1.2.6 The Halogens (AQA GCSE Chemistry)

Spec 2.6 The halogens (Two hours suggested teaching time)

Lesson preparation:

Demonstration: Chlorine gas, bromine and iodine.
Practical / Demo: Displacement reactions of the halogens.

Suggested teaching:

Lesson 1:

Slide 1: Starter questions with differentiated alternative hidden on slide 4
Slide 5: You may want to physically show students chlorine, bromine and iodine here, get them to record their observations of physical state and colour. They could attempt to describe the trend.
Slide 6: Optional recap questions.
Slide 8: Important information
Slide 9: Optional task introducing the trends of the halogens.
Slide 11: More information
Slide 12: Graph plotting and trend description task (differentiated version on slides 14-16)

Lesson 2:

Slide 16: Starter questions with differentiated alternative hidden on slide 17
Slide 18: Optional recap questions
Slide 20: Optional video with questions to answer on slide 22
Slide 23: Explanation of reactivity of the halogens task (as done with the alkali metals)
Slide 25: High ability displacement reaction problem solving task.
Slide 27: Animation showing colour changes of the halogens, if a demo is not available
Slides 28-37: Adapted version of a classic on the displacement reactions. I have set this up to try and model what is happening, with lots of scaffolded steps, gradually removing the support.
Slide 38: A table to record results of the displacement reactions.