- Year 3
Make and draw triangles on circular geoboards
I can make and draw triangles on circular geoboards.
- Year 3
Make and draw triangles on circular geoboards
I can make and draw triangles on circular geoboards.
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Lesson details
Key learning points
- Three points on a geoboard can be joined to make a triangle.
- Triangles can have different properties.
- Different triangles can be created on the same geoboard.
Keywords
Vertex / vertices - A vertex is the point where two lines meet. The plural is vertices.
Perpendicular - Two lines which meet at a right angle are perpendicular.
Common misconception
Pupils may overgeneralise about the way a triangle should look e.g. not recognising a scalene triangle as a triangle.
Throughout the lesson, model different triangles in different orientations. Ensure pupils see boundary examples such as scalene triangles with one very small acute angle, or long and thin isosceles triangles.
To help you plan your year 3 maths lesson on: Make and draw triangles on circular geoboards, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 3 maths lesson on: Make and draw triangles on circular geoboards, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 2 maths lessons from the Parallel and perpendicular sides in polygons unit, dive into the full primary maths curriculum, or learn more about lesson planning.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Match the shape name to the number of vertices it has.
4 vertices
6 vertices
10 vertices
Q2.Tick the shape which is a trapezium.
Q3.True or false? These lines are parallel to one another.
Q4.Complete the sentence. This polygon has pair(s) of parallel sides.
Q5.The pentagon has been decomposed into two polygons which have the same name. What is the name of the polygon?
Q6.Complete the sentence. A pair of sides meet to make a right angle.
Assessment exit quiz
6 Questions
Q1.Complete the sentence. This is a triangle and it has vertices.
Q2.True or false: Alex has drawn a pair of perpendicular lines on this circular geoboard.
Q3.Complete the sentence. This is a triangle and it has pair(s) of perpendicular sides.
Q4.Complete the sentence. This is a triangle and it has pair(s) of perpendicular sides.
Q5.Select the statements that are true for this polygon drawn on a circular geoboard.
Q6.Select the vertices that could be joined to form a right-angled triangle.
