Properties of Shape - Triangles - Planning

In a Year 5 summer lesson on the properties of shapes, students embark on a geometric journey to explore and classify different types of triangles. The lesson starts with a review of polygons and then delves into the world of triangles, focusing on isosceles, scalene, and equilateral types. The children are encouraged to engage with various 2-D shapes and use rulers to measure sides, enhancing their ability to correctly identify each triangle type. Key vocabulary such as 'sides', 'angles', and 'polygon' is introduced, with resources like vocabulary cards and worksheets provided to support learning. A practical sorting activity helps students differentiate between polygons and non-polygons, reinforcing the definition of a polygon, which they recite together. The lesson continues with partner discussions and a presentation that includes a 'Triangle song' to help solidify the properties of each triangle type.

As the lesson progresses, children apply their understanding by labelling images of isosceles, scalene, and equilateral triangles, noting the unique properties of each. They compare and contrast different triangles, discussing what is similar and what is distinct about them. Independent learning is facilitated through differentiated worksheets that cater to varying levels of comprehension, from working towards the expected level to achieving greater depth. Students are tasked with drawing examples of each type of triangle, with some requiring additional support to recall the specific properties. The lesson concludes with a reflective 'Give me five' activity where students consider what they've learned, the skills they've employed, and any challenges faced. This helps them consolidate their knowledge about the classification of triangles and the importance of orientation in identifying them correctly. The lesson aims to leave students with a firm grasp of the fundamental properties of isosceles, scalene, and equilateral triangles.