I've been teaching A-level biology for years and have spent several hours developing resources to the highest possible standard.
They are designed to maximise class time - spending less time on learning facts, with a focus on application and the processing of information.
PowerPoint introducing the topic. Contains a starter question and a quick video, with one of my favourite quotes, before using the manufacture of synthetic insulin as an example to illustrate where this field of DNA technology originated. it outlines the different steps involved in the topic for the isolation, replication and identification of the desired gene/protein, and then introduces stick and blunt ends. Where possible, there are links to previously taught material. The PPT contains (a few) notes with most of the answers to the questions on the PPT. This resource is designed to be used with the class notes for this topic.