![]() Excel can be used plot graphs, but this requires some programming skills. Although this module uses Graphmatica, the worksheets given here can be modified to suit any other graphing software (as well as graphing calculators), provided the teachers keep in mind the pedagogical principles involved. The main limitation of Graphmatica is that it cannot plot points entered by the user. It can be downloaded from the Math Forum Web site. As a shareware, it is cheap compared to the above mentioned commercial packages. It a small program (178 KB in zipped file), so pupils can copy and use it on their home computer, if necessary. In this module, we will use the shareware, Graphmatica, by Keith Hertzer. ![]() These commercial packages require large memory and are difficult to learn. There are several commercial software that includes graphing features: ANUGraph, Mathematica, MathCad, and MathLab. Include calculus features such as plotting of derivative and computing the numerical area under a curve. Trace feature to enable the user to read off the x-y coordinates of points on a given curve. Zoom feature to allow the user to study local and global properties and to obtain more accurate values, especially when solving equations graphically. Allow the user to control the domain and range of values to be plotted. Plot graphs by accepting functions in Cartesian form, y =f(x), x = g(y), as implicit functions (for example, x2 + y2 = 9), in parametric form, or as polar equations. Most graphing software has the following capabilities: 1. What is a Graphing Software A graphing software is a specialised program used by mathematicians in the study of graphs of functions. Pre-requisites Participating teachers should be familiar with Windows 95 and, preferably, have attended Module 1on Excel templates. Use the graphing software together with sample worksheets to teach selected mathematics topics in the classrooms use the graphing software, together with a screen capture program, as a productivity tool in the preparation of worksheets and tests understand the pedagogical principles used in the design of the worksheets, so that these principles can be applied to develop own activities later on. Objectives At the end of this module, teachers will be able to: 1. Dr Wong Khoon Yoong Department of Science and Mathematics Education Room 2.36, Tel: 249001-528, email: Comments, corrections and any other feedback relating to any part of this manual are most welcome. This module is to be used in a 3-hour training session for teachers. Extension examples are also given to challenge the more able pupils. This module covers the use of the graphing software, Graphmatica, to teach selected mathematics topics in the secondary school mathematics syllabi. The aim of the CMI Project is to help mathematics teachers acquire the knowledge and develop the skills to use computers to teach mathematics in secondary schools. Introduction This is the second module of the Computers for Mathematics Instruction (CMI) Project, an in-service program organised by the Ministry of Education, the Secondary Mathematics School-Based Committee, and the Department of Science and Mathematics Education at Universiti Brunei Darussalam. 52 Graphing Software as a Productivity Tool. 14 Graphical Solution of Quadratic Equations. 4 Teaching Sequence When Using Graphing Software. ![]() 3 Instructional Objectives with Graphing Software. Ministry of Education, Brunei Darussalam Secondary Mathematics School-Based Committee Department of Science and Mathematics Education SHBIE, UBD Computers for Mathematics Instruction (CMI) Project
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