Welcome! My name is Dennis Tan.

I created this channel to help you:

- solve Mathematics and Science questions that you will frequently encounter at junior high/secondary level (grade 7-10, IGCSE, GCE 'O' level).

- better understand some important concepts at these levels.

- mentally prepare for your exams.

- overcome some mental hurdles (procrastination, low self-esteem, etc..) that you may encounter in your journey of learning and self-discovery.

I have been coaching students since 2010 and have excelled in my Mathematics and Science exams at secondary (GCE 'O' level) and tertiary (GCE 'A' level) levels. As such I believe my wealth of experience would be useful in helping you achieve your educational goals.

Drop a comment to let me know what questions you want me to solve.

If you find my videos helpful, do consider subscribing to my channel!

See you in the next video!

Show -x² +2x - 6 is always Negative (Completing the Square method)
6:29
Show -x² +2x - 6 is always Negative (Completing the Square method)
Hard Venn Diagram Example (Part 3)
4:31
Hard Venn Diagram Example (Part 3)
Show 2x² + 3x + 7 is Always Positive (Discriminant method)
7:38
Show 2x² + 3x + 7 is Always Positive (Discriminant method)
Prove x² + 2x + 5 is Always Positive (Completing the Square Method).
5:53
Prove x² + 2x + 5 is Always Positive (Completing the Square Method).
Let's solve a hard Indices question in Mathematics!
5:37
Let's solve a hard Indices question in Mathematics!
Simple Way to Convert g/cm³ to kg/m³.
4:07
Simple Way to Convert g/cm³ to kg/m³.
Easy Way to Convert kg/cm³ to g/cm³.
3:39
Easy Way to Convert kg/cm³ to g/cm³.
Use Tips about Parallel Electrical Circuits.
7:15
Use Tips about Parallel Electrical Circuits.
7 Common Ions to remember in Chemistry
5:12
7 Common Ions to remember in Chemistry
Importance of Correct Units for Speed, Time, Distance calculations.
5:41
Importance of Correct Units for Speed, Time, Distance calculations.
Simple Way Convert Time from Minutes & Seconds to Minutes and vice versa.
5:08
Simple Way Convert Time from Minutes & Seconds to Minutes and vice versa.
Easy Way to Remember Trigonometric ratio of special angles (30°, 45°, 60°).
7:30
Easy Way to Remember Trigonometric ratio of special angles (30°, 45°, 60°).
Hard Venn Diagram Example (Part 2)
3:52
Hard Venn Diagram Example (Part 2)
Hard Venn Diagram Example (Part 1)
3:52
Hard Venn Diagram Example (Part 1)
Venn Diagram: How to shade Union examples
3:26
Venn Diagram: How to shade Union examples
Venn Diagram: How to shade intersections.
3:07
Venn Diagram: How to shade intersections.
Powerful Tip to Solve Similar Triangles questions.
7:06
Powerful Tip to Solve Similar Triangles questions.
Solving a hard Inverse Proportion Mathematics question (Secondary/Junior High level).
5:04
Solving a hard Inverse Proportion Mathematics question (Secondary/Junior High level).
Solving a Hard Kinematics Physics question (Secondary/ Junior High Level).
8:41
Solving a Hard Kinematics Physics question (Secondary/ Junior High Level).
Understand Acceleration Easily!
5:35
Understand Acceleration Easily!
Best Way to Identify a Redox Reaction.
7:33
Best Way to Identify a Redox Reaction.
Covalent Substance's Low Melting and Boiling point explained!
5:14
Covalent Substance's Low Melting and Boiling point explained!
Easily Draw Electronic Configuration of Covalent Bonded Substances
6:30
Easily Draw Electronic Configuration of Covalent Bonded Substances
Best Way to Solve Quadratic Equations
10:39
Best Way to Solve Quadratic Equations
Easy Way To Convert Radians to Degrees for angles.
2:43
Easy Way To Convert Radians to Degrees for angles.
Easy Way To Convert Degrees to Radians (for angles).
2:50
Easy Way To Convert Degrees to Radians (for angles).
Quadratic Equations: Avoid this Error when solving them!
6:22
Quadratic Equations: Avoid this Error when solving them!
Quadratic equations: Why equate to zero?
5:51
Quadratic equations: Why equate to zero?
Correct Units for your solutions in Physics
4:48
Correct Units for your solutions in Physics
Easily Convert kWh to J (kilowatt-hour to Joules)!
3:06
Easily Convert kWh to J (kilowatt-hour to Joules)!