Properties of Shape - Symmetric Figures - Planning

In the third week of the Summer term, Year 4 students delve into the properties of shapes, focusing on symmetric figures. This engaging lesson equips students with mirrors and squared paper to explore the concept of symmetry in 2D patterns. The class begins with a recap of previous learning, where children are encouraged to discuss what symmetry means and identify the term among key vocabulary. A practical activity is introduced using a presentation, where students determine whether displayed figures are symmetrical and use mirrors along potential central lines to discover reflective symmetry. They are tasked with colouring in squares to complete symmetric figures, with an emphasis on recognising both horizontal and vertical mirror lines. To consolidate their understanding, students are prompted to create their own patterns and have their partners reflect them, with the option to challenge themselves further by using diagonal lines.

The lesson continues with more hands-on activities, where children are invited to make their own symmetric figures using a variety of 2D shapes. This practical approach allows them to physically manipulate the shapes to create mirror images, with mirrors available to assist in prediction and verification of their work. Differentiated worksheets provide independent learning opportunities, where students can further their understanding by completing symmetrical shapes and patterns with guidance from key questions. These questions help students to critically think about how to achieve symmetry and to check their work. The lesson is designed to cater to different levels of understanding, from working towards expected levels to reaching greater depth, by completing patterns and shapes of varying complexity. Throughout, common misconceptions are addressed, such as the tendency to copy patterns instead of reflecting them, and confusion regarding the orientation of shapes or mirror lines.