Teaching and learning resources. This site was developed to replace the National Strategies web area. Following the closure of the contract, it has been decided that the content should be made available through the UK Government Web Archive for reference only. On this site you will find the most popular content from the National Strategies web area, which has been updated to reflect the latest government policy and improved to make it more accessible. See how teachers, practitioners, classroom assistants, senior leaders, governors and other education professionals have been leading positive change in education. You can access strategies, practical support and examples of best practice. National STEM Centre. Bitesize. Home - The Association for Science Education. Science for Kids - Fun Experiments, Cool Facts, Online Games, Activities, Projects, Ideas, Technology.