This lesson is designed for the NEW AQA Trilogy Chemistry GCSE, particularly the ‘Organic Chemistry’ SoW.
 
Students are firstly introduced to the idea of a ‘homologous series’ and look at how this applies to the pattern of formulae for the alkene series. Students are then asked to think about the differences between complete and incomplete combustion from what they have learned in previous lessons, before being shown the differences between complete/incomplete combustion of alkenes and how this explain why alkenes are rarely used as fuels.
 
Next, students will watch a video on the reactions of alkenes with water and with halogens, using the information in the video they will need to answer a set of questions. The answers to this task are provided in the PowerPoint so that students can self-assess their work.
 
Pupils will now be given a set of symbol equations between different alkenes and halogens, pupils will need to complete these calculations in their books, ensuring that they are balanced. Once complete, pupils can self-assess their work.
 
The last part of the lesson focuses on the reaction of alkenes with hydrogen, students will be shown a simple hydrogenation reaction and will also be given some information about hydrogenation and whether it is a good or bad process in the production of margarine spreads from vegetable oils. Students will need to read this information and then answer a set of questions, this work can be self-assessed using the answers provided in the PowerPoint presentation.
 
The plenary task is for pupils to write a Whatsapp message about what they have learned in the lesson today.