The secret to "randomly circling" and still getting good scores
According to this teacher, one of the biggest problems candidates often encounter is not managing their test time well, causing their test results to be lower than their actual ability.
Many candidates make the mistake of distributing time inappropriately between sections, spending too much time on some difficult questions while rushing, making mistakes, or missing easy questions, questions that are within their ability and that they can do.
To overcome the above problem, in the final week, students need to develop a test-taking strategy that is appropriate to their abilities and score goals, while not limiting their chances of achieving higher scores. The core of this is to develop a reasonable time allocation table to apply during the test-taking process.
Specifically, the current physics exam consists of 40 questions, each with 4 options A, B, C, and D. Thus, the probability of randomly choosing to answer any question correctly is 1/4. This means that even in the case of no knowledge, just by randomly choosing, students can still achieve an average score in Physics of 0.25x40x1/4 = 2.5 points.
Mr. Nguyen Thanh Nam, lecturer at Military Technical Academy, physics teacher on VTV7 channel (Photo: Ha Le).
If the candidate is capable of doing N questions (knowing how to do them, doing them correctly, and doing them on time), they only have to randomly choose (40 - N) the remaining questions, then the average score the candidate can achieve is Đ = 0.25xN + 0.25x(40-N)x1/4 = 0.1875xN + 2.5. From this formula, we can deduce that to achieve the desired score of Đ, it is necessary to proactively do at least N = (Đ - 2.5)/0.1875 questions correctly in the exam and randomly guess (40 - N) the remaining questions. Based on this formula, we can create the data table below.
The number of questions must be actively completed and completed according to the desired score.
You can rely on this table to build a suitable test-taking strategy for yourself. First, each person needs to determine the physics test score that needs to be achieved. Then, based on the data table, determine the number of questions that need to be actively done and correctly done. Finally, candidates base on the total number of questions that need to be actively done correctly to allocate the test-taking time appropriately.
To be able to allocate time for the number of questions that need to be actively answered correctly, we divide the questions in the test into 4 categories: the first 15 questions are category 1 (H1); questions from 16 to 30 are category 2 (H2); questions from 31 to 35 are category 3 (H3); and the last 5 questions in the test are category 4 (H4). On that basis, we can build a time distribution table according to the desired score and each question category below.
How to "circle randomly" but still get points (Photo: Manh Quan).
According to this table, each score level has two columns, the left side is the number of questions that need to be actively answered and answered correctly, the right side is the total time spent on a question category and the average time for a question in the category. For example, to get 8 points, the candidate needs to actively answer 29 questions correctly, including 15 questions in H1 and 14 questions in H2, and randomly guess the remaining 11 questions in the exam.
The time to complete 15 H1 questions is 20 minutes, averaging 80 seconds per question, and the time to complete 14 H2 questions is 30 minutes, averaging 128 seconds per question. Randomly guessing the remaining 11 questions can be done within a minute.
Note that candidates do not need to remember the entire content of the table, but only need to remember the time frame according to the score you need. If your goal is 8 points, just remember "15 questions in 20 minutes and 14 questions in 30 minutes" is enough. After clearly determining the numbers, you need to apply the time frame in the process of doing the practice test.
Time distribution table by score and question rank.
During the test, candidates need to control the total time spent on a question category so that it does not exceed the set time frame, and the time spent on a question must not exceed the average time calculated plus the time saved from previous questions. They must be extremely careful but at the same time try to do it as quickly as possible to save time for the remaining questions.
After completing all the possible questions, in the last 2 minutes before the end of the test, you randomly guess the questions you cannot do according to the principle: on the answer sheet, among columns A, B, C, D, there is usually a column with the fewest number of choices, randomly guess all the remaining questions in that column to maximize the probability of guessing correctly. In case there are many columns with the same number of low choices, you can choose any column.
Creating a time frame is for easy control, avoiding the situation where the time spent on previous questions encroaches on the time spent on later questions.
Source: https://dantri.com.vn/giao-duc/cach-gianh-diem-mon-vat-ly-ngay-ca-khi-khoanh-bua-20240622102515873.htm
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