计算机课程logo,小学五年级信息技术课程《PC-LOGO画椭圆》教学设计

本教学设计介绍如何使用PC-LOGO软件绘制椭圆。通过学习命令STAMPOVAL及其参数横向半径和纵向半径的概念,学生能够掌握绘制不同比例椭圆的方法。

摘要生成于 C知道 ,由 DeepSeek-R1 满血版支持, 前往体验 >

《小学五年级信息技术课程《PC-LOGO画椭圆》教学设计》由会员分享,可在线阅读,更多相关《小学五年级信息技术课程《PC-LOGO画椭圆》教学设计(2页珍藏版)》请在人人文库网上搜索。

1、小学五年级信息技术课程PC-LOGO画椭圆微课教学设计郑贵强一、 教材:教育部中小学信息技术教育实验区实验教材,小学五年级信息技术上册第五课画椭圆。二、教学目标掌握椭圆的两个半径的概念。掌握logo画椭圆的命令: STAMPOVAL 横向半径 纵向半径。二、 教学过程设计(一)引入生活中有很多扁圆形的物体,例如丰田车标、闹钟,鸡蛋啦,都叫椭圆。圆就是特殊的椭圆啊。小海龟是一个画图的高手,现在,我们一起来学习小海龟画椭圆。(二)重点讲授先来了解一下椭圆的两个参数。就是两个半径的概念。横向半径纵向半径椭圆水平方向的半径称为横向半径,垂直方向的半径称为纵向半径,。简单的说,从圆心到水平方向的最远端的。

2、距离就是横向半径,从圆心到垂直方向的最远端的距离就是纵向半径。横向半径和纵向半径指定以后,椭圆的形状就确定了。(三)方法指导弄清楚椭圆的两个半径后,我们来学习画椭圆的命令stampoval。这个单词很简单,我把它拆成两个部分。单词共有9个字母,前面五个字母stamp,看看这张图,邮票。后面四个字母oval,就是指一个圆。合起来stampoval,邮票加椭圆,就是画椭圆的单词了。那么小海龟画空心椭圆的命令,stampoval 横向半径 纵向半径。作用是,让小海龟画指定横向半径和纵向半径的空心椭圆。要注意的是,stampoval后面的第一个参数是横向半径,第二个参数是纵向半径。(四)操作示范例如,画一个横向半径为100,纵向半径为60的空心椭圆。我们打开pclogo,在命令窗口输入stampoval 100 60。那么椭圆就出来了,圆其实就是横向半径和纵向半径都相同的一种椭圆。我们试着输入,stampoval 50 50。好,绘图窗口就出现一个半径为50的圆。(五)总结回顾一下这个画椭圆命令stampoval 横向半径 纵向半径。Logo中画椭圆的命令就是邮票加椭圆。小海龟就是以它为中心,画指定横向半径和纵向半径的椭圆。圆就是横向半径和纵向半径都相同的特殊的椭圆。好,今天画椭圆这个知识点就讲到这里。你明白了吗。

接触过 LOGO 编程语言的人应该都知道这款软件,这也是笔者接触的第一门编程语言,怀念之情难以言表。特将此资源拿出来与大家共享。 注:资源包中包含英文原版和汉化补丁。 以下是原版软件的 README: PC Logo for Windows This file contains the latest information about PC Logo for Windows. PC Logo for Windows installation automatically installs four example programs. These are: Shape Editor The PC Logo for Windows shape editor provides an easy and convenient way to change the turtle shape and save your new shapes as files. The shape editor is written in Logo and also provides an example of using Logo to create a program complete with windows, dialog boxes, buttons, and help. To use the shape editor, load the SHED.LGO file from within Logo or double-click the Shape Editor icon in the Program Manager. Music The MUSIC.LGO file provides an example of using Logo to play music. To listen to the music, load the MUSIC.LGO file from within Logo or double-click the Music icon in the Program Manager. Follow the instructions that appear on the screen. Squiral The squiral program is an example of a simple Logo procedure that uses recursion to create colorful and complex graphics designs. To see the squirals, load the SQUIRAL.LGO file from within Logo or double-click the Squiral icon in the Program Manager. Shapes The shapes program illustrates using multiple turtles in Logo with different shapes for each of them. To see the different shapes, load the SHAPES.LGO file from within Logo or double-click the Shapes icon in the Program Manager. More information about Logo Many books have been published about teaching Logo and using it to teach a variety of other subjects. Harvard Associates has gathered the best of these books into the PC Logo Library. The PC Logo Library catalog accompanies each copy of PC Logo for Windows. Contact Harvard Associates if you would like a copy of the catalog or wish to order one or more of the selections in the PC Logo Library. Harvard Associates, Inc. 10 Holworthy Street Cambridge, MA 02138 U.S.A. phone: (617) 492-0660 fax: (617) 492-4610 CompuServe: 70312,243 Internet: 70312.243@compuserve.com If you are contacting Harvard Associates about a Logo programming problem, please use either fax, mail, or electronic mail and include a written example of a Logo procedure that illustrates the problem.
评论
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值