1. Let’s Think Secondary Science Lesson 3 – The G Word
Title Page

2. Introduction
Entry activity. Place one illustration sheet on the tables for each group.

3. Relationships can be displayed as a picture called a Graph.
The G Word
Relationships can be displayed as a picture called a Graph.
Graphs usually have two axes. What are their general names?
Which name is the one for the horizontal line?
Bullet 1 - Ask the students about the graphs they have drawn before.
You may want to do this as a “Think, pair and share activity.”
Each group needs one blank graph sheet showing axes.

4. Coiled Spring
What were the variables and relationship you found for the Elastic Band experiment?
Use the same method to collect results for the spring.
What does the graph look like?
The purpose is to produce a curve based upon the points not a perfect graph.

5. Washing up Liquid
What happens when heated washing up liquid is poured through the funnel.
What are the variables?
What do you predict the relationship will be?
Why?
Insert a picture of your apparatus

6. Constructing Some Meaning
Look at the results from a previous experiment using this washing up liquid.
Can you predict the time for 400C?
What were you thinking about as you did this?
It is vital that the students debate what the shape of the graph will look like prior to sketching it.

7. Constructing Some Meaning
Watch the teacher experiment and use the results to sketch a graph of temperate against time.
Compare the washing up graph with the graph for the spring.
How are they different?
What is the shape telling you?
Which graph will produce more accurate predictions? Why?
It is vital that the students debate what the shape of the graph will look like prior to drawing it.

8. What have you learnt from today’s lesson?
Review - More thinking
What have you learnt from today’s lesson?
Metacognition: What have you learnt from today’s lesson?
Teacher to add their own additional questions to promote metacognition – see the mediating questions sheet.

9. Bridging
Think of an example from your life that uses some of the thinking you have used today.
Bridging and further thinking at home

10. End