1. Let’s Think Secondary Science Lesson 2 – The R Word
Title Page

2. Using Your Learning from Lesson 1
Choose from the 2 activities which you wish to use as a hook for the lesson.

3. Describing Relationships
In your groups. Work on the three activities.
Beakers – fill each bowl with 1OOml and measure the width and depth.
Elastic Band – measure the stretch as you add 100g.
Thermometers – what is the connection between temperature scale and length of thermometer?
Same groups of 4 maximum. A student in each group draws a two column table with the headings Variables and Values to record their answers.
The thermometers should include a large negative scale type and small clinical.
Do not use the terminology proportional and inverse proportional because the relationships are not precise enough.

4. Thinking about Relationships
Things to talk about:
Input,
Output,
Relationships
What did you think more about?
Remember Rhys last week?
Link back to your hook, comparing similarities and differences to the experimental relationships, variables and values.
Ask the students your planned questions to promote metacognition.
Ask the students to reflect on how they worked as a group and visualise how they will make a better contribution next time.

5. Review
Bridging activity.
Think of an example from your own life.

6. Global Warming Watch the video clip;
Think about a relationship in the clip;
After you leave the classroom think of a new relationship.
An optional bridging and homework thinking activity.
Teachers choose a current example of severe weather fluctuations related to global warming.

7. End