polynomials in 2 variables Part 1 (Cross Method)
6:50
S3 Ex1D Factorization Of Quadratic Polynomials in 2 variables Part 1 (Cross Method)
S3 Ex1C Factorization Of Quadratic Polynomials 2 Part 3 (Cross Method)
3:09
S3 Ex1C Factorization Of Quadratic Polynomials 2 Part 3 (Cross Method)
S3 Ex1C Factorization Of Quadratic Polynomials 2 Part 2 (Cross Method)
5:49
S3 Ex1C Factorization Of Quadratic Polynomials 2 Part 2 (Cross Method)
S3 Ex1C Factorization Of Quadratic Polynomials 2 Part 1 (Cross Method)
6:11
S3 Ex1C Factorization Of Quadratic Polynomials 2 Part 1 (Cross Method)
S3 Ex1B Factorization Of Quadratic Polynomials 1 Part 3 (Cross Method)
6:04
S3 Ex1B Factorization Of Quadratic Polynomials 1 Part 3 (Cross Method)
S3 Ex1B Factorization Of Quadratic Polynomials 1 Part 2 (Cross Method)
5:03
S3 Ex1B Factorization Of Quadratic Polynomials 1 Part 2 (Cross Method)
S3 Ex1B Factorization Of Quadratic Polynomials 1 Part 1 (Cross Method)
5:58
S3 Ex1B Factorization Of Quadratic Polynomials 1 Part 1 (Cross Method)
LHYMSS Football Club Training Highlight
1:14
LHYMSS Football Club Training Highlight
2122 足球學會 生涯規劃2 落選港隊
22:40
2122 足球學會 生涯規劃2 落選港隊
2122 足球學會 生涯規劃1 重創
15:44
2122 足球學會 生涯規劃1 重創
2122 FootballClub 20220427 (Zoom)
1:13:04
2122 FootballClub 20220427 (Zoom)
HKDSE 2019 Maths Core Paper 2 Q45: Change of Data 數據改變、Variance 方差
3:31
HKDSE 2019 Maths Core Paper 2 Q45: Change of Data 數據改變、Variance 方差
HKDSE 2019 Maths Core Paper 2 Q44: Data Dispersion 數據離差、Standard Score 標準分
1:58
HKDSE 2019 Maths Core Paper 2 Q44: Data Dispersion 數據離差、Standard Score 標準分
HKDSE 2019 Maths Core Paper 2 Q43: Probability 概率 、Scenarios Counting 數場境
2:53
HKDSE 2019 Maths Core Paper 2 Q43: Probability 概率 、Scenarios Counting 數場境
HKDSE 2019 Maths Core Paper 2 Q42: Probability 概率 、Scenarios Counting 數場境、Combination 組合
3:10
HKDSE 2019 Maths Core Paper 2 Q42: Probability 概率 、Scenarios Counting 數場境、Combination 組合
HKDSE 2019 Maths Core Paper 2 Q41: Four centres of Triangle 三角形四心
3:12
HKDSE 2019 Maths Core Paper 2 Q41: Four centres of Triangle 三角形四心
HKDSE 2019 Maths Core Paper 2 Q40: Trigonometry in 3D 三維三角比、Cosine Formula 餘弦公式
3:30
HKDSE 2019 Maths Core Paper 2 Q40: Trigonometry in 3D 三維三角比、Cosine Formula 餘弦公式
HKDSE 2019 Maths Core Paper 2 Q38: Deductive Geometry 演繹幾何、Sine Formula 正弦公式
3:24
HKDSE 2019 Maths Core Paper 2 Q38: Deductive Geometry 演繹幾何、Sine Formula 正弦公式
HKDSE 2019 Maths Core Paper 2 Q37: Circle Equation 圓形方程、sum and product of roots 兩根和、 兩根積
3:38
HKDSE 2019 Maths Core Paper 2 Q37: Circle Equation 圓形方程、sum and product of roots 兩根和、 兩根積
HKDSE 2019 Maths Core Paper 2 Q36: Geometric Sequence 等比數列、 Simultaneous Equations 聯立方程
2:39
HKDSE 2019 Maths Core Paper 2 Q36: Geometric Sequence 等比數列、 Simultaneous Equations 聯立方程
HKDSE 2019 Maths Core Paper 2 Q35: Linear Programming線性規劃、 linear inequalities線性不等式組、Linear Equation
3:17
HKDSE 2019 Maths Core Paper 2 Q35: Linear Programming線性規劃、 linear inequalities線性不等式組、Linear Equation
HKDSE 2019 Maths Core Paper 2 Q34: Complex Number 複數、 Rationalization 有理化
3:59
HKDSE 2019 Maths Core Paper 2 Q34: Complex Number 複數、 Rationalization 有理化
HKDSE 2019 Maths Core Paper 2 Q33: Number System Conversion 數制轉換、Index 指數
2:42
HKDSE 2019 Maths Core Paper 2 Q33: Number System Conversion 數制轉換、Index 指數
HKDSE 2019 Maths Core Paper 2 Q32: Logarithm 對數、 Fraction 分數
2:41
HKDSE 2019 Maths Core Paper 2 Q32: Logarithm 對數、 Fraction 分數