| Activity Outcome | Recognising and extending patterns based on triangles. |
| MTS Set | 3
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| NSW Curriculum | SGS2 Two-dimensional Shape |
| Topics | 2D Shape
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| Keywords | Draw, Transformation, Pattern, 2D Shape |
| Grouping | Independent and pairs. |
| Resources | Ruler, coloured pencils. Copy activity sheet A on an overhead sheet, an overhead projector. |
| Lesson Notes | - Direct students to activity sheet A and ask: What is the shape used to make each pattern on this page? Can you show me with your finger where you might draw the next triangle in the first pattern?
- Direct students to continue each pattern.
- Provide the opportunity for students to meet in pairs to check their patterns. Ask: (Reflection) Can you agree that you have both finished each pattern correctly?
- Direct students to activity sheet B and ask: Can you create the start of a triangle pattern on each grid? When each pattern is ready to be repeated stop drawing as a partner is going to finish it for you.
- Provide the opportunity for students to swap patterns with a partner.
- Students return completed patterns to their partner. Ask: Has your partner completed each pattern correctly? Why do you think that?
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| Reflections | See Lesson Notes.
|
| Integration Links | The Arts: Finding and creating patterns based on triangles.
|
| Internet Links | http://www.math.com/school/subject3/lessons/S3U2L3GL.html Excellent site for background material on geometric ideas.
Suitable for teachers and year 5 up.
http://www.aaamath.com/geo318-polygons-sides.html Interactive activity where students recognise the features of polygons from triangles to decagons.
http://www.mathcats.com/explore/polygons.html Interactive activity where students can experiment placing common shapes together to make new shapes and patterns.
http://ejad.best.vwh.net/java/patterns/patterns_j.shtml Interactive activity where students can experiment placing common shapes together to make new shapes and patterns.
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| Answers | Not applicable |
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