A few months back, the Straits Times conducted an experiment to test the prowess of Open AI’s revolutionary chatbot, ChatGPT. They fed ChatGPT with past year PSLE questions and assessed whether ChatGPT was smarter than a PSLE student.
The verdict? ChatGPT was “defeated” by the PSLE. It was found to be “miserable” at handling Mathematics and Science and only “scraped though most of the English comprehension questions”. When the Straits Times published their findings on the papers, public responses were aplenty but mixed. Some expressed utter horror and used these findings as fodder for the overused argument that the PSLE is simply too difficult for a 12-year-old. Others were smug and proudly proclaimed how high the standard of education is in Singapore: ChatGPT was able to pass the toughest exams in the United States including Wharton’s MBA exam, the New York Bar exam, and the US medical licensing exam, but it failed to surmount the hurdle of Singapore’s PSLE.
Knowing how powerful and smart ChatGPT is and can be, we were, to be very honest, shocked by the Straits Times’ report. To satisfy our curiosity, we decided to test ChatGPT on our own. We did not test it with Mathematics or Science because we wanted a fair test. Open AI, the creator of ChatGPT, has long acknowledged that the current version of ChatGPT is still not adept at interpreting images, diagrams or graphs. Since questions with images, diagrams and graphs form a significant bulk of Mathematics and Science questions, ChatGPT would not do well for these two subjects. Hence, for our little experiment, we focussed on English. We used the entire 2022 PSLE English Paper 2, except for Visual Text Comprehension and Comprehension Open-Ended.
For the most part, our findings were to be expected but there were some surprises! Here’s what we found:
PSLE 2022 Grammar MCQ: 6/10
We typed in all 10 Grammar MCQ questions and asked ChatGPT for the answers as well as explanations. ChatGPT disappointingly gave us 4 wrong answers as well as 4 shockingly misdirected explanations. The worst part is that we are still befuddled as to why and how ChatGPT could have made such glaring errors in multiple-choice-questions.
Note: Questions 5, 6, 9 and 10 were answered wrongly.


PSLE 2022 Vocabulary MCQ: 5/5
We typed in all 5 vocabulary MCQ questions and asked GPT for the answers. ChatGPT was expectedly flawless.

PSLE 2022 Vocabulary Cloze: 4/5
We typed the entire passage onto ChatGPT and asked it what word the phrases or words in the questions have the closest meaning to. ChatGPT got the first question wrong. This question requires appreciating the context of the passage and inferring what the figurative phrase “feasting my eyes on” means. The fact that ChatGPT chose “observing” as the answer shows that it only understood the literal meaning of “feasting my eyes on” as opposed to the inferred meaning of it in the passage. This is evidence of a clear limitation of ChatGPT.

PSLE 2022 Grammar Cloze: 10/10
We typed the entire passage onto ChatGPT together with the 10 questions and 15 options. We told ChatGPT that it could only use one option once for each question. It masterfully answered every question correctly.
PSLE 2022 Editing: 12/12
We typed the entire passage onto ChatGPT together with the 12 grammar and spelling mistakes. We asked ChatGPT to correct the spelling and/or grammatical mistakes. Surprisingly, ChatGPT understood our instructions and corrected all 12 mistakes.
PSLE 2022 Comprehension Cloze: 15/15
We typed the entire passage onto ChatGPT together with the 15 blanks. We told ChatGPT to fill in every blank with an appropriate word. ChatGPT did not disappoint.
PSLE 2022 Synthesis & Transformation: 10/10
We typed all 5 questions onto ChatGPT and asked it to transform the original sentence to a new sentence based on the helping words provided in each question. ChatGPT understood the brief and gave us 5 correct answers. Do note that ChatGPT’s answers to questions 2 and 4 are different from the answer sheet but we believe they are acceptable.

Concluding Remarks
Depending on how high a pedestal you put ChatGPT on, 5 mistakes out of a total of 67 questions is not too bad. This remarkable performance of ChatGPT confirms one thing: if used in the right way, it can be a very useful tool for self-directed learning. However, as the perennial question goes, would ChatGPT be able to replace the role of a teacher? The short answer is no, at least not right now.
As demonstrated, ChatGPT will, for the most part, be able to give you the right answers and explanations to questions. But it is far from infallible. The revolutionary AI chatbot is prone to making very fundamental mistakes. The other major issue with ChatGPT is that it is not a flexible teaching tool because you must always ask it the right questions. ChatGPT does not know you and cannot read your mind. It is thus only as effective as the questions you ask it. And therein lies the problem. Asking the right questions is the most difficult part. From our experience teaching so many different students from different schools, we understand students by and large do not know what they do not know. When students do not know what they do not know, they would naturally not know what to ask. As ChatGPT is unable to assess or diagnose students, it is powerless to provide any form of meaningful assistance on this front.

Let’s compare this for a second to what we do at Think Teach Academy. Our students go through block assessments every 4 lessons under our tutelage. Such assessments allow our teachers to track the proficiency and progress of every student. Knowing the strengths and weaknesses of our students means that we can better guide and coach them. Knowing the gaps in their understanding means that we do not have to wait for our students to ask us questions. We can pre-emptively tell and teach them what they need to know. Such is the experience and expertise of a good teacher that artificial intelligence has still not yet figured out how to replicate.
So, for now, we can safely say that the job of the teacher is still well and secure. Things might of course change and be different in the future, but until then, if you are going to use ChatGPT, pay heed to a wise latin saying, caveat utilitor (or user beware!). Be mindful that ChatGPT does not spout gospel truth so use it carefully and at your own risk!
This article was proudly written for you by TTA’s English Team. Every year, we impact over a thousand students and empower them with our smart techniques to achieve exam excellence in their school exams as well as their PSLE. We want your child to be our next success story! Together with us, your child can strengthen his/her mastery of paper 2 content by joining our Full English Programme (FEP). Additionally, your child can hone his/her composition writing skills by partaking in our Junior Writing Classes (JWC) and Master Writing Classes (MWC).