# data[].attributes.attachment_link.readable_text
This topic is covered in lesson G7a - Coordinates. When considering coordinates from an algebraic point of view, a key point to note is the following:

You can specify points on a grid using coordinates. These are most commonly are of the form (x, y).

You can These equations give you the relationship between the specify straight lines (as well as many curves) on a grid using equations. x and y coordinates of every point on the line. For example,every point on the line y = x has an x coordinate which equals its y coordinate. Such points include (1, 1), (2, 2), (3, 3) etc. but also (1.7, 1.7)... There are infinitely many points on the line, but the equation perfectly defines the line.

# data[].attributes.attachment_link.title
A8a - Working with coordinates in all four quadrants

# data[].attributes.attachment_link.description
This topic is covered in lesson G7a - Coordinates. When considering coordinates from an algebraic point of view, a key point to note is the following: You can specify points on a grid using coordinates. These are most commonly are of the form (x, y).

# data[].attributes.attachment_link.readable_text
Teacher resources for Part 1

Teachers: log in to access the following:

Slides in PDF (one slide per page, suitable for importing into IWB software)

Worksheet (with space for student work)

Handout (slides with exercises only; 4 per page for reduced printing)

Links to past exam questions

Teachers: log in to access these.

Interactive GeoGebra activity: Horizontal and vertical lines and coordinates

Teacher resources for Part 2

Slides in PDF (one slide per page, suitable for importing into IWB software)

Worksheet (with space for student work)

Handout (slides with exercises only; 4 per page for reduced printing)

Teachers: log in to access the following:

Links to past exam questions

Teachers: log in to access these.

Interactive GeoGebra activity: Finding the gradient of a straight line

What is the gradient of the line shown?

Interactive GeoGebra activity: Identifying equations of straight line graphs

What is the equation of the line shown?

Interactive GeoGebra activity: Straight line graphs and coordinates

Interactive GeoGebra activity: Draw the line - RECOMMENDED ACTIVITY!

Drag the blue points to match the equation given. The line will turn green if you get it correct! Click the "New line" button to have another go.

With thanks to Steve Phelps, whose Graph the Line worksheet is available here. Material modified and embedded here under the CC-BY-SA 3.0 license.

Slides in PDF (one slide per page, suitable for importing into IWB software)

Worksheet (with space for student work)

Handout (slides with exercises only; 4 per page for reduced printing)

Teacher resources for Part 3

Teachers: log in to access the following:

Links to past exam questions

Teachers: log in to access these.

Teachers: log in to view this content.

# data[].attributes.attachment_link.description
Teacher resources for Part 1 Teachers: log in to access the following: Slides in PDF (one slide per page, suitable for importing into IWB software) Worksheet (with space for student work) Handout (slides with exercises only; 4 per page for reduced printing) Links to past exam questions Teachers: log in to access these.

# data[].attributes.attachment_link.readable_text
Teachers: log in to access the following:

Slides in PPTX (with click-to-reveal answers)

Slides in PDF (one slide per page, suitable for importing into IWB software)

Worksheet (with space for student work)

Handout (slides with exercises only; 4 per page for reduced printing)

Card sort (a knowledge of rearranging/ changing the subject is required for this activity)

Links to past exam questions

Teachers: log in to access these.

Interactive GeoGebra activity: Gradients of perpendicular lines

Move around the blue points to see the relationship between perpendicular lines.

With thanks to Tim Brzezinski, whose Perpendicular Lines Investigation (VB) worksheet is available here. Material modified and embedded here under the CC-BY-SA 3.0 license.

Teachers: log in to view this content.

# data[].attributes.attachment_link.title
A9b - Identifying parallel and perpendicular lines

# data[].attributes.attachment_link.description
Teachers: log in to access the following: Slides in PPTX (with click-to-reveal answers) Slides in PDF (one slide per page, suitable for importing into IWB software) Worksheet (with space for student work) Handout (slides with exercises only; 4 per page for reduced printing) Card sort (a knowledge of rearranging/ changing the subject is required for this activity) Links to past exam questions Teachers: log in to access these.

# data[].attributes.attachment_link.readable_text
Use this applet to practise finding the gradient of a line through two points. Click the dashed line segments to help you, or click "Show gradient" to reveal the answer. You can then try finding the gradient of a new line by clicking the "New line" button or by moving the red points around. You can also use your mouse's scroll function or pinch to zoom in or out.

Links to past exam questions

# data[].attributes.attachment_link.title
A9c - Finding the equation of a line through two given points or through one point with a given gradient

# data[].attributes.attachment_link.description
Use this applet to practise finding the gradient of a line through two points. Click the dashed line segments to help you, or click "Show gradient" to reveal the answer. You can then try finding the gradient of a new line by clicking the "New line" button or by moving the red points around.

# data[].attributes.attachment_link.readable_text
Teachers: log in to access the following:

Slides in PPTX (with click-to-reveal answers)

Slides in PDF (one slide per page, suitable for importing into IWB software)

Worksheet (with space for student work)

Handout (slides with exercises only; 4 per page for reduced printing)

Further resources on external sites (log in to see links)

Links to past exam questions

Teachers: log in to access these.

Teachers: log in to view this content.

# data[].attributes.attachment_link.title
A10a - Identifying and interpreting gradients and intercepts of linear functions graphically and algebraically

# data[].attributes.attachment_link.description
Teachers: log in to access the following: Slides in PPTX (with click-to-reveal answers) Slides in PDF (one slide per page, suitable for importing into IWB software) Worksheet (with space for student work) Handout (slides with exercises only; 4 per page for reduced printing) Further resources on external sites (log in to see links) Links to past exam questions Teachers: log in to access these.

# data[].attributes.attachment_link.readable_text
Teachers: log in to access the following:

Slides in PPTX (with click-to-reveal answers)

Slides in PDF (one slide per page, suitable for importing into IWB software)

Worksheet (with space for student work)

Handout (slides with exercises only; 4 per page for reduced printing)

Links to past exam questions

Teachers: log in to access these.

Teachers: log in to view this content.

# data[].attributes.attachment_link.title
A11a - Identifying roots, intercepts and turning points of quadratic functions graphically

# data[].attributes.attachment_link.description
Teachers: log in to access the following: Slides in PPTX (with click-to-reveal answers) Slides in PDF (one slide per page, suitable for importing into IWB software) Worksheet (with space for student work) Handout (slides with exercises only; 4 per page for reduced printing) Links to past exam questions Teachers: log in to access these.

# data[].attributes.body
https://padlet.com/rdownes/Algebra1
https://padlet.com/rdownes/Algebra2
https://padlet.com/rdownes/Algebra3
https://padlet.com/rdownes/Algebra4
https://padlet.com/rdownes/Algebra5
https://padlet.com/rdownes/Algebra6
https://padlet.com/rdownes/Algebra7
https://padlet.com/rdownes/Algebra8
https://padlet.com/rdownes/Algebra9
https://padlet.com/rdownes/Algebra10
https://padlet.com/rdownes/Algebra11
https://padlet.com/rdownes/Algebra12

# data[].attributes.attachment_link.title
A9a - Part 1 - Vertical and horizontal lines

# data[].attributes.attachment_link.description
A9a - Part 1 - Vertical and horizontal lines