How to learn high school biology?

First of all, we must understand three points:

1. Interested in learning biology. Interest is the driving force of learning and the first teacher of learning. With interest, you will be actively and happily involved, and you will not feel that learning is a burden.

2. Kiss your teacher. The ancients said that if a student likes this teacher, he will definitely not get bad grades in this course taught by this teacher.

3. Starting from the first year of high school. Senior one is the starting point and the foundation. Laying a good foundation step by step is not difficult to learn, just like climbing a tower. It looks high and a little scared. It's not difficult to wait until you step up the stairs.

How to learn high school biology;

1, grasp the law

Law is the inevitable connection of the intrinsic essence of things themselves. Biology has its own laws, such as the adaptation of structure and function, the unity of part and whole, the harmony between biology and environment, the evolution from simple to complex, from low to high, from aquatic to terrestrial. Mastering these laws will contribute to the understanding and application of biological knowledge. For example, in mitochondrial learning, it is necessary to grasp the adaptive law of structure and function: there is a double-layer membrane, and the inner membrane folds inward to form a ridge, which expands the membrane area and is conducive to the regular arrangement of aerobic respiratory enzymes on it; Therefore, mitochondria are the main place for aerobic respiration. Its structure and function are easier to understand and remember.

Step 2 observe and compare

Observation is a purposeful and planned perception, which can not only acquire new knowledge, but also verify what is known. Biology is an experimental science, and observation is an important link to acquire biological knowledge. Such as observing the morphological structure, living habits, growth and development of organisms, and effectively playing the role of observation in biological learning. The principles and laws of our biology are based on observation and experiment. ?

Comparison is an important way to know things, and only by comparison can we distinguish them. There are many things that can be compared in biology, such as animal cells and plant cells, photosynthesis and respiration, hibernation and summer sleep, etc. When comparing, pay attention to a comprehensive understanding of the comparison object, and then determine the comparison items, and be concise, such as photosynthesis and respiration, which can be fully understood from the aspects of location, conditions, process, results and significance. Comparison is helpful to understand the nature of photosynthesis and respiration. There are many biological concepts in middle school, which are easy to be confused and difficult to remember. Comparison is one of the effective methods.

3. Comprehensive induction

Teachers' teaching, especially new teaching, is generally divided into blocks, but there is an inherent and essential connection between each block and each knowledge point, and the biological knowledge of each grade is coherent and a whole. When learning, we should gather scattered knowledge and summarize it into systematic knowledge, so that it is easy to understand and remember. ?

Comprehensive induction should achieve "three grasps". First, grasp the order, second, grasp the relationship, and third. Grasping the order is to connect the knowledge points in series according to their own logical relationship. For example, the material basic knowledge passed down from high school can be connected in series according to the central principle. Grasping the connection, for example, the connection point between nerve cells and brain and spinal cord is that nerve cells are divided into cell bodies and processes, and cell bodies are composed of gray matter of brain and spinal cord. Grasping the characteristics means grasping the key points and the mainstream. Comprehensive induction is not a matter of grasping eyebrows and beards, nor is it a hodgepodge. Minor things should be simplified or even cancelled.

4, flexible use

This is the key to learning living biology well, and the purpose of understanding lies in application. Flexible use of knowledge can remember the prison, and learning is really useful. Using knowledge to solve practical problems in projects or production and life, especially the latter is the weak link of middle school students, which must be highly valued. If high school students study mitosis and meiosis and find out the changes of chromosome morphology and number behavior during the process of these two kinds of cell division, they can be used to distinguish mitosis and meiosis maps. After learning the knowledge of ecology, I tried to build an ecological community at home and develop the courtyard economy. As long as you have the heart, biology is everywhere and everywhere, you will learn well and learn to live.

You still need to master good memory methods.

Memory is the foundation of learning, the storehouse of knowledge, the companion of thinking and the premise of creation. Therefore, according to the characteristics of different knowledge, with appropriate memory methods, learning efficiency and quality can be effectively improved.

There are many ways to remember. The following are just the most common ones in biology learning.

A simplified memory method is to analyze the teaching materials, find out the main points, and simplify knowledge into regular words to help memory. For example, the molecular structure of DNA can be simplified as "5432 1", that is, five basic elements and four basic units, each unit has three basic substances, and many units form two deoxynucleotide chains, which become a regular double helix structure.

B Associative memory method is to skillfully use association to help memory according to the content of teaching materials. For example, remember trace elements: iron, manganese, boron, zinc, molybdenum and copper. You can use homophonic memory to remember that iron hit a new bucket, so that you can remember it and not forget it easily.

C comparative memory method in biology learning, there are many similar nouns that are easily confused and difficult to remember. For such content, you can remember it by comparison. Comparative method is to list related nouns separately, and then compare them from the aspects of scope, connotation, extension and even words, and find out the differences by retaining similarities. This contrast is obvious and easy to remember. For example, assimilation and alienation, aerobic respiration and anaerobic respiration, hormone regulation and nerve regulation, material circulation and energy flow.

Finally, we should form a good study habit. Establishing good study habits is an important guarantee for learning biological knowledge well. Learning routine refers to several steps that we must pay attention to in the learning process, including preview, listening, review, homework and summary.