Outdoor maths: An interesting angle
23 June 2008Add to My Folder
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Help your class to discover maths in the real world by taking your lessons outside
Investigate angles outside
The outdoors provides us with the space to teach maths in creative and imaginative ways. This is not just enrichment, but at the core of enabling learners to see maths as relevant to the world around them. The change of environment can, in particular, help to make learners feel less threatened and perhaps more willing to offer suggestions and just ‘have a go’.
What is an angle?
In the first of our outdoor maths series, we look at angles in the outside world. Although it might be tempting to rush straight outside, you’ll first need to establish children’s prior knowledge. For example, can they define what an angle is? Can they name any angles? Which sorts of angles can they recognise? So, before heading out for a bit of organic maths, children will need to define, recognise and name angles to get the most out of their experience.
Elicit that an angle measures the amount of turn. The corner point is called the vertex and the arms are called rays. There are five angles to learn:
Types of angle
- Acute angle— An angle less than 90 degrees.
- Right angle— An angle that is exactly 90 degrees.
- Obtuse angle— An angle greater than 90 degrees but less than 180 degrees.
- Straight angle— An angle that is 180 degrees exactly.
- Reflex angle— An angle that is greater than 180 degrees.