This double sided worksheet examines the process of negative feedback as it pertains to Thermoregulation of the body. Physiological responses to temperature change are included in the questioning and linked to the process of negative feedback. The last few questions then begin to ask students to consider the implications of positive feedback as a shift further and further away from the ‘normal’.

The resource consists of a page of tiles and a grid for sticking them on to which links seral stage to environmental conditions. An animated markscheme (PowerPoint) is also included which can be projected to help students with the task and/or used to aid discussion.

The worksheet focuses on student understanding of the experiments carried out by Nirenberg and Khorana to determine which codons/triplets code for which amino acids. The worksheet details their investigations into the genetic code and provides a scaffold for students to draw conclusions from their original data. This is sound practice for questions of this type, which are becoming an increasingly frequent aspect of examinations. It also serves to consolidate on existing knowledge regarding the genetic code and is a useful reflection activity in its own right.

This A-level resource challenges students to apply their existing knowledge of absorption in the small intestine to explain how ORS works as an effective treatment for Cholera. Students will need to apply their knowledge and understanding of what happens during absorption and apply it to unfamiliar situations. A full makscheme is included to allow teacher, peer or self marking as best fits your afl needs.

Designed to take up around a single lesson of time, this debate is aimed at 14 to 16 year olds but could easily be used with older students too. It splits students into 3 groups with conflicting interests (scientist, politician or fisherman) from a fictional country and challenges them to form a plan of action regarding their country's use of dwindling fish stocks. Split students into groups by role (the scientist and politician roles require perhaps the greatest flexibility of thought, so maybe differentiate your groups allowing for this) and give them 5 to 10 minutes with the source material to discuss in their groups how they feel about the issues and what they're going to be aiming for in their debate. Students then assemble into teams of 3 (one of each role) and have 15 minutes to debate about how they will tackle the issues of overfishing outlined on the accompanying worksheet. They should complete the included worksheet and reach a decision as to how they will move Pandora onwards into the future in a position that will best please everybody. Each group then feeds back their decision and some of the reasoning behind it. This exercise helps students appreciate some of the real world conflicts that exist between human needs and those of the natural world. In my experience it also serves to show how some of these issues may not be as clear-cut as students first assume.

This PowerPoint of 25 slides covers all the content needed on Muscle structure, including the 3 main types of muscle, gross structure, a detailed breakdown of the parts of the sarcomere including a step-by-step run through of sliding filament theory and the difference between fast- and slow-twitch muscle fibres including an explanation of phosphocreatine as an energy source. All of this is illustrated with clear diagrams and pictures and includes some simple animations. A central menu allows easy navigation to different parts of the PowerPoint and numerous slides are accompanied by teacher notes to help you clarify points/stimulate student interest. A note-sheet is included with several diagrams drawn from the PowerPoint to facilitate annotation and note taking.

A detailed PowerPoint of 19 slides outlining kidney structure and function. Separate sections focus on ultrafiltration; reabsorption in the proximal convoluted tubule; water reabsorption in the Loop of Henle; and the role of the hypothalamus and posterior pituitary in releasing anti-diuretic hormone (ADH) and its affect on the permeability of the collecting duct in osmoregulation. Carefully presented diagrams outline the processes and explain in step-by-step annotations how these organs work. Multiple points of the PowerPoint are animated and you can navigate between slides/sections using a centralised menu. Also included is a printable notes sheet with diagrams from the PowerPoint integrated to facilitate student note-taking. Note - the preview function on TES mauls the PowerPoint slides - please be assured they work fine on both PC and Mac - I’ve tested them carefully.

A 41 slide PowerPoint detailing: Flower anatomy for both animal and wind pollinated variations to recap with A-level students from GCSE, leading into detailed slides outlining microsporogenesis, macrosporogenesis, pollination and fertilisation in plants. This is tailored to the Edexcel Biology B specification but is fully detailed so should suffice in any scheme of work. Each process is covered using clear, custom made diagrams and animations paired with step-by-step explanations and fully detailed notes. I put this together initially to help my students follow the complex processes of gametogenesis in plants and fertilisation and it has certainly proven helpful. A 3 page, printable sheet of diagrams for annotation is also included, which can be distributed to students and completed as the teacher presents and explains. I’ve now used this resource several times and am please with how it has turned out. Do note I’ve tested this on both PC and Mac and it performs excellently on both mediums. I pride myself on producing polished, professional feeling resources and always respond quickly to feedback if an issue occurs so you can download an updated resource promptly.