In Maths this week, we are learning about angles and today we were specifically looking at what a right angle is and how to identify one. We started by making a right angles measurer: this involved folder a sheet of paper twice and lining up the corners with angles to see if they match. If the corner of the paper matches the angle being measured, we can confidently say it’s a right angle. Using our right angle measurer, we investigated objects around the classroom to determine how many right angles we have around us. We found right angles in the corners of the whiteboard, the corners of the display board, the corners of books, the corners of the window frames and in may other places.
We tried to describe what a right angle is and we decided that an ‘L’ shape where two lines meet is the best way to describe it. But what if the ‘L’ shape is the wrong way round or upside down? Of course it’s still a right angle! We then looked at shapes on the board and asked ourselves if we could find right angles inside the shape? One of the shapes was a rectangle which meant that all four corners were right angles but the other one had smaller (pointier) angles, which didn’t match the right angle measurer.
Once we had investigated the simple shapes, we looked at a more complicated sports pitch and some shapes which had right angles outside the shape. Those were clearly there to trick us. After lots of investigation, it was time to test our knowledge against the Power Maths books and we were faced with even more complicated shapes in there! Next, we’ll be looking at smaller/bigger angles and measuring/drawing angles! Well done for your investigations today Year 3!
