Memory teaching method of recipe 1 reciting folk songs, focusing on memorizing nearly 400 positive and negative prescriptions selected in the current textbook of recipe. Students should be familiar with or master the basic contents of each prescription, such as what drugs are composed of, what functions they have, what diseases they are attending, etc., which is the most headache in the learning process of prescription science. Indeed, it is really difficult to remember and master these contents in isolation. Therefore, in order to facilitate memory, the senior doctor refined and compressed the key contents of the prescription and compiled it into a square song in the form of a song. For example, the square song of Mahuang decoction is: "Mahuang decoction uses cassia twig, almond and licorice, which perspires to relieve exterior symptoms and promote lung qi, and exterior syndrome of typhoid fever should not perspire." In just four sentences, the folk songs cover the main contents such as prescription name, prescription compatibility, functional indications, main symptoms and so on. Square songs are a traditional memory method of traditional Chinese medicine, with harmonious phonology, catchy mouth and easy memory. The syllabus of Prescription Science clearly stipulates that it is required to master or read more than 50 prescriptions/kloc-0 in the textbook. To this end, the author requires students to bring their own pocket notebooks to class for the first time, copy the learned folk songs on them, and recite a few songs in the morning or after school. Before reciting the new square songs, they must first recite the old square songs, so as to "review the old ones and learn the new ones", learn to recite them chapter by chapter and learn where to copy them. Some students have a deep understanding after trying for a period of time, and feel that although the square songs are attached to the book. I often warn students that they have a strong memory when they are young, and it is not easy to forget what they have recited. Therefore, from an early age, they are required to recite more and more, check and urge before class every time, and write down the folk songs in class regularly. Many students who have seen and practiced feel why the teacher repeatedly emphasized the importance of reciting the square songs in the recipe class at that time, because only by reciting the square songs skillfully and accurately can clinical users be handy. 2 Evolution and extension, expanding memory This method is to sort out, summarize and extend the series of squares evolved from some basic squares or similar squares that have undergone appropriate addition and subtraction, and organically connect them to expand memory. For example, Sijunzi decoction is the basic prescription of invigorating qi, which is composed of ginseng, Atractylodes macrocephala, Poria cocos and roasted licorice. Its function is to invigorate qi and spleen, and it is mainly used to treat spleen and stomach qi deficiency syndrome. If Chenpi Ming Yi Gong San is added, both functions can cause qi stagnation, which is suitable for spleen and stomach qi deficiency and qi stagnation. Adding Tangerine Peel and Banxiaming Liujunzi Decoction can eliminate dampness and phlegm, which is suitable for spleen and stomach qi deficiency and phlegm-dampness syndrome. Adding Pericarpium Citri Reticulatae, Rhizoma Pinelliae, Radix Aucklandiae and Fructus Amomi with fragrant sand can remove qi and phlegm, and is suitable for patients with spleen and stomach qi deficiency and phlegm stagnation. Sijunzi Decoction can be derived from the above-mentioned attached prescriptions, such as Gong Yi Powder, Liujunzi Decoction and Xiangsha Liujunzi Decoction, or from Shen Ling Baizhu Powder, Buzhong Yiqi Decoction and Guipi Decoction. Sometimes, its medicinal ingredients are just blindly different, but their functions are quite different and their classification is different. For example, the Lizhong Pill in the name of adding Poria cocos and dried ginger in Sijunzi Decoction belongs to the agent of warming the interior, and its function is mainly to warm the middle energizer and dispel cold, which is suitable for the syndrome of deficiency and cold in the middle energizer; Sijunzi Chujun Decoction, which participates in Guizhi Gui Ling Shugan Decoction, has the effects of warming yang, promoting fluid production, invigorating spleen and promoting diuresis, and is mainly used to treat phlegm retention caused by deficiency of middle yang. This prescription belongs to the agent for warming cold and eliminating dampness. Others, such as Jianpi Pill, Zhishi Xiao Pi Pill, Pocket Pill and Bazhen Decoction, can be said to be the development prescriptions of Sijunzi Decoction. The author realized that after mastering the composition and function of this kind of basic prescription, it is easy to remember more related prescriptions through expansion. Understanding is the basis of memory, and there are internal relations between the composition, prescription meaning, usage and dosage, function (treatment) and indications of prescriptions. Only by understanding deeply, comprehensively and thoroughly can the memory be deepened. For example, Dachengqi Decoction, a cold cathartic, is composed of rhubarb for purging heat, relaxing bowels and clearing the stagnation of excess heat in gastrointestinal tract; Glauber's salt is soft and firm, moistening dryness and removing dryness and firmness; Magnolia officinalis is full of gas; Fructus Aurantii Immaturus promotes qi and eliminates acne; The decoction method is to first decoct Fructus Aurantii Immaturus and Cortex Magnolia Officinalis, and then dissolve Radix et Rhizoma Rhei and Natrii Sulfas. The dosage of Cortex Magnolia Officinalis is twice that of Radix et Rhizoma Rhei, so it pays equal attention to purgation and circulation of qi, and it has the most severe attack. It is a diarrhea agent for Yangming heat syndrome with fullness, dryness and heat and fullness. However, Xiaochengqi decoction does not use mirabilite, and the dosage of Magnolia Officinalis is half that of rhubarb. The three herbs are decocted together, and the heat-purging effect is relatively light. It is mainly used to treat Yangming heat syndrome of fullness, fullness and dryness, and is a laxative. Tiaowei Chengqi Decoction does not need to be dissolved with Fructus Aurantii Immaturus, Cortex Magnolia Officinalis and Natrii Sulfas, but decocted with Radix et Rhizoma Rhei and Radix Glycyrrhizae, so it has a slow effect of purging heat, and is a slow-release agent, which is mainly used to treat Yangming heat syndrome with dryness but excess. This is to understand and infer the difference of its function and indication from the changes of composition, dosage and decocting method. Another example is Duhuo Jisheng soup, which contains many medicinal materials. Related content is difficult to remember, but according to the idea of clinical syndrome differentiation and treatment, we can start with the etiology and pathogenesis of indications. This prescription is mainly used for chronic arthralgia syndrome, and its etiology and pathogenesis are characterized by the combination of cold and dampness, which will not heal for a long time, involving liver and kidney and consuming qi and blood. Therefore, the treatment (that is, the function) should not only dispel wind and remove dampness, but also replenish liver and kidney and qi and blood. After understanding its etiology, pathogenesis and legislation, we will analyze its prescription and medication: Radix Angelicae Pubescentis and Herba Taxilli, which can not only dispel wind and remove dampness, but also nourish liver and kidney; Gentiana macrophylla, Saposhnikovia divaricata, Asari and Cinnamomum cassia help Radix Angelicae Pubescentis to dispel wind, remove dampness, stop arthralgia, warm channels and dispel cold; Achyranthes bidentata and Eucommia ulmoides help Taxilli nourish liver and kidney and strengthen bones and muscles; Nourishing blood and activating blood with Siwu decoction (Angelica sinensis, Ligusticum Chuanxiong, Rehmannia glutinosa and Radix Paeoniae Alba), which means "treating wind first, treating blood, activating blood and extinguishing wind by itself"; Sijunzi decoction (removing Atractylodes macrocephala) can benefit qi and spleen, and help the source of qi and blood biochemistry. Students feel that the prescription prescribed by the teacher in class is not only easy to remember, but also impressive and unforgettable. Grasping the main points and memorizing Chinese medicine prescriptions skillfully requires mastering more contents, and there are also skills problems in memorizing. Teachers should be good at guiding students to find the trick of memory in the teaching process. For example, when explaining the function of prescriptions, the author first requires students to remember the classification of prescriptions according to the principle of "unifying prescriptions by law", and then master some knowledge points on the basis of clarifying the nature of prescriptions to distinguish their personalities. Take Huoxue Huayu recipe as an example, it has the function of promoting blood circulation and removing blood stasis. However, Taohe Chengqi decoction contains Tiaowei Chengqi decoction, which is composed of rhubarb and mirabilite, so it also has the function of removing blood stasis and clearing heat. Because the main medicine peach pit has a strong effect of removing blood stasis, some textbooks call it removing blood stasis or removing blood stasis. Xuefu Zhuyu decoction contains Taohong Siwu decoction and Sini powder, so it has the functions of promoting blood circulation, removing blood stasis, promoting qi circulation and relieving pain. Buyanghuanwu decoction reuse raw astragalus, intended to invigorate qi and promote blood circulation. Taohong Siwu decoction is to remove roots and promote blood circulation, and add earthworm to dredge collaterals, so its function is to invigorate qi, promote blood circulation and dredge collaterals. Fuyuan Huoxue decoction is used to treat traumatic injury, hypochondriac swelling and pain, and also to treat Bupleurum and pangolin, so it still has the effect of soothing the liver and dredging collaterals. The ingredients of this recipe can be recorded interestingly as follows: the general (rhubarb) wears mountains, the peach blossom (pink) is red, and the firewood is expensive (return), and then its medicinal ingredients can be remembered through association; The pathogenesis of Wenjing decoction is cold-heat deficiency and excess (blood stasis), which grasps the yin and yang of qi and blood, supplements qi with ginseng and licorice, nourishes blood with Angelica, Paeonia lactiflora and Chuanxiong (Siwutang removes rehmannia), nourishes yin and clears heat with Ejiao and Ophiopogon japonicus, and warms yang and dispels cold with Evodia rutaecarpa Guizhi (* * * as the monarch medicine). Shenghua decoction is mainly used for nourishing blood, warming channels, removing blood stasis and relieving pain because it is mainly used for treating lochia caused by postpartum asthenia, uterine obstruction due to blood stasis, and abdominal cold pain. Others, such as Shi Xiaosan: promoting blood circulation and removing blood stasis, dispersing stagnation and relieving pain; An active panacea; Promoting blood circulation and removing blood stasis, dredging collaterals and relieving pain (such as Fuyuan Huoxue decoction); Danshen drink: promoting blood circulation and removing blood stasis, promoting qi circulation and relieving pain (weaker than Xuefu Zhuyu decoction); Guizhi Fuling pill: promoting blood circulation and removing blood stasis, and slowly eliminating lumps. Only by mastering the main knowledge points in learning can we compare with others and memorize the important contents of this kind of prescription skillfully. 5 induction and comparison, strengthening memory in some prescriptions of the same chapter, section or category, their composition, function and indications are similar. Therefore, we should summarize and compare these prescriptions, find out their similarities and differences, and seek common ground while reserving differences. For example, Wuling Powder and Zhu Ling Decoction, both of which are Poria, Polyporus and Alisma orientalis, have the function of promoting diuresis and eliminating dampness, and are mainly used to treat the syndrome of unfavorable urination. The difference is that there are cassia twig and Atractylodes macrocephala in Wuling powder, which warms the yang, strengthens the spleen and turns qi into water, mainly indicating exterior syndrome, and the water stops inside; Zhu Ling decoction is composed of talc and colla corii asini, which has the effects of clearing away heat and nourishing yin, moistening dryness and promoting diuresis, and is mainly used to treat damp-heat syndrome and yin injury caused by pathogenic heat. Some prescriptions, although belonging to different chapters, have the same composition, but also have their own characteristics. We can compare different chapters, seek differences from the same, and analyze differences from the same, such as Guizhi Decoction and Xiaojianzhong Decoction, Xiaoqinglong Decoction and Linggan Wuwei Jiangxin Decoction, Linghao Qingdan Decoction and Wendan Decoction, Daochi Powder and Xiaoji Decoction. Some prescriptions with similar indications have certain differences in etiology, pathogenesis and specific symptoms, which can also be compared and differentiated to strengthen memory. For example, prescriptions for chronic diarrhea and dysentery include Zhenren Yangzang Decoction, Shen Si Pill, Buzhong Yiqi Decoction and Wu Mei Pill. In a word, there are many contents that can be compared between prescriptions. Authors usually make charts with multimedia courseware, so that students can see at a glance and the effect is vivid and intuitive. 6 Connecting with clinic and consolidating memory Chinese medicine itself is a highly practical applied discipline, and the purpose of learning prescription science is to apply what you have learned. Therefore, discussing some modern applications in combination with the indications of prescriptions and their own clinical experience in teaching can cultivate students' ability to analyze, apply and formulate prescriptions in clinical practice, understand the law and flexibility of prescription application, and broaden students' horizons. At the same time, we can choose medical records according to the functional indications of the prescriptions we have learned, arrange students to discuss for a certain period of time, further deepen the impression and understanding of the prescriptions, consolidate the contents of memory, activate the classroom atmosphere through the analysis and discussion of specific cases, and gradually lead students' thinking to the clinic, which can improve students' analytical and dialectical thinking ability, cultivate students' ability to comprehensively apply what they have learned and solve practical problems, and lay a good foundation for future clinical practice. The teaching practice of Prescription Science proves that properly interspersed with memory teaching can not only inspire students' scientific thinking and develop their intelligence and memory potential, but also make students no longer worry about the difficulty of memorizing prescriptions, avoid the boring and single mode of teaching of Prescription Science, enhance students' interest in this subject, consolidate their professional ideas and obviously improve the teaching effect.