3.3.1

Straight Lines

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Straight Lines

There are special words we use in maths to describe straight lines which are drawn in different ways. These words describe the direction of the lines.

Horizontal lines

Horizontal lines

Horizontal lines go straight across left to right in the direction of the horizon.
In your English book, the lines you write on are horizontal on the page.
The top of a goal post is a horizontal bar.

Horizon

Horizon

Horizontal comes from the word horizon which is what seems to be a straight line when you look out to sea where the Earth meets the sky.
In real life, it’s not a straight line because the Earth is a sphere.

Vertical lines

Vertical lines

Vertical lines go straight up and down.
In your maths books, the squares are made of horizontal and vertical lines.
The side posts of a rugby goal are vertical.

1

Year 3 - Number

2

Year 3 - Measurement

2.1

Length

2.1.1Length 2.1.2Comparing Lengths 2.1.3Add & Subtract Lengths 2.1.4Perimeter

2.2

Mass

2.2.1Mass 2.2.2Comparing Masses 2.2.3Add & Subtract Masses

2.3

Volume & Capacity

2.3.1Volume & Capacity 2.3.2Comparing Volumes 2.3.3Add & Subtract Volumes

2.4

Money

2.4.1Money 2.4.2Counting Money 2.4.3Adding & Subtracting Money

2.5

Time

2.5.1Units of Time 2.5.2Clocks 2.5.3Telling the Time 2.5.4Time of the Day 2.5.512-Hour & 24-Hour Clocks 2.5.6Measuring Time

3

Year 3 - Geometry

3.1

Angles

3.1.1Angles in Degrees 3.1.2Types of Angle

3.2

Properties of Shapes

3.2.12D Shapes 3.2.23D Shapes

3.3

Straight Lines

3.3.1Straight Lines 3.3.2Parallel & Perpendicular Lines

4

Year 3 - Statistics

4.1

Statistics

4.1.1Statistics 4.1.2Pictograms & Bar Charts

5

Year 4 - Number

6

Year 4 - Measurement

6.1

Units

6.1.1Metric Measurements 6.1.2Adding & Subtracting Money

6.2

Time

6.2.1Converting Units of Time 6.2.2Changing the 12-Hour Clock to the 24-Hour Clock 6.2.3Changing the 24-hour Clock to the 12-Hour Clock

7

Year 4 - Geometry

7.1

Properties of Shapes

7.1.1Symmetry 7.1.2Types of Triangle 7.1.3Quadrilaterals

7.2

Perimeter & Area

7.2.1Perimeter 7.2.2Area

7.3

Position & Direction

7.3.1Coordinates 7.3.2Translation

8

Year 4 - Statistics

8.1

Statistics

8.1.1Types of Data 8.1.2Pictograms & Bar Charts 8.1.3Line Graphs

Jump to other topics

1

Year 3 - Number

2

Year 3 - Measurement

2.1

Length

2.1.1Length 2.1.2Comparing Lengths 2.1.3Add & Subtract Lengths 2.1.4Perimeter

2.2

Mass

2.2.1Mass 2.2.2Comparing Masses 2.2.3Add & Subtract Masses

2.3

Volume & Capacity

2.3.1Volume & Capacity 2.3.2Comparing Volumes 2.3.3Add & Subtract Volumes

2.4

Money

2.4.1Money 2.4.2Counting Money 2.4.3Adding & Subtracting Money

2.5

Time

2.5.1Units of Time 2.5.2Clocks 2.5.3Telling the Time 2.5.4Time of the Day 2.5.512-Hour & 24-Hour Clocks 2.5.6Measuring Time

3

Year 3 - Geometry

3.1

Angles

3.1.1Angles in Degrees 3.1.2Types of Angle

3.2

Properties of Shapes

3.2.12D Shapes 3.2.23D Shapes

3.3

Straight Lines

3.3.1Straight Lines 3.3.2Parallel & Perpendicular Lines

4

Year 3 - Statistics

4.1

Statistics

4.1.1Statistics 4.1.2Pictograms & Bar Charts

5

Year 4 - Number

6

Year 4 - Measurement

6.1

Units

6.1.1Metric Measurements 6.1.2Adding & Subtracting Money

6.2

Time

6.2.1Converting Units of Time 6.2.2Changing the 12-Hour Clock to the 24-Hour Clock 6.2.3Changing the 24-hour Clock to the 12-Hour Clock

7

Year 4 - Geometry

7.1

Properties of Shapes

7.1.1Symmetry 7.1.2Types of Triangle 7.1.3Quadrilaterals

7.2

Perimeter & Area

7.2.1Perimeter 7.2.2Area

7.3

Position & Direction

7.3.1Coordinates 7.3.2Translation

8

Year 4 - Statistics

8.1

Statistics

8.1.1Types of Data 8.1.2Pictograms & Bar Charts 8.1.3Line Graphs

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3D Shapes

Parallel & Perpendicular Lines