1, science paper difficulty:
The 2023 Heilongjiang college entrance examination science questions are medium in difficulty. In 2023, the proportion of basic points in the science mathematics examination of Heilongjiang college entrance examination was still quite high. As long as you grasp the accuracy of the first few, you still have a chance to get high marks. As for the final finale, there is no need to be too demanding, just take a few points according to the steps.
Try to ensure that the proof process and calculation method are easy to understand when answering the science mathematics questions in Heilongjiang college entrance examination in 2023. When solving problems, use common symbols, which is not easy to lose. Some candidates will use some special methods for simplicity, but once the result is wrong, it will affect the score.
The final question of Heilongjiang science mathematics exam is still very difficult. The biggest attraction of college entrance examination mathematics is the finale, because it is generally used to open the gap. Many Heilongjiang candidates are psychologically prepared and have the idea of giving up as soon as they enter the examination room. '
2, mathematics answering strategy:
The basic principle of choosing and filling in the blanks is to make a mountain out of a molehill. Directly consider the stem of the question, seek the result, consider the stem of the question and the choice together, and seek the conditions to meet the stem of the question from the choice.
The basic methods to solve the fill-in-the-blank problem are direct solution, image method, construction method and specialization method (such as special value, special function, special angle, special sequence, special position of figure, special point, special equation, special model, etc.). ).
Common problems of mathematical norms:
1, solution and solution set problem.
The result of an equation is generally expressed by a solution (unless the solution set is emphasized); The results of inequalities and trigonometric equations are generally expressed by solution sets (sets or intervals) and must be added to the general solution of trigonometric equations; When writing an interval or set, write parentheses, square brackets or curly braces correctly. Interval and geometric elements are separated by commas.
2. For calculation problems or application problems with units, the final result must be with units.
Especially after solving the application problem, you must write an "answer" that meets the meaning of the problem. Generally, comprehensive conclusions should be written for classified discussion questions. Any result should be the simplest. Arrange the combination questions, unless otherwise specified, require numerical values. Function problems generally need to indicate the domain (especially the inverse function).
3. The answering process should be neat and beautiful.
For example, turning your problem-solving process into a scoring point mainly depends on accurate and complete mathematical language expression, which is often ignored by some candidates. Therefore, there are a lot of "meeting but not right" and "right but not complete" situations on paper.
For example, "jumping questions" in solid geometry argument makes many people lose points, and "substituting proof with pictures" in algebraic argument is not good at accurately transforming "graphic language" into "written language", although it is correct or even clever in solving problems, even though candidates are "aware", they are not clear and score less.