工作就用美篇工作版","guide_search_desc":"海量模板范文,一键做同款 工作就用美篇工作版","img_beautify_switch":0,"ad_free":0,"text_direction":"2","template":{},"container":{},"redirect":{"redirect_type":1,"img_url":false,"link_url":"/wap/downloadpage/backpage","button_bg_color":false,"button_desc":false,"redirect_desc":false},"edit_date_str":"更新于 2020-02-10","current_time":1740169442,"font_name":"","rcmd_meipian":0,"hide_article_link":0,"from_wechat":false,"topk_keywords":[{"name":"十几","score":0.588282},{"name":"算式","score":0.347957},{"name":"减是","score":0.343528},{"name":"几加","score":0.343528},{"name":"推算","score":0.140106},{"name":"练习","score":0.138916},{"name":"减例","score":0.137411},{"name":"再算","score":0.137411},{"name":"破十法","score":0.137411},{"name":"被减数","score":0.137411}],"content":{"article_id":208607252,"content":[{"address":"","img_height":0,"img_url":"","img_width":0,"link":"","link_desc":"","text":" 同学们,今天老师为同学们准备了《十几减6、5、4、3、2》的预习学案。这是苏教版小学数学一年级下册第9-10页的内容,主要结合具体情境,在学会口算十几减9、8、7的基础上,运用推算的方法学习十几减6、5、4、3、2。","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"video_id":"","video_thumbnail":"","video_url":""},{"address":"","img_height":760,"img_url":"https://ss-mpvolc.meipian.me/users/34607417/a70bd000-44b5-11ea-8a41-e11f6ecfd70f__png.heic","img_width":812,"link":"","link_desc":"","text":"
","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"video_id":"","video_thumbnail":"","video_url":""},{"address":"","img_height":0,"img_url":"","img_width":0,"link":"","link_desc":"","text":"以下是微课指导学习:","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"video_id":"","video_thumbnail":"","video_url":""},{"address":"","img_height":0,"img_url":"","img_width":0,"link":"","link_desc":"","text":"例3通过创设小兔采蘑菇的情境,寓教于乐。学生在学习中要充分掌握求总数和求部分数两个类型的解决问题。
计算方法:
1.想加算减
例:11-6,想:6+( )=11 或
想减算减 11-5,由11-6=5 想 11-5=?
2.平十法(先计算得出10)
例:11-6,先算11-1=10,再算10-5=5.
3.破十法(先用10去减)
例:11-6,先算10-6=4,再算1+4=5.
破十法儿歌
退位减,我会算
十几减9,是几加1,
十几减8,是几加2,
十几减7,是几加3,
十几减6,是几加4,
十几减5,是几加5.
","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":3,"video_id":"","video_thumbnail":"https://ss-mpvolc.meipian.me/users/34607417/609d0020-44b6-11ea-8a41-e11f6ecfd70f__jpg.heic","video_url":"https://ss2.meipian.me/users/34607417/607999a0-44b6-11ea-8a41-e11f6ecfd70f.mp4"},{"address":"","img_height":396,"img_url":"https://ss-mpvolc.meipian.me/users/34607417/e8ebba30-44ba-11ea-8a41-e11f6ecfd70f__png.heic","img_width":774,"link":"","link_desc":"","text":"","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"video_id":"","video_thumbnail":"","video_url":""},{"address":"","img_height":692,"img_url":"https://ss-mpvolc.meipian.me/users/34607417/eb621160-44ba-11ea-8a41-e11f6ecfd70f__png.heic","img_width":508,"link":"","link_desc":"","text":" 【想想做做】让学生通过题组练习逐渐优化算法。除了依据加减关系推算,也可以依据其他运算规律推算。通过不同形式的练习,帮助学生逐步形成计算能力,提高计算的速度和准确性。","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"video_id":"","video_thumbnail":"","video_url":""},{"address":"","img_height":0,"img_url":"","img_width":0,"link":"","link_desc":"","text":"【当堂目标达成检测】
11-6= 12-6= 13-6= 14-6= 15-6=
【巧算“十几减6”的方法:把被减数个位上的数加“4”,就是十几减6的差。即减6个位加4。】
在⚪里填上“>”、“<”或“=”
13-6⚪8 14-5⚪7 6+7⚪14 11⚪19-9
13-5⚪8 11-6⚪6 4+8⚪13 7⚪11-4
在得数大于6的算式下面划“——”
14-8 13-4 12-3 11-7
16-8 17-9 15-9 14-5
","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"video_id":"","video_thumbnail":"","video_url":""},{"address":"","img_height":0,"img_url":"","img_width":0,"link":"","link_desc":"","text":" 【课后拓展练习】","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"video_id":"","video_thumbnail":"","video_url":""},{"address":"","img_height":542,"img_url":"https://ss-mpvolc.meipian.me/users/34607417/98ef9ba0-44c4-11ea-8a41-e11f6ecfd70f__png.heic","img_width":856,"link":"","link_desc":"","text":"解题过程:
先找关键句。“数字看错了,得到结果9,妈妈告诉他,结果大了5”。从这句话可以知道正确的结果比9小5,列算式:9-5=4。把4带入原来的算式中,可以用前面介绍的方法计算出被减数。列算式:4+9=13。正确的算式应该是:13-9=4.
你做对了吗?
","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"video_id":"","video_thumbnail":"","video_url":""},{"address":"","img_height":0,"img_url":"","img_width":0,"link":"","link_desc":"","text":"制作:芮叶晨","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"video_id":"","video_thumbnail":"","video_url":""}]},"ext":{"id":117815448,"article_id":208607252,"ip":"117.63.191.52","origin_status":0,"edit_from":0,"client_type":5,"password_v2":"","uv":1,"font_id":0,"title_style":"","rich_text_title":null,"gift_switch":1,"deleted_at":0,"recycle_expired_at":0,"share_with_nickname":0,"enable_watermark":0,"music_id":0,"music_source":-1,"_auto_update_time":"2022-06-09 15:27:54"},"extend":{"article_id":208607252,"enable_download":1}},"author":{"id":"34607417","nickname":"溧阳市外国语小学二年级组","head_img_url":"https://ss-mpvolc.meipian.me/users/34607417/eef80430-473d-11ea-b43d-85af9756c1aa.jpg","column_visit":69,"signature":"","favorite_count":0,"follow_count":0,"follower_count":29,"famous_type":0,"autoplay_music":1,"text_preference":2,"client_type":4,"reward_word":"如果喜欢我的作品,请打赏鼓励哦!","member_type":0,"wechat_id":"ojq1ttyVIleBuAaNbmzFBDb6x1yI","country":"China","province":"Jiangsu","city":"Nanjing","career":null,"birthday":0,"gender":0,"reg_time":1519467257,"e_id":"","bedge_img":"","label_img":"","review_level":1,"enable_reward_switch":false,"enable_water_mark_switch":0,"plainNickname":"溧阳市外国语小学二年级组","member_status":0,"member_img":"","ext":null,"phone_num":"156****6339","head_attach_img":null,"badge":null,"onlive":false,"qualification":null,"biz_info":{"is_biz_user":false,"share_domains":[]},"headwear":{"icon":"","animation":"","config":{},"param":{}},"cover_img_url":"","weibo_id":"","vwen_id":"","im_id":"","yx_im_token":"","last_visit_time":1648881130,"ip_address":"117.63.191.222","device_id":"53a968b0cc7547dcb9ee1011c55abe91","reviewer":0,"review_time":0,"account_state":0,"balance":0,"last_contribution_time":0,"member_expire_time":0,"member_qq_group":0,"web_has_login":0,"longtitude":"0.0000000","latitude":"0.0000000","last_client_type":1,"level":0,"province_user":"江苏","city_user":"江苏","user_id":34607417,"qq_id":"","apple_id":"","badge_img_url":"","reward_url":"https://www.meipian.cn/wap/reward/view/index.html?mask_id=2ntzddx6&author_user_id=34607417&article_title=%E4%B8%80%E5%B9%B4%E7%BA%A7%E4%B8%8B%E5%86%8C%E3%80%8A%E5%8D%81%E5%87%A0%E5%87%8F6%E3%80%815%E3%80%814%E3%80%813%E3%80%812%E3%80%8B%E9%A2%84%E4%B9%A0%E5%AD%A6%E6%A1%88","memo_name":""},"content":[{"address":"","img_height":0,"img_url":"","img_width":0,"link":"","link_desc":"","text":" 同学们,今天老师为同学们准备了《十几减6、5、4、3、2》的预习学案。这是苏教版小学数学一年级下册第9-10页的内容,主要结合具体情境,在学会口算十几减9、8、7的基础上,运用推算的方法学习十几减6、5、4、3、2。","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"video_id":"","video_thumbnail":"","video_url":""},{"address":"","img_height":760,"img_url":"https://ss-mpvolc.meipian.me/users/34607417/a70bd000-44b5-11ea-8a41-e11f6ecfd70f__png.heic","img_width":812,"link":"","link_desc":"","text":"
","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"video_id":"","video_thumbnail":"","video_url":""},{"address":"","img_height":0,"img_url":"","img_width":0,"link":"","link_desc":"","text":"以下是微课指导学习:","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"video_id":"","video_thumbnail":"","video_url":""},{"address":"","img_height":0,"img_url":"","img_width":0,"link":"","link_desc":"","text":"例3通过创设小兔采蘑菇的情境,寓教于乐。学生在学习中要充分掌握求总数和求部分数两个类型的解决问题。
计算方法:
1.想加算减
例:11-6,想:6+( )=11 或
想减算减 11-5,由11-6=5 想 11-5=?
2.平十法(先计算得出10)
例:11-6,先算11-1=10,再算10-5=5.
3.破十法(先用10去减)
例:11-6,先算10-6=4,再算1+4=5.
破十法儿歌
退位减,我会算
十几减9,是几加1,
十几减8,是几加2,
十几减7,是几加3,
十几减6,是几加4,
十几减5,是几加5.
","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":3,"video_id":"","video_thumbnail":"https://ss-mpvolc.meipian.me/users/34607417/609d0020-44b6-11ea-8a41-e11f6ecfd70f__jpg.heic","video_url":"https://ss2.meipian.me/users/34607417/607999a0-44b6-11ea-8a41-e11f6ecfd70f.mp4"},{"address":"","img_height":396,"img_url":"https://ss-mpvolc.meipian.me/users/34607417/e8ebba30-44ba-11ea-8a41-e11f6ecfd70f__png.heic","img_width":774,"link":"","link_desc":"","text":"","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"video_id":"","video_thumbnail":"","video_url":""},{"address":"","img_height":692,"img_url":"https://ss-mpvolc.meipian.me/users/34607417/eb621160-44ba-11ea-8a41-e11f6ecfd70f__png.heic","img_width":508,"link":"","link_desc":"","text":" 【想想做做】让学生通过题组练习逐渐优化算法。除了依据加减关系推算,也可以依据其他运算规律推算。通过不同形式的练习,帮助学生逐步形成计算能力,提高计算的速度和准确性。","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"video_id":"","video_thumbnail":"","video_url":""},{"address":"","img_height":0,"img_url":"","img_width":0,"link":"","link_desc":"","text":"【当堂目标达成检测】
11-6= 12-6= 13-6= 14-6= 15-6=
【巧算“十几减6”的方法:把被减数个位上的数加“4”,就是十几减6的差。即减6个位加4。】
在⚪里填上“>”、“<”或“=”
13-6⚪8 14-5⚪7 6+7⚪14 11⚪19-9
13-5⚪8 11-6⚪6 4+8⚪13 7⚪11-4
在得数大于6的算式下面划“——”
14-8 13-4 12-3 11-7
16-8 17-9 15-9 14-5
","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"video_id":"","video_thumbnail":"","video_url":""},{"address":"","img_height":0,"img_url":"","img_width":0,"link":"","link_desc":"","text":" 【课后拓展练习】","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"video_id":"","video_thumbnail":"","video_url":""},{"address":"","img_height":542,"img_url":"https://ss-mpvolc.meipian.me/users/34607417/98ef9ba0-44c4-11ea-8a41-e11f6ecfd70f__png.heic","img_width":856,"link":"","link_desc":"","text":"解题过程:
先找关键句。“数字看错了,得到结果9,妈妈告诉他,结果大了5”。从这句话可以知道正确的结果比9小5,列算式:9-5=4。把4带入原来的算式中,可以用前面介绍的方法计算出被减数。列算式:4+9=13。正确的算式应该是:13-9=4.
你做对了吗?
","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"video_id":"","video_thumbnail":"","video_url":""},{"address":"","img_height":0,"img_url":"","img_width":0,"link":"","link_desc":"","text":"制作:芮叶晨","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"video_id":"","video_thumbnail":"","video_url":""}],"mark":0,"gift":{"icon":"https://ss2.meipian.me/app/article_gift_flower_icon_v2.png","amount":0,"mix_icon":"","mix_persent":0,"display":1},"topic":{"has_vote":0,"vote_rank":0,"vote_count":0},"visitor":{"is_share":false,"visitor_id":0,"visitor_user_id":null,"from":null,"channel":null,"theme":null,"in_app":false,"from_web":false,"self_view":false,"timestamp":null,"sign":null,"is_from_app_launch":null,"show_praise":null,"praised":null,"wechat_sign":null,"token":null,"password_v2":null,"visitor_open_id":null,"share_depth":"","visitor_union_id":null,"ua_source":"web","mpuuid":"","isFan":0,"relation_type":0,"member_status":0,"member_img":"","head_attach_img":"","headwear":null,"request":{"attributes":{},"request":{},"query":{},"server":{},"files":{},"cookies":{},"headers":{}},"is_new_guest":0,"first_share_uid":0,"risk_cheat_info":"","is_cheat_risk":false,"page_visit_id":"PC_88456954267b8e0e2996369.64786282","is_good":null,"auth_url":null,"from_auth_callback":0},"watermark":"?watermark/3/image/aHR0cDovL3N0YXRpYzItc3JjLml2d2VuLmNvbS9sb2dvd2F0ZXIucG5n/dy/50/text/QCDmuqfpmLPluILlpJblm73or63lsI_lrabkuozlubTnuqfnu4Q=/fontsize/320/dx/10/dy/30/fill/I0ZGRkZGRg==/text/576O56-H5Y-377yaMzQ2MDc0MTc=/fontsize/320/dx/10/dy/10/fill/I0ZGRkZGRg=="};
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