# Resources for downloading

###### Author and programmer: Ron Barrow

This page will be a central store of resources for downloading. Some of the files exist on other Waldomaths pages. Please note that you may link to these files but you may not repost them anywhere.

#### Worksheets - Adobe .pdf - download Adobe Reader

Circle theorems - circles and isosceles triangles

Circle theorems - the angle in a semicircle

Circle theorems - angles in the same segment

Circle theorems - the angle in a semicircle

Circle theorems - angles in cyclic quadrilaterals

Algebra - difference of two squares factorisation

Transformations - enlargements (dilations)

Transformations - rotations

Algebra - using the quadratic formula

Algebra sequences- finding the nth term of a quadratic sequence

Algebra sequences - finding the nth term of a cubic sequence

more to come ...

#### MS PowerPoint presentations - .pptx - download PowerPoint viewer 2007

*These files work with Microsoft Powerpoint 2007 onwards. The files are very basic with few effects, and some of my files were used in making videos. If you can, feel free to change them for your own purposes. You can also download the free PowerPoint Viewer from Microsoft using the link above.*

Upper and lower bounds 2

The Bubble Sort Algorithm

The Shuttle Sort (Insertion Sort) Algorithm

Changing the subject when it appears twice.

Harder questions on direct and inverse proportion

Linear 4 - Parallel and perpendicular lines 1

Linear 5 - Parallel and perpendicular lines 2

more to come ...

#### Promethean ActivStudio 2 flipcharts - .flp

*These files work with ActivStudio software from Promethean. They are for interactive whiteboards using the excellent ActivStudio software. They should load with ActivStudio 2 or 3 (ActivInspire). The files are very basic with few effects, and some of my files were used in making videos. The idea was that my students would see the flipcharts in class and would have the videos for revision.*

Upper and lower bounds 1

Loci 1

Loci 1

Similar shapes 1 - introduction

Similar shapes 2 - lengths and scale factors

Similar shapes 3 - areas and area factors

more to come ...

#### Tarsia Jigsaw files - .fjsw - download Formulator Tarsia (scroll down page)

*Formulator Tarsia from Hermitech Labs enables teachers to make jigsaw-type maths problems
*

Percentage Multipliers - percentage increases and decreases as decimal multiplying numbers

Surds - expressions with radicals, roots

more to come ...