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Simultaneous Equations

From the Nuffield Foundation, the purpose of this module is to introduce students to the solution of simultaneous equations and demonstrates a rather unusual way of approaching the topic. The equations are largely restricted to equations where the coefficients are +/- 1 to achieve some simplicity in the algebra with sometimes more than two unknowns.

The resource includes:

*Introduction for the teacher which outlines the development of the material

*Worksheet 1: becoming familiar with relationships such as adding and subtracting directed numbers in algebraic form

*Worksheet 2: detailed exposition of the graphical solution of a pair of simple linear equations

*Worksheet 3: extension of methods from Worksheet 1 to 3 variables

*Worksheet 4: solving simple arithmograms where sums of adjacent pairs are given.

The student material contains a number of exercises and questions.

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