The lesson is planned using Principles of Practice and starts with Know it, Show it slides. Students are asked to evaluate the effectiveness of a frog’s circulatory system. Students then self assess with a mark scheme which is displayed on a PowerPoint slide. Students recall the parts of the heart and the major blood vessels, from GCSE by labeling two worksheets. Students self assess. The answers animate in on the slide. Students are then show an A level diagram of the heart and are asked to identify features that they have not heard of before. Students are then given 2 mins to remember all the labels. The following slide has the image with labels hidden and the teacher can ask students to identify the parts (pose, pause, pounce, bounce) and the answers are revealed by the click of a button! Students then label a diagram of this heart. Students are asked if cardiac muscle also needs to respire and are guided to realise that the oxygen and glucose cannot be provided to heart cell via the insed of the heart. Students recall coronary arteries from GCSE. There is a looped video playing the lub dub sound and students are asked to identify the source of the sound. Teacher explains it is the heart valves closing and then shows images of the heart valves on the PowerPoint. Students are then given a worksheet to complete assessing all the content of the lesson. Answers animate on the slides on the presentation. All worksheets are in