第1篇:开放性练习题的教学感想
开放性练习题的教学感想
教学要有创新,在新授课中要高效又要有创新,同样在练习课中灵活的运用并处理问题,也是非常重要的。但是,在习题的处理过程中不要任意拔高。我常想把一个题经过处理能使之收到更好的效果,但并非每次的效果都能如愿。
这是月假复课后的第一节练习课,练习内容是二年级下册数学有关倍的问题解决。这节练习课,我准备没有很充分,也没有仔细的去钻研每一题可以进行哪些思维训练。所以在练习中就出现了拔高的现象,从而导致结果不如意,让我的自作聪明适得其反!
接下来说说我在这堂课中的一点表现:
练习中我比较注重学生对问题的提出,所以我鼓励学生提出问题,但我犯了严重的错误,其中有一题我强调希望学生提出有关除法的问题,却不提倡提出用不同方法计算的问题,即相当于把一个开放的问题转变成了一个局限性的问题。根据现今的教育方向,要多注重培养学生的创新思维能力。我想即使是一个有局限的问题,在不改变题意的前提下也要激发学生从不同的角度去思考,用多种方法解决问题,从而看待问题的思维越来越广阔,越来越灵活。
那么,一个灵活的题型岂不是可以更好的运用?可以让学生发挥得更淋漓尽致,也可以使这个习题得到最好的运用,达到最佳目标。可惜今天我却把这样一个习题进行了一个不好的处理。
练习十二的第4题中第(2)小题:请你给每一行的0图上两种不同的颜色,根据你涂的颜色,你能提出哪些问题?
按题目意思来看,涂法有17种,而提出的问题则会更多,加、减、乘、除计算的问题皆可。但我进行了这样的限制:请你在每一行涂上两种不同的颜色,且要能根据你涂的颜色提出用除法计算的问题。这就使得学生的思路虽很直白,但不显得灵活了,学生的思维受到了限制。我原本是想要节约时间,但事实却相差甚远。
“首先,要使得两种颜色的圆成倍数关系。”对于大部分学生来说,太难以想到要先弄清楚不同颜色圆个数的关系,只会一个一个去套取,这还是踏实的认真的学生。这个过程中学生需要耗去较长的时间,成功感也会降低。如果某某学生套取几个还不成功,就有可能放弃了,反而失去了本题的意义,也打击了学生的学习积极性。
我班周汉财就是这样的,他本来就是重读的学生,因成绩一直不理想,学习兴趣也低,所以学习状况一直很低迷。一开始听到只要涂色再列出除法算式,一下子就有了兴趣,想想涂色就好比他喜欢的画画,似乎也不需要动脑筋,涂好后大的数除以小的数即可。兴致来了就开始操作,第一行的涂色工作完成了:随手涂5个红色圆,13个蓝色圆,然后开始列除法算式:13÷5=?结果发现商求不出来,怎么背口诀都不对,兴趣一下子降下来,思维也停下来了,周汉财在这个题中就这样戛然而止!
再看看好动的易双,在经历了周汉财同样的遭遇后,主动放弃了这一涂法,接着涂6个红色圆,12个蓝色圆,列式为:12÷6=2.有了这一成功步骤,兴致又来了,又继续下去,所幸易双坚持下去了。
这些事学生自主探究的小插曲。我吸取了刚才限制学生发挥的教训,所以在学生汇报的时候,我决定只要学生说的正确即可。像林婧波她涂的是红色圆和蓝色圆各9个,一般第一反应的列式为9÷9=1,而她的是将18个圆平均分成9个一份,可以分成几份?列式为:18÷9=2。只要问题是正确的`就值得鼓励,所以在学生还不太认可的时候,我及时的表扬了林婧波,表扬她有和别人不同的思维。此刻,学生的思维有活跃起来了,他们知道老师要的是除法计算的问题,而不只是倍的问题。从这里也看出了我们的学生是多么的乖,他们也是在寻找着老师最想要的答案,他们最希望得到老师的鼓励和表扬!我又何必吝啬?
想想如果当时我没有那么一个强调,而让学生自由发挥,自由涂色和提问,学生该摸索出多少种方法啊?而提问题的方法多样性能够让学生更聪明,思维更活跃,兴趣也会越来越高。
这节课我可以直接让学生根据自己的思路探究涂色方法,再总结规律,红色分别涂1、2、3、…17个,蓝色依次涂17、16、15、…1个,根据不同涂色情况可以提出不同的问题。在进行归纳:哪些涂色方法可以提出除法计算的问题?让学生明白数字间的一个倍数关系。这样进行总结后,以后再提出除法计算的问题,学生自然就会想到要注意数字间的倍数关系。
这次的失败在于我把简单有趣的问题进行处理后,变成了一道复杂无趣的目的性太强的问题。可见我们在对问题进行处理时,一定要考虑清楚所有的生成可能性,再根据生成考虑教法与学法。
无论是新授课,还是复习课,练习都是非常重要的,数学本身又注重练习,所以在备课时一定要考虑到:关注全体学生已有的知识经验和能力水平,不要拔高,也不要低估学生的能力;明确练习的目的和想要达到的效果;给学生表现的机会,练习的设计从易到难,要有梯度,人人都能获得或多或少的成功,提高学生学习的兴趣;练习题型不能空洞,要能吸引住学生自主探究,来源于生活则更好;善于捕捉练习时的动态生成,及时的发现问题、解决问题。
第2篇:高考英语开放性作文练习题
高一英语语法训练
1.---Are you coming to Jeff’s party?
---I’m not sure.I _____ go to the concert instead.A.mustB.wouldC.shouldD.might
2.Bob was late again.The reason _____ the teacher didn’t know was _____ he had to take care of his sick mother at home.A.why;becauseB.which;thatC.why;thatD.which;because
3.There was an _____ look on his face when the actre appeared.A.excitedB.exciteC.excitingD.excitement
4.---Why did you go back to the shop?
---I left my friend ____ there.A.waitingB.to waitC.waitD.waits
5.Kathy ____ a lot of Spanish by playing with the native boys and girls.A.picked upB.took upC.made upD.turned up
6.______ in her best skirt, the girl tried to make herself _____ at the party.A.Dreed;noticedB.Dreing;noticing
C.Dreing;noticedD.Dreed;noticing
7.I have never heard such a more ____ story, which really_____ me.A.interesting;excitesB.interesting;excites
C.interesting;is excitedD.interested;is exciting
8.I had hoped to go into the fire to fetch the expensive box, but my roommate told me____.A.don’t goB.not goC.not toD.not to go
9.The sun was shining brightly,______ everything there _____ more beautiful.A.making;lookB.to make;looked
C.and made;lookingD.and making;to be looked
10.---Do you know where David is? I couldn’t find him anywhere.---Well.He _____ have gone far—his coat’s still here.A.shouldn’tB.mustn’tC.can’tD.wouldn’t
11.The carele man received a ticket for speeding.He ___ have driven so fast.A.can’tB.mustn’tC.wouldn’tD.shouldn’t
12.Great changes ______ in the city, and a lot of factories _________.A.have been taken place;have been set up B.have taken place;have been set up
C.have taken place;have set upD.were taken place;were set up
13.---How is the old man now?
---Sorry, he _____ though they did all they could to save him.A.was deadB.had diedC.has been deadD.died
14.----Hi, Tracy, you look tired.----I am tired.I ______ the living room all day.A.paintedB.had paintedC.have been paintingD.have painted
15.They______ every means, but the engine _____ work.A.tried;couldn’tB.have tried;won’tC.tried;won’tD.have tried;can’t
16.When I got to the cinema, the film_____ for half an hour.A.was already begun;B.had already begun
C.has been onD.had been on
17.The new dictionaries are very useful.They _____ well and _____ already.A.sell;have been sold outB.sold;had sold out
C.sell;sell outD.are sold;have been sold out
18.----Have you got enough desks?
----No, I need ______.A.more threeB.more three chairsC.another threeD.other more three
19.----Yesterday’s concert was wonderful, wasn’t it?
----Yes, but I have never heard such a _____ one.A.more excitingB.more excitedC.most excitingD.most excited
20.Sorry, I’m late.I ____ have turned off the alarm clock and gone back to sleep again.A.mightB.shouldC.canD.will
21.My sister met him at the Grand Theater yesterday, so he ______ your lecture.A.couldn’t have attendedB.needn’t have attended
C.mustn’t have attendedD.shouldn’t have attended
22.Robert is said _____ abroad, but I don’t know which country he studied in.A.to have studiedB.to studyC.to be studyingD.to have been studying
23.It was not ______ she took off her dark glaes ______ I realized she was a famous film star.A.when;thatB.until;thatC.until;whenD.when;when
24._______ can be stored in and taken out of a computer whenever ________.A.Information;neededB.An information;needed
C.Informations;neededD.Information;they are needed
25.Is this the way _____ to the lecture hall?
A.leadsB.leadingC.that leadD.led
26.China is _______, if not larger than Australia______ area.A.very large;onB.as large as;inC.so large as;onD.too large;in
27.The girl witneed _____ the man burst into the bank on a dark night the week before last.A.to seeB.seeingC.to seeingD.to having seen
28.Go and get your coat.It’s ______ you left it.A.thereB.where thereC.the whereD.where
29.I asked him to come at seven o’clock, but he ______.It’s already eight o’clock.A.didn’t show offB.didn’t show up
C.hasn’t shown upD.hasn’t shown off
30.As time went on, the police _____ their search for the _____ student.A.stepped up;miedB.stayed up;losing
C.stepped up;miingD.stayed up;lost
31.What she ____ is really ____.Now her teacher is ____ her.A.does;disappointing;disappointed at
B.has done;disappointing;disappointed about
C.does;disappointed;disappointed about
D.has done;disappointing;disappointed with
32.The teacher asked the student to make up a story______ a photo and act it out.A.based onB.basing onC.be basing onD.based in
33.From the very beginning, I _____ that we were doing the right thing.A.was convincingB.was to convince C.was convincedD.had to convince
34.Go and help your mother, who ______ all the dishes alone in the kitchen.A.has washedB.washedC.washesD.has been washing
35.We’re almost always on short stays _______ reason we don’t use much time at the museums.A.for whoseB.for whatC.for whichD.due to that
36.We’ve been looking at houses but haven’t found _____ we like yet.A.itB.thatC.whichD.one
37.Tom and Jerry, ______ careful when you ride your bicycles in the busy street.A.should beB.beC.areD.must be
38.He left word with his secretary that she should keep it ___ secret for ___ moment.A.the;theB.the;aC.a;/D.a;the
39.---what do you think of the furniture on exhibition?
---Well, great!But I don’t think much of ____ you bought.A.the oneB.itC.whatD.which
40.The girl who is kept _______ the nurse has ______ ill since last week.A.in the charge of;fallenB.in charge of;been
C.in the charge of;beenD.taken charge of;fallen
41.The ______ expreion on his face suggested that the film was so ______.A.frightening;frighteningB.frightened;frightened
C.frightening;frightenedD.frightened;frightening
42.I don’t skate now, but I ______ when I was a child.A.was used toB.used toC.usedD.used to do
43.---Did you buy a dre yesterday?
---No._____ I liked the color, I didn’t like the style.A.SinceB.IfC.WhileD.When
44.All the books that have been contributed by the neighborhood are said _____to the city public library the other day.A.being sentB.to be sentC.having been sentD.to have been sent
45.– Hi, Tracy, you look tired.---I am tired.I____ the living-room all day.A.paintedB.had paintedC.have been paintingD.have painted
46.Reading is an experience quite difficult from watching TV;there are pictures______ in your mind instead of before your eyes.A.to formB.formC.formingD.having formed
47.The pilot asked all the paengers on board to remain ______ as the plane was making a landing.A.seatB.seatingC.seatedD.to be seating
48.It _______ long before we ______ the result of the experiment.A.will not be;will knowB.is;will know
C.will not be;knowD.is;know
49.How can you poibly mi the news? It _____ on all day long.A.has beenB.had beenC.wasD.will be
50.All morning as she waited for the mecical report from the doctor, her nervousne ______.A.has grownB.is growingC.grewD.had grown
答案:
1-5DBAAA6-10ABCAC11-15DBDCB
16-20BACAA21-25CABAA26-30BDDCC31-35DACDC36-40DBDCC41-45DBCDC46-50CCCAC
第3篇:“开放性教学”之我见
“开放性教学”之我见 吴江市实验小学
盛跃忠
随着新课程的推进,教师在教育教学上发生了不少的改变,都努力使自己成为真正的育人之师,而不是解题机器制造者,努力使学生成为学习的主体,发挥他们的学习主体性,积极性,从而变“要我学”为“我要学”。在这种课程改革形势下,一种新的教学思想理念出现并不断深入教师之心,成为众多教师所推崇的教学方法——开放性教学。
为什么开放性教学会这么受教师的欢迎?首先,开放性教学,它摒弃了传统教学中死读书,读死书的思想,尊崇了新课程所提出的教学理念:“课堂教学必须突出以‘人的发展为本’,也就是在教学的全过程中使学生积极主动地参与学习”。其次,开放性教学,它能很好地调动学生的学习积极性和主动性,燃起学生智慧的火花,使学生更好地投入到学习生活中去。第三,开放性教学,它使教师的课堂教学
第4篇:对开放性考察的感想
对开放性考察的感想
教育评价与考试制度的改革是新课程改革的内容之一。学习生物应该而且能够为造就现代社会所需要的一代新人发挥重要作用,工具性与人文性的统一是语文课程的基本特点。面对社会发展的需要,生物必须在评价目的和方法上进行系统的改革,开放性考试适应生物课改的要求,对于学生的发展有一定的促进作用。
目前,我国的基础教育课程改革正处在一个关键时期。第三次全国教育大会以来,全面普及、巩固、提高九年义务教育和全面推进素质教育已成为共识,但素质教育的全面推进在实施过程中碰到不小的阻力,其中之一就是陈旧的考试制度已经不适应时代的要求。特点在于重视熏陶感染作用,注意教学内容的价值取向,尊重学生的学习情感体验,培养学生的实践能力,提高学生的品德修养和审美情趣,具有良好的个性和健全的人格。考试是对学生进行评价的手