Geometry And Discrete Mathematics 12th
TEACHING DISCRETE MATHEMATICS IN GRADES 7-12 Hart, Eric W. Et al., 'Teaching Discrete Mathematics in Grades 7-12,' Mathematics Teacher 83, no. 5 (1990): 362-367.
Oct 31, 2017 - Notes on Discrete Mathematics. James Aspnes. 1.1 So why do I need to learn all this nasty mathematics?.. 7.5.2.1 Geometric series. C.1 Assignment 1: due Thursday, 2013-09-12, at 5:00 pm...
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TEACHING DISCRETE MATHEMATICS IN GRADES 7-12 By ERIC W. HART, JAMES MALTAS, and BEVERLY RICH The NCTM's Curriculum and Evaluation Standards for School Mathematics (Standards) (1989) explicitly recommends discrete mathematics for inclusion in the 9-12 curriculum, and many of the recommendations for the middle grades can be addressed by teaching discrete mathematics in grades 7 and 8. In this article we examine how discrete mathematics can be taught in grades 7-12.
We shall first briefly discuss what is meant by discrete mathematics. In general, discrete mathematics deals with discrete phenomena and finite processes, as opposed to the continuous functions and infinite limits that are the mainstay of calculus and classical analysis. It comprises many diverse topics, some familiar to secondary school teachers, like matrices and finite probability, and others not so familiar, like difference equations and graph theory. Amidst this diversity of topics, the unifying theme of discrete mathematics is 'algorithmic problem solving,' that is, solving problems by devising and analyzing algorithms that construct the solution. The Standards specifically recommends that all students in grades 9-12 should study graph theory, matrices, sequences, recursion, algorithms, and enumeration and finite probability problems. Examples of where and how to teach some of these discrete-mathematics topics will be given after a general discussion of how to fit discrete mathematics into an already crowded curriculum.
Fitting Discrete Mathematics Into the Curriculum Discrete mathematics can fit into many places in the curriculum, and several possible strategies can be recommended for its implementation. • Emphasize discrete mathematics topics that are already part of the curriculum. For example, matrices, counting, induction, sequences, sets, and logic are discrete-mathematics topics that are already in the curriculum.
• Take a 'discrete' approach to old topics. For example, use matrices to solve systems of linear equations and to represent geometric transformations, or represent relations using graphs and matrices, or use recursive formulas for sequences. • Teach short (two- to ten-day) units on 'new' discrete-mathematics topics. Materials are rapidly becoming available for topics like graph theory, difference equations, game theory, and linear programming. But do we have room?
Many teachers are already teaching such units without eliminating other topics by teaching the units during 'slack' times, such as just before and after vacation breaks. Tamil songs free downloads. Also, one can make room in the curriculum by reducing the time spent on such topics as factoring and two column proofs, as recommended in the Standards. • Teach a full-semester course on discrete mathematics. Numerous high schools around the country are already starting to take this approach. At present such a course is most commonly viewed as a senior mathematics course for better students.
But a discrete-mathematics course could fit into the curriculum. In particular, discrete mathematics topics are well suited to the 'core curriculum' recommendation of the Standards (see Hirsch and Schoen [1989]). That is, the same topics can be taught at different levels and with different applications. Thus, a discrete-mathematics course could be appropriate for students who now take 'general math,' for students who have completed first-year algebra or geometry but are not quite ready for second-year algebra, or for students who need a course to follow or replace calculus. • Weave in discrete mathematics. Many discrete mathematics topics can be woven into the existing curriculum, as discussed in categories 1, 2, and 3 and also by using discrete-mathematics topics as examples and applications within the existing curriculum.