# Latest teaching and learning ideas

The Latest in Tech, Tools and Toys for Teachers.  Lesson Plans, Classroom resources and ideas for busy teachers.  iPad Apps and Android Apps for teachers and students.

# TED-ED Pick of the Week: Why the shape of your TV Matters

Watching a movie at home isn’t quite the same experience as seeing it at a movie theater -- but why? Learn how changes in aspect ratio affect every film, and why your television might not be delivering the whole picture.

There is a great deal of science and maths associated with this lesson that can be applied to the classroom such as ration and percentages.

# Great collection of 3D shape Nets to Print and Make

Creating 3D shapes from a 2D net is a really important process for students to understand.  It opens the door to discussing various aspects of geometry and looking at the properties of 3D shapes such as faces, vertices and edges.

This collection of 3D shape nets can be used in classes of all age groups to teach geometry and shape.

# EXCELLENT TOOL FOR TEACHING FRACTIONS, DECIMALS, RATIOS & PERCENTAGES.

This Excel workbook is an excellent tool for using with your interactive whiteboard to explain the mathematical links between fractions, decimals ratios and percentages.

Here are some suggestions for how you might use it in the classroom.

How Many Shaded: Show the students the workbook with no red squares shaded and one or more of the fraction, ratio, decimal and percentage showing.  Ask students how many squares need to be shaded to make 25% for example.  Get one student to come to the board to add the squares to check.  Repeat for different grid sizes and values.

Equivalent Fractions:  Show the students the workbook with no red squares shaded and the fraction showing.  Ask students how many squares need to be shaded to make 1/2 for example.  Get one student to come to the board to add the squares, look at the fraction the click simplify to check.  Repeat for different grid sizes, then for different fractions.  Ask questions such as "Can we shade in 1/3 of the grid?  If not why not?"

Investigate:  In a computer lab, get the students to open up the workbook.  Ask them to show the fraction and ratio cells and to investigate the relationship between the fractions and ratios for various grid sizes and a different number of squares shaded.  Tell them that they can use the simplify button or calculator whenever they want.  Tell them that they will have to write, present or discuss their findings.  Ask the what the simplify button does, etc.  This activity could also be used to investigate the relationship between fraction and decimal, etc.

Download it here.- Remember to Enable Macros to make it work correctly.

Quadrilateral just means "four sides" (quad means four, lateral means side).  Any four-sided shape is a Quadrilateral.   The sides have to be straight, and it has to be 2-dimensional.

Quadrilaterals are simple (not self-intersecting) or complex (self-intersecting), also called crossed. Simple quadrilaterals are either convex or concave.

The interior angles of a simple quadrilateral ABCD all add up to 360 degrees of arc,

* Please note all of our posters are originally designed using high resolution images and fonts at A3 paper size. Be aware it will be automatically resized to your default paper size when using Adobe Acrobat Reader without any loss of quality. If you would like to print these documents at larger sizes you can read the Adobe Resize & Scaling FAQ here.

Finally if you would like to purchase a completely editable version of this document to alter without any restrictions you can purchase it for \$10.00 simply by emailing us.

# PRINTABLE GRAPH & GRID PAPER OF ALL SIZES

It can be hard to find simple graph or grid paper when you need it in the classroom or if you are working at home.  So I have made up a variety of common sized graph paper for you to download and use for FREE.

These can be used for a variety of maths, science or design purposes.

Please select the appropriate size below

5mm Squares

10mm Squares

1/4 Inch Squares

5mm Squares

10mm Squares

1/4 Inch Squares

5mm Squares

10mm Squares

1/4 Inch Squares

## U.S Ledger  (279 x 432 mm) or (11 x 17 inches)

5mm Squares

10mm Squares

1/4 Inch Squares

Five Star Reinforced Filler Quad Paper 100 ct (17016)