A straight line is shown with the x and y axis intercepts shown. A point P is marked on the line but the coordinates are not given. P is then joined back to the origin, splitting the triangle into two parts. The challenge is to find the area of...

This resource contains seven problems requiring students to think, explore, explain and justify the mathematics they use in order to solve the problems presented. Students will explore the equations of straight lines, parallel lines, perpendicular lines, equations of straight lines in a variety of forms and to find...

This MEP resource from CIMT is taken from text book 8B which covers the mathematics scheme of work for the second half of year 8.

Straight line graphs covers: coordinates, plotting points on straight lines, plotting graphs given their equations, the equation of a straight line and the equation of a line...

This resource created by Shirley Fall has twenty mystery fact cards, each containing a statement about the features of straight line graphs and how they lie on a 3 by 3 grid. The rationale is for students to use the fact cards to discover the features of each graph - its gradient, its intercept, its graph and...

Straight Lines

This interactive file deals with...

This interactive excel program is about finding the equation of straight lines in the form ax+by+c=0. The first two sheets deals with the equation of the line through two given points and the equation of the line through a point perpendicular to a given line. The...

In this resource students are challenged to determine the equation of the line that goes through a given coordinate point and is also tangential to a circle centred on the origin. The final step is to determine the radius of the circle.

The solution involves determining the gradient of the tangent and also...

Two verticals masts on a horizontal base have ropes tethered to each other’s base. The challenge is to find the height at which the ropes cross. When working on numerical examples, it becomes...

Three addition calculations are shown using symbols instead of numbers. Can students arrange the symbols from smallest to largest? A second puzzle follows with four additions, including one with more than one symbol on each side of the equals sign.

Students are asked, in this resource from Defence Dynamics, to consider the importance of approximating and checking strategies in mental calculations and also of answers derived from a calculator. At each point they weigh up their answers against real-life results where unexpected factors have had to be taken into...

This Cre8ate maths activity draws on measuring stretchiness which involves the collection of real data, calculating percentages and experimental design. This resource models one way in which engineers use their knowledge of mathematics to investigate the properties of materials. Here students investigate the...

This guide, for more advanced users of LINUX, shows how BASH scripts can be used for operations on strings and for arithmetical operations. The syntax for BASH is clearly explained.