![]() Next move onto contexts that show a link between a physical attribute and a property. Just as stringed instruments get larger and their strings thicker as their pitch gets lower, properties change as you go down a group ![]() Over time, this will help them build up their own picture of the periodic table, which emphasises the key points. As keywords, ideas and elements are met each lesson, students add them into their table. Provide students with a blank periodic table. After repeating this with a number of elements, they will soon start to build up a picture and discover that metals are on the left-hand side of the table and the non-metals on the right. Then ask them to find the symbol on the periodic table. Introduce students to a range of different elements in the table by asking them to classify them as metals or non-metals. So, if you wanted to buy some butter, you would need to know this is a dairy product and go to the dairy aisle. In a supermarket, food is grouped in different aisles according the characteristics and properties of the food – for example: fruit and vegetables, bakery, meat, dairy, cereals. The layout of supermarkets is a good place to start. Start with analogies that students are likely to be familiar with, before moving on to less familiar examples. We can use different classification systems from everyday life to help students understand how the periodic table classifies elements. The position of an element in the periodic table helps chemists to decide whether it will be useful for a particular job.ĭownload a collection of ideas and activities from the Education in Chemistry website: rsc.li/2Z81sap Ideas for your classroomĪnalogies are a powerful way to help students understand the complexities of chemistry. They have similar chemical reactions with, for example, oxygen. The elements in a group show patterns in their physical properties such as melting or boiling point, thermal conductivity and density. ![]()
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