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A triangle is a three-sided two-dimensional shape. Triangles have three straight sides and three vertices. The angles inside a triangle all add up to 180°.
Your child will be introduced to triangles from the start of primary school, but it’s in years 3 and 4 they’ll be identifying different types of triangle based on their properties. The main types are:
You can discover more about triangles by heading over to the Twinkl Teaching Wiki.
When first introducing small children to triangles, the Triangle Song might be the perfect way to engage them and help them remember the key facts. Explore the different types of triangles by checking out this poster or this informative PowerPoint (it contains a fun ‘What am I?’ activity to help strengthen your child’s understanding). Can your child sort the different types of triangles in this classifying activity? Get the whole family involved with guessing the type of triangle using these challenge cards.
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