The ClassRoam

11/06/2025

Mathematics (problem of the day) — Solve and evaluate the special integral:

09/06/2025

Artificial Intelligence (Problem of the Day) — Neural Network Activations Problem

In building and training neural networks, we will definitely have an activation function, after mathematical computation at every node in the network. Why do we need the activation function? Can we do without it?

29/05/2025

Physics - The Relativity Problem

Supposed you travel on a spacecraft travelling at 99.99% speed of light to a star system, 10 light years away from the Earth orbit, where you currently are. How long would you take to reach the star system? And why?

27/05/2025

We are offering a range of Math, Physics, Coding, Data Science and AI lessons for students of all ages, with a focus on high school/JC students.

Utilizing a unique teaching pedagogy, based on step-wise learning from first principles, The ClassRoam aims to teach students holistically, with an emphasis on derivation.

To apply for a free trial lesson, please visit our website:

The ClassRoam™ offers online classes and F2F lessons in Singapore, focusing on Math and Physics tuition at Secondary and JC levels, as well as weekly bootcamps for Coding, Data Science and AI. Free trial lesson, call +6593223860.

27/05/2025

Physics - The Buoyancy Problem

If you were in a boat in the middle of a lake, and you had a bunch of rocks in the boat, if you threw them in the water, would the water level rise or fall?

Answer: The water level will fall. Why?

26/05/2025

Mathematics - The Goldbar Problem

Suppose you have to pay an employee evenly over 5 days, with each day receiving the same amount. You only have a gold bar. What is the minimum cuts (most efficient cut) you can make, such that the employee will receive the same amount everyday?