【正文】 在教學(xué)時(shí)，要把握好每個(gè)環(huán)節(jié)，充分發(fā)揮學(xué)生為主體、教師為主導(dǎo)、練習(xí)為主線、發(fā)展智力培養(yǎng)能力為主攻目標(biāo)的教學(xué)原則，以適應(yīng)課程改革的需要。仔細(xì)驗(yàn)算。還要審運(yùn)算順序，明確先算什么，后算什么,能簡(jiǎn)便就簡(jiǎn)便，做題前要做到心中有數(shù)。三、克服粗心,培養(yǎng)習(xí)慣,讓學(xué)生說:”我真的能行”.我從教學(xué)實(shí)踐總結(jié)出：缺乏認(rèn)真的學(xué)習(xí)態(tài)度和良好的學(xué)習(xí)習(xí)慣，是數(shù)學(xué)計(jì)算容易出錯(cuò)誤的主要原因。我在教學(xué)中,將易混易錯(cuò)的題目放在一起，讓學(xué)生區(qū)分比較，通過有目的的練習(xí),使學(xué)生糾正錯(cuò)誤以提高學(xué)生的辨析能力，并及時(shí)評(píng)價(jià)學(xué)生的作業(yè)，糾正錯(cuò)誤。合理訓(xùn)練（1）口算天天練。全方位引導(dǎo)。由此，學(xué)生審題比以往認(rèn)真了，對(duì)題目的特點(diǎn)分析比以前仔細(xì)了，并能靈活利用有關(guān)定律、法則，找出解題規(guī)律，學(xué)習(xí)的興趣增強(qiáng)了。怎樣提高學(xué)生的計(jì)算能力呢？下面我從自己這幾年的教學(xué)反思中淡自己的幾點(diǎn)看法以。總之，培養(yǎng)學(xué)生計(jì)算能力是數(shù)學(xué)教學(xué)的一項(xiàng)重要任務(wù)。學(xué)生作完題后，再一次校對(duì)計(jì)算過程的準(zhǔn)確性，做到不漏不錯(cuò)。我認(rèn)為這是計(jì)算正確的首要條件, 審題要審數(shù)字和符號(hào)，并觀察它們之間有什么聯(lián)系。重視書寫。教師故意將學(xué)生作業(yè)中的典型錯(cuò)誤板書出來讓學(xué)生指出錯(cuò)誤之處，說明產(chǎn)生錯(cuò)誤的原因，并改正過來。練習(xí)的形式多種多樣,例如:奪紅旗、對(duì)抗賽、接力賽、口算游戲等。改變過去計(jì)算教學(xué)就是學(xué)生“算”的方法，讓學(xué)生充分地“說”,說自己的思維過程，并給與適當(dāng)?shù)闹笇?dǎo),交給學(xué)生良好的思維方法。這樣，既提高了學(xué)生的計(jì)算能力，又培養(yǎng)了學(xué)生的競(jìng)爭(zhēng)和團(tuán)隊(duì)精神。由此，學(xué)生審題比以往認(rèn)真了，對(duì)題目的特點(diǎn)分析比以前仔細(xì)了，并能靈活利用有關(guān)定律、法則，找出解題規(guī)律，學(xué)習(xí)的興趣增強(qiáng)了。小學(xué)生計(jì)算能力的高低，主要表現(xiàn)在計(jì)算得是否正確、迅速和靈活，也就是平常所說的“又對(duì)、又快、又巧”。3, diligently is a kind of habit, is also a kind of whether subject requirement, all students are required to have to do, gradually to develop students39。t miss your job”, I can39。這是快速、準(zhǔn)確計(jì)算的關(guān)鍵。由于書寫不規(guī)范而造成計(jì)算錯(cuò)誤的現(xiàn)象屢見不鮮，如由于把“5”連筆寫，計(jì)算下一步時(shí)就誤看成了“8”；把“7”潦草地寫成了“1”，而造成計(jì)算結(jié)果錯(cuò)誤。Ready to buy how many pieces of goods, also need to statistics and putation, so paying conscious attention to mathematics education to along with the parents to buy food, pay special attention salesman is how to quickly calculate the learned at the same time, also want to use the methods of estimation, qiao is help to calculate a calculate, in order to improve their puting 、養(yǎng)成教育不容忽視良好的習(xí)慣，直接影響著計(jì)算的速度和準(zhǔn)確率。生活中處處有數(shù)學(xué)，如上街購買衣物，大約需要帶多少錢，需要估算；準(zhǔn)備購買多少件物品，也需要統(tǒng)計(jì)和計(jì)算，所以，要教育學(xué)生留意身邊數(shù)學(xué)。Mathematics es from life and serves life, and the calculation is the important means to solve the problem of real 、呈現(xiàn)方式生活化。如計(jì)算人數(shù)、租車數(shù)量、鋪地買磚等，都必須是整數(shù)，且得采用“進(jìn)一法”；用鐵皮做鐵盒，鐵盒必須是整數(shù)，且得使用“去尾法”。如：1, the approximate the actual calculation, according to the number two at the same time for large or for small at the same time, or a big one for small forecast, so that verbal arithmetic is process, because the student39。 thinking more flexible, but also for the cultivation of the students39。同時(shí)，加強(qiáng)估算，可以加深學(xué)生對(duì)數(shù)字的認(rèn)識(shí)，促進(jìn)數(shù)感的培養(yǎng)，增強(qiáng)應(yīng)用數(shù)學(xué)的意識(shí)，提高解決實(shí)際問題的能力。t know why”, at the same time cultivate students39。提倡算法多樣化，也要注意方法的優(yōu)化，對(duì)于學(xué)生想出的每一種正確方法都給予肯定，說服學(xué)生放棄自己的落后繁瑣觀點(diǎn)，去遵循優(yōu)秀、簡(jiǎn)潔的方法，這樣才能使自己的思維能力不斷提高。因此，教師必須充分備課，選擇最優(yōu)方案，以期達(dá)到良好的教學(xué)效果。81000+125409 * 125 = 408 * 125 + 125 = 408 present 8 x 1000 + 125還有一些除法試商法：差數(shù)試商法、同頭無除商八九法（當(dāng)被除數(shù)和除數(shù)最高位上的數(shù)字相同時(shí)，俗稱“同頭”，被除數(shù)的前幾位比除數(shù)小，且除數(shù)與被除數(shù)次高位上的數(shù)的差不超過最高位時(shí)，可直接用八與九試商）、中數(shù)試商法、折半試商法等等，這些都是學(xué)生快算所必須掌握的基本方法。如：一個(gè)數(shù)與“11”相乘，“兩邊一拉，中間一加，滿十向前一位進(jìn)一”；一個(gè)數(shù)與2125相乘，都可以運(yùn)用巧算方法：(2)memory and some monly used data coincidence counting addition and subtraction, multiplication table within 20, 120 square number, etc., require students to memorize and to the point of blurt the same time, often teach students some clever calculate way, also can make its calculation speed is greatly as: is multiplied by a number from “11”, “on both sides of a pull, a middle, ten a into a” forward。(1)using 35 minutes daily oral the teaching, I every day in the classroom use of 35 minutes oral training, or ShiSuan or listen to calculate, or, in the case of a homework to copy one or two off type calculation problem, marking and feedback in time every day, gradually improve the students39。因此，要提高小學(xué)生的計(jì)算能力，就必須從強(qiáng)化口算能力抓起，把口算訓(xùn)練當(dāng)作一項(xiàng)常規(guī)工作來抓。9247。Number sense, it with the music of the “music” and “beauty” of art, maths has “number sense”.In the teaching, lets the student to observe, from the view of mathematics understanding things around, using mathemat