19/07/2025
Does your child know all the Science concepts but still loses marks in open-ended questions? It’s a common frustration, and the reason often isn't about memory, but about technique.
It’s painful to see your child write down a scientifically correct statement, only to not get full marks. Let's look at a classic example that trips up many students.
Imagine an experiment with two grasshoppers in jars:
Set-up A: Grasshopper in a sealed jar with food.
Set-up B: Grasshopper in a jar with holes in the lid and food.
The question asks: "What can you conclude from this experiment?"
Many children will write: "Living things need air, food, and water to survive."
While that fact is 100% correct, it would not score full marks here. Why? Because the experiment only tested for the necessity of air. Both setups had food, and neither had water.
The precise, full-mark conclusion should be: "Living things need air to survive."
This is the difference between simply knowing a fact and applying it with precision based on the evidence provided. It’s a core skill for PSLE Science, where examiners look for conclusions drawn only from the data given in the question.
Getting these process skills right is what turns "almost correct" answers into confident, full-mark answers. In our digital bundle of video explanations for the latest Top School Prelim Papers, Mr. Shane breaks down the answering techniques for over 400 questions just like this, showing exactly how to use the CER method and keywords to secure every single mark.
Give your child the confidence to answer with precision. Learn the techniques at https://www.thinkerlearning.com/past-test-papers
