标签:结束 电脑 ref org 建议 eal .com each for
U
https://code.org/curriculum/course2/2/Teacher 原文 (翻译 clock_JZ)
不用电脑的活动
生活中的算法: 纸飞机
课程时间: 20 分钟 该时间只包括基本活动. 时间充裕的情况下,可以加入课前介绍及课后思考和拓展
课程概述
这节课,我们通过制作纸飞机,把日常生活的内容和算法概念结合起来。 目标是让学生们能够开始建立编程环境和日常环境的相互关系。
教学计划
开始 - 15分钟
1) 概述
2) 单词
3) 每天做什么
活动: 生活中的算法
- 20分钟
4) 生活中的算法: 纸飞机
总结 - 5 分钟
5) 交流总结 – 我们学到了什么?
测验 - 10 分钟
6) 生活中的算法
课程目标
学生会学到:
- 将日常行为具体化,名称话。
- 将大的事情分解为多个小的任务。
- 合理安排各个小任务的逻辑顺序。
备课指导
材料准备,课程预习
学生
- 折飞机的纸张
- 工作表,生活中的算法: 纸飞机
- 评估表: 日常算法
- 剪刀
- 胶水
老师
- 看课程视频
- 熟悉课程
- 工作表,生活中的算法: 纸飞机
- 给每个学生打印:日常算法评估表
开始 (15 分钟)
1) 复习
借用这个机会来复习一下上节课学习的内容。 建议通过提问题和分组学生讨论两者交互进行。
你可以参考如下问题:
- 上节课我们学习了什么内容?
- 如果有时间希望还能做些什么?
- 对上节课的内容有什么问题吗?
- 你最喜欢上节课的哪个环节?
提示
结束时,通过提问“最喜欢的部分”可以给学生留下一个积极的印象, 增加接下来活动的积极性。
2) 单词
复习一个重要的词汇:
Algorithm – 发音: 阿尔-勾-锐-思木
完成一个任务需要的详细方法的描述。(计算方法,简称算法)
3) 我们每天做什么事情
- 问一下大家,早上来上学前都做了什么准备
- 把答案写在黑板上。
- 可能的话,在每个答案前面写上数字,表示事情发生的顺序。
- 如果学生的答案很无序, 叫他们帮你组织好顺序。
- 分别指出顺序混乱的地方和有序的地方。
- 告诉学生,每天做的事情都可以转化成算法
- 让我们来做一个更有趣的,折纸飞机。
活动:
(20 分钟)
提示
根据学生的接受程度,决定让他们独立完成还是分小组进行。
- 你可以用算法来描述生活中的每一件事。今天,我们写一种可以帮助大家折纸飞机的算法。
方法概述:
- 从工作表格上剪下折纸飞机的每一步。
- 一起从九个选项中找出正确的六个。
- 把那六个按正确的顺序黏贴到另外一张纸上。
- 把完成的算法和别的小组交换,让他们照算法来折纸飞机。
- 如果害怕纸飞机飞行中伤到学生, 建议把头部向内折叠,或者剪掉并用胶带包裹锋利边缘。
提示
如果对学生来说,确定纸飞机的每一步太难。先指导他们选出正确六步,再分组练习。
总结(5 分钟)
5) 简短讨论: 这节课学到了什么?
- 有多少人可以根据同学的算法折出纸飞机?
- 这个练习还有什么没有提到的?
- 你能把算法改的更好一点吗?
- 如果算法只有一步:“折纸飞机”?
- 这个活动哪个部分你最喜欢?
小测验(10 分钟)
- 仔细讲解题目要求,并让学生独立完成。
- 经过上面的活动,学生应该觉得这个测验很熟悉。
拓展知识
下面的活动可以促进所学习知识的消化。可以作为课外练习。
Go Figure
- 给班级分组。
- 每个小组给出几步详细方法,来完成一件任务。
- 把大家集合一起,选一组来展示他们的算法,同时不能让别人知道具体要完成的任务。
- 让大家猜一猜这个算法是要做什么?
关联知识点和一些信息(和课程无关,不翻译)
ISTE Standards (formerly NETS)
- 1.a - Apply existing knowledge to
generate new ideas, products, or processes
- 1.c - Use models and simulation
to explore complex systems and issues.
- 2.b - Communicate information and
ideas effectively to multiple audiences using a variety of media and
formats.
- 2.d - Contribute to project teams
to produce original works or solve problems.
- 4.b - Plan and manage activities
to develop a solution or complete a project.
- 6.a - Understand and use
technology systems.
CSTA K-12 Computer Science Standards
- CT.L1:3-03. Understand how to
arrange information into useful order without using a computer.
- CT.L1:6-01. Understand and use
the basic steps in algorithmic problem-solving.
- CT.L1:6-02. Develop a simple
understanding of an algorithm using computer-free exercise.
- CT.L1:6-05. Make a list of
sub-problems to consider while addressing a larger problem.
- CPP.L1:3-04. Construct a set of
statements to be acted out to accomplish a simple task.
- CPP.L1:6-05. Construct a program
as a set of step-by-step instructions to be acted out (e.g., make a peanut
butter and jelly sandwich activity).
- CT.L2-03. Define an algorithm as
a sequence of instructions that can be processed by a computer.
- CT.L2-06. Describe and analyze a
sequence of instructions being followed.
NGSS Science and Engineering Practices
- K-2-PS3-2. Use tools and
materials provided to design and build a device that solves a specific
problem or a solution to a specific problem.
- 3-5-ETS1-2 - Generate and
compare multiple possible solutions to a problem based on how well each
is likely to meet the criteria and constraints of the problem.
Common Core Mathematical Practices
- 1. Make sense of problems and
persevere in solving them.
- 2. Reason abstractly and
quantitatively.
- 3. Construct viable arguments and
critique the reasoning of others
- 6. Attend to precision.
- 7. Look for and make use of
structure.
- 8. Look for and express
regularity in repeated reasoning.
Common Core Math Standards
- 1.G.1 - Distinguish between
defining attributes versus non-defining attributes; build and draw shapes
to possess defining attributes.
- 2.G.3 - Partition circles and
rectangles into two, three, or four equal shares, describe the shares
using the words halves, thirds, half of, a third of, etc., and describe
the whole as two halves, three thirds, four fourths.
Common Core Language Arts
- SL.1.1 - Participate in
collaborative conversations with diverse partners about grade 1 topics and
texts with peers and adults in small and larger groups.
- SL.1.2 - Ask and answer questions
about key details in a text read aloud or information presented orally or
through other media.
- L.1.6 - Use words and phrases
acquired through conversations, reading and being read to, and responding
to texts, including using frequently occurring conjunctions to signal
simple relationships.
- SL.2.1 - Participate in
collaborative conversations with diverse partners about grade 2 topics and
texts with peers and adults in small and larger groups.
- SL.2.2 - Recount or describe key
ideas or details from a text read aloud or information presented orally or
through other media.
- L.2.6 - Use words and phrases
acquired through conversations, reading and being read to, and responding
to texts, including using adjectives and adverbs to describe.
- SL.3.1 - Engage effectively in a
range of collaborative discussions (one-on-one, in groups, and
teacher-led) with diverse partners on grade 3 topics and texts, building
on others‘ ideas and expressing their own clearly.
- SL.3.3 - Ask and answer questions
about information from a speaker, offering appropriate elaboration and
detail.
- L.3.6 - Acquire and use
accurately grade-appropriate conversational, general academic, and
domain-specific words and phrases, including those that signal spatial and
temporal relationships.
This curriculum is available under a
Creative Commons License (CC BY-NC-SA 4.0)
If you are interested in licensing Code.org materials for commercial purposes, contact us: https://code.org/contact
课程2,阶段二,生活中的算法:折纸飞机(不用电脑)
标签:结束 电脑 ref org 建议 eal .com each for
原文地址:http://www.cnblogs.com/mrclock/p/6275623.html