Mathematical skills - Straight Lines and Simultaneous Equations

Gives a simple everyday interpretation of simultaneous equations from which the video demonstrates a solution method which is simple and intuitive with minimal reliance on abstract mathematics.

This video introduces the algebraic methods used in school to solve simultaneous equations. It is shown that this method is in fact equivalent to he intutive method of earlier videos (and thus in fact could be avoided where students struggle with its abstract nature).

Gives a number of worked examples of solving simultaneous equations. Students can pause the video and try the examples themselves before watching the solutions.

Use a number of everyday scenarios to explain the meaning and importance of simultaneous equations and the intercept point.

Lectures aimed at giving an introduction to the definitions and meanings of simple block diagrams and easy to understand methods for computing relationships between loop inputs and outputs. Lecture 1 focuses on what is a transfer function?

Introduces the concept of straight lines using everyday scenarios which are easy to relate to. Introduces concepts of gradient and intercept with the vertical axis, again in terms of everyday scenarios.

Develops video 2 by introducing the concept of 'abstract' variables to represent the terms in a straight line and hence the general equation form of 'y=mx+c'.