Properties of Shape - Angles on a Striaght - Planning

The Year 6 lesson on calculating angles on a straight line is a comprehensive session that introduces students to the concept that the sum of angles on a straight line is always 180 degrees. The class begins with a starter activity where students recall previous learning and proceed to a class teaching input that encourages partner discussion on the degrees in right angles and their sum when placed together. The children are then involved in a practical activity where they match pairs of angle cards to form straight lines. The lesson includes a variety of resources such as angle cards, worksheets, and a presentation to facilitate learning. Key vocabulary for the lesson includes terms like angle, degrees, right angle, acute angle, obtuse angle, reflex angle, and subtraction, among others. These terms are essential for understanding the properties of angles and for the calculations that will be performed during the lesson.

Independent learning is fostered through a series of activities where students apply their knowledge to find missing angles on a straight line. They practice subtraction and efficient calculation methods, using whiteboards for hands-on problem-solving. The plenary invites students to share their methods and addresses any misconceptions, such as subtraction errors or confusion between a quarter turn and a half turn. The lesson plan caters to different levels of understanding with differentiated worksheets that range from working towards expected levels to greater depth, where the complexity of the angles' measures increases. The lesson concludes with a reflective 'Give me five' exercise, where students assess what they've learned, the skills they've used, and what they found challenging, ensuring that they remember the key concept that angles on a straight line total 180 degrees.