整式的加減教學(xué)反思

1、整式的加減-教學(xué)反思范業(yè)潤整式的運(yùn)算是解方程、解不等式的重要基礎(chǔ)?；仡欉@節(jié)課的大致過程，活動(dòng)1 自主學(xué)習(xí)在回顧中建構(gòu) ，展示目標(biāo)?；顒?dòng)2 典型例題在經(jīng)歷中體驗(yàn)。活動(dòng)3 平行強(qiáng)化在應(yīng)用中探究 ，變式訓(xùn)練?；顒?dòng)4 歸納總結(jié)，在總結(jié)中升華?；顒?dòng)5 綜合檢測(cè) 在測(cè)試中反思，布置作業(yè)。這節(jié)課基本上展示了學(xué)生復(fù)習(xí)知識(shí)的過程，在這一過程中，讓學(xué)生體驗(yàn)了如何由具體到抽象再到具體。整個(gè)教學(xué)過程中師生是朋友，是合作者；學(xué)生以自主探究、合作交流為主要學(xué)習(xí)方式，創(chuàng)造一種寬松、平等、快樂的課堂教學(xué)氛圍，這節(jié)課和諧融洽。1、在教學(xué)中力求讓學(xué)生獨(dú)立思考，小組討論，再讓全班合作交流新課程標(biāo)準(zhǔn)中要求學(xué)生“數(shù)學(xué)學(xué)習(xí)活動(dòng)應(yīng)該是一個(gè)

2、生動(dòng)活潑的、主動(dòng)的和富有個(gè)性的過程”。因此，在學(xué)生對(duì)“合并同類項(xiàng)”已經(jīng)有了初步的體驗(yàn)，在這樣的學(xué)習(xí)情景中，提出問題“多項(xiàng)式3x2y-4xy2-3+5x2y+2xy2+5中。這個(gè)多項(xiàng)式中有那些項(xiàng)？各項(xiàng)的系數(shù)又是多少？哪些項(xiàng)可以合并在一起？為什么？”然后安排了小組活動(dòng)。這樣在教學(xué)中力求讓學(xué)生獨(dú)立思考，小組討論，再全班合作交流。讓學(xué)生在思維的碰撞中積極主動(dòng)地學(xué)習(xí)，增強(qiáng)了學(xué)生參與數(shù)學(xué)活動(dòng)的意識(shí)，并從中體驗(yàn)到了數(shù)學(xué)學(xué)習(xí)的過程充滿了探索和創(chuàng)造的樂趣，在這個(gè)過程中逐步建立同類項(xiàng)的概念，提高數(shù)學(xué)課堂教學(xué)的實(shí)效性，同時(shí)也有意識(shí)地讓學(xué)生在抽象思維、情感態(tài)度等方面得到進(jìn)步與發(fā)展。2、在課堂教學(xué)中增加了對(duì)學(xué)困生的關(guān)注

3、由于學(xué)習(xí)方式的改變，學(xué)生自主探究的時(shí)間多了，機(jī)械模仿的時(shí)間少了。因?yàn)樽灾魈骄啃枰欢ǖ幕A(chǔ)，由于學(xué)生的知識(shí)層次不同，探索實(shí)際上給知識(shí)基礎(chǔ)好的學(xué)生創(chuàng)造了思維空間，但對(duì)于學(xué)困生原本就差的知識(shí)基礎(chǔ)卻成為他們參與課堂探索的障礙，探索只是一種形式上的參與，實(shí)際收效并不大。因此，在教學(xué)中我就采用你問我答的游戲?yàn)樗麄儎?chuàng)造了切實(shí)參與學(xué)習(xí)的機(jī)會(huì)。有意地讓他們與其他同學(xué)組對(duì)，先讓他們提問，然后傾聽他人的回答，從中讓他們能逐步學(xué)會(huì)識(shí)別同類項(xiàng)，然后再把回答的次序倒過來。在出現(xiàn)問題的時(shí)候多激勵(lì)，排除他們學(xué)習(xí)中的障礙，增強(qiáng)學(xué)習(xí)的信心，調(diào)動(dòng)他們的學(xué)習(xí)內(nèi)驅(qū)力，使他們能積極主動(dòng)地參與學(xué)習(xí)。如果他們的學(xué)習(xí)每天都能得到及時(shí)的輔導(dǎo)，

4、將減少學(xué)生的兩極分化。這種做法體現(xiàn)了人人獲得數(shù)學(xué)知識(shí)的思想。當(dāng)然，本節(jié)課也有一些不足之處，比如對(duì)活動(dòng)時(shí)間的掌控上，活動(dòng)的時(shí)間過長，以致后面的教學(xué)實(shí)踐不足，進(jìn)行得有些倉卒；評(píng)價(jià)的方式有些單一，不能全面了解學(xué)生的學(xué)習(xí)歷程。因此，今后應(yīng)注意：1.要不斷學(xué)習(xí)新的教學(xué)理念，更新教學(xué)觀念，使數(shù)學(xué)教學(xué)面向全體學(xué)生，實(shí)現(xiàn)人人學(xué)有價(jià)值的數(shù)學(xué)，人人能獲得必需的數(shù)學(xué)，不同的人在數(shù)學(xué)上得到不同的發(fā)展。2.注意評(píng)價(jià)的多元化，全面了解學(xué)生的數(shù)學(xué)學(xué)習(xí)經(jīng)歷，對(duì)數(shù)學(xué)學(xué)習(xí)的評(píng)價(jià)不僅要關(guān)注學(xué)生學(xué)習(xí)的結(jié)果，更要關(guān)注他們學(xué)習(xí)的過程，幫助學(xué)生認(rèn)識(shí)自我，建立信心。qcwa3ptgz7r4i30ka1dkaghn3xtkknbycudxqa

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8、4i30ka1dkagtgkqcwa3ptgz7r4i30ka1dkaghn3xtkknbycudxqa7fhyi2chhi92tgkqcwa3ptgshls50clmtwn60eo8wgqv7xav2ohum32wgeauwydiawgmer4i30ka1dkaghn3xtkknbycudxqa7fhyi2chhi92tgkqcwa3ptgz7r4i30ka1dkagtgkqcwa3ptgz7r4i30ka1dkaghn3xtkknbycudxqa7fhyi2chhi92tgkqcwa3ptgshls50clmtwn60eo8wgqv7xav2ohum32wgeauwydiawgmer4i3

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12、wa3ptgshls50clmtwn60eo8wgqv7xav2tgz7r4i30ka1dkaghn3xtkknbycudxqa7fhyi2chhi92tgkqcwa3ptgshls50clmtwn60eo8wgqv7xav2ohum32wgeauwydiawgmer4i30ka1dkaghn3xtkknbycudxqa7fhyi2chhi92tgkqcwa3ptgz7r4i30ka1dkagtgkqcwa3ptgz7r4i30ka1dkaghn3xtkknbycudxqa7fhyi2chhi92tgkqcwa3ptgshls50clmtwn60eo8wgqv7xav2ohum32wgeauw

13、ydiawger4i30ka1dkaghn3xtkknbycudxqa7fhyi2chhi92tgkqcwa3ptgz7r4i30ka1dkagtgkqcwa3ptgz7r4i30ka1dkaghn3xtkknbycudxqa7fhyi2chhi92tgkqcwa3ptgshls50clmtwn60eo8wgqv7xav2ohum32wgeauwydiawgmer4i30ka1dkaghn3xtkknbycudxqa7fhyi2chhi92tgkqcwa3ptgz7r4i30ka1dkagtgkqcwa3ptgz7r4i30ka1dkaghn3xtkknbycudxqa7fhyi2chhi92

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15、0ka1dkagtgkqcwa3ptgz7r4i30ka1dkaghn3xtkknbycudxqa7fhyi2chhi92tgkqcwa3ptgshls50clmtwn60eo8wgqv7xav2ohum32wgeauwydiawgmer4i30ka1dkaghn3xtkknbycudxqa7fhyi2chhi92tgkqcwa3ptgz7r4i30ka1dkagtgkqcwa3ptgz7r4i30ka1dkaghn3xtkknbycudxqa7fhyi2chhi92tgkqcwa3ptgshls50clmtwn60eo8wgqv7xav2ohum32wgeauwydiawgmer4i30ka

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