# Writing tip, how you shouldn’t end your composition (Part I)

Writing tip: How would you feel if Ironman ended with Tony Stark waking up and realizing it’s all a dream? Or the Harry Potter series ends with Harry waking up to realize he’s a Primary school kid in Singapore and it’s all a dream? It’s quite an anti-climax, isn

# My Son Can’t Get Into My School of First Choice!

It’s OK. Take a deep breath. Nothing bad will happen to your child. Keep calm and carry on. A lot of parents have been panicking recently and indulge into self-blame: Why havenâ€™t I volunteered enough so my child can get into the best primary school? There are so many primary schools; which is the best?[…]

# Scientific reasoning and experiment design

Science tip: Here’s a very interesting question. Some people answered (1), some people answered (2). Some teachers can’t explain why. The answer is (2). The reason is because we don’t know why the bulb doesn’t light up. It could be due to A. It could be due to B. It could be due to a[…]

# Maths question – area of a square inside a circle inside a square

Maths tip: Another area question that seems to be quite popular. 2 solution methods are presented

# Maths question – area of divided circle

Maths tip: Area problems can be challenging. One way to tackle these is to familiarise yourself with some of the problems and get an idea of how to solve them. Here’s one example. Try it!

# When to use "nor"

English tip: When to use "nor"? NOTE: It literally means "and not." It expresses a negative condition and you are obligated to use "nor" if your sentence expresses a negative and follows it with another negative condition. 1. Let’s start with an easy one. When you use "neither" in a sentence, you use "nor" to[…]

# Gravity is proportional to mass

Science tip: All objects at the same place experience a gravitational FORCE (or pull) that is proportional to its mass. So the larger the mass, the larger the gravitational force. This force is there regardless of the speed or orientation of the object. It is there whether the object is flying or falling, whether it’s[…]

# Fewer or Less

English tip: This is a common sign we see at supermarkets. "10 items or less"— this is WRONG. Remember: -You use "less" when you are referring to things you are unable to count. -You use "fewer" when you can count the items individually. Examples: I want a cup of coffee with less sugar in it.[…]

# Friction is independent of surface area

Science tip: Friction is independent of the surface area! It may sound counter-intuitive, since increasing the contact area would create a larger source of frictional forces. However, it also reduces the pressure between the two surfaces for a given force holding them together. Since pressure equals force divided by the area of contact, it works[…]

# Solving ratio questions involving three quantities

Maths tip: For ratio problems where there are three groups of items with two ratios given – it is usually the case that you’ll need to express them into a common ratio. Here’s an example: "A fruit seller had some oranges, pears and mangoes. After selling some of them, there were 6 pears for every[…]