Fraction An overview of the basics of middle school math!
Score every day Every day, I use a small chart to share with you the key points, difficult points, easy to make mistakes, and easy to mix points before the exam, so that you can master a knowledge point in one minute. One point a day, the improvement of grades is visible.
The textbook knowledge summary system combines the knowledge of the textbook, explains the knowledge points in detail, highlights the key points, highlights the notes, and explains the important and difficult points in combination with clues, such as graphics, comics, and annotations, so as to facilitate students to understand the relevant knowledge points.
15.1 point.
15.2 Fractional arithmetic.
15.3 Fractional equations.
Although the knowledge points in this chapter are not difficult overall, some details are easy to make mistakes and require special attention. When learning fractions, we need to fully understand the relationship and difference between fractions and pay attention to the following:
First, it is essential to understand the conditions under which a score is meaningful. The denominator cannot be zero, which is the basic premise of the fractional equation. We should always pay attention to this when solving problems to avoid meaningless scores.
Secondly, it is necessary to understand the common division of the division and the fraction. Reduction refers to the simplification of fractions by approximating the common factors of the numerator and denominator; General fraction refers to the addition and subtraction of the denominator of two or more fractions. After learning these knowledge points, it is necessary to deepen the understanding and mastery through a lot of practice.
In addition, familiarize yourself with the nature and algorithm of fractions. Fractions have some properties that are similar to fractions, such as the algorithm of addition and subtraction of fractions. After learning these knowledge points, you can use a fraction-like method to learn for better understanding and mastery.
In short, when learning the chapter on fractions, special attention should be paid to the knowledge points such as the conditions for the meaning of fractions, the reduction and the general score, and the properties and algorithms. Through the in-depth understanding and mastery of these knowledge points, we can better deal with various score problems and improve the accuracy and efficiency of problem solving.