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GM2-4: Identify and describe the plane shapes found in objects.

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Elaboration on this Achievement Objective

This means students will be able to identify plane (flat) shapes in objects and structures around them and consider why the given shape is suitable for its purpose, for example wheels are circular so they roll freely, floors are usually rectangles because they are easier to build and things fit efficiently, etc. They should consider how three dimensional objects are built from flat shapes through pulling packets apart and constructing solids of their own, for example nets for cubes.

 

Teaching resources for this Achievement Objective
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Big and Small

Level Two
Integrated
Rich learning activities
The purpose of this activity is to engage students in applying their knowledge of fractions in a geometric context.
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Classifying two-dimensional shapes

Level Two
Geometry and Measurement
The purpose of this activity is to support students classifying shapes by their properties.
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Foil fun

Level Two
Geometry and Measurement
Units of Work
In this unit students investigate and describe the features of solid shapes, learn the names for common solid shapes, and are introduced to the construction of nets for these shapes.
  • Explore and describe the faces, edges, and corners of 2D and 3D objects.
  • Make, name, and describe polygons and other plane shapes.
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Honeycomb

Level Two
Geometry and Measurement
Units of Work
In this unit students sort and explore two-dimensional and three-dimensional geometric shapes, identify and describe their distinguishing features and come to appreciate the efficiency of the tessellating hexagon in meeting the needs of honeybees.
  • Identify distinguishing features of 2D (plane) shapes using the language of sides and corners.
  • Identify distinguishing features of 3D shapes using the language of faces, edges, vertex/vertices.
  • Explore hexagons, recognising that they tessellate.
  • Make hollow prism shapes and describe their features.
  • Rese300
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Identifying features

Level Two
Geometry and Measurement
The purpose of this activity is to support students in identifying features of common two-dimensional shapes. There is particular focus on corners, sides, and roundness.
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Losing Your Marbles

Level Two
Integrated
Figure It Out activities
These are level 2 number and geometry problems from the Figure It Out series.A PDF of the student activity is included.

find triangles within a shape (Problem 1)

use addition strategies to solve problems (Problems 2 and 4)

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Naming flat shapes and identifying features

Level Two
Geometry and Measurement
The purpose of this activity is to support students in naming common two-dimensional shapes using mathematical terms. Students also explore where in real-life they encounter these shapes.
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Odd Solids

Level Two
Geometry and Measurement
Rich learning activities
The purpose of this activity is to engage students in identifying and sorting solids by the plane shapes of their faces.
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Picasso

Level Two
Geometry and Measurement
Units of Work
This unit uses the context of Picasso's art to explore two and three-dimensional shapes, to recognise their features, and to develop appropriate language to discuss Picasso's and their own artworks.
  • Sort geometric blocks and explain their groupings.
  • Understand and use geometric language to describe the features of two-dimensional (plane) shapes.
  • Create an artwork using plane shapes.
  • Recognise how shape is an important feature of Picasso’s artworks.
  • Understand and describe the features of a cube.
  • Cre300
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Pieces of Eight

Level Two
Integrated
Figure It Out activities
These are level 2 number and shape problems from the Figure It Out series.A PDF of the student activity is included.

use a system to solvea combination problem (Problem 1)

solve addition problems using addition facts (Problem 2)

counter corners and edges in a 3 dimensional shape (Problem 3)

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Post It!

Level Two
Geometry and Measurement
Figure It Out activities
This is a Level 2 Geometry activity from the Figure It Out Series.A PDF of the student activity is included.

identify two dimensional faces on three dimensional shapes

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Roll Over

Level Two
Level Three
Geometry and Measurement
Figure It Out activities
This is a Level 2 and Level 3 Geometry activity from the Figure It Out Series.A PDF of the student activity is included.

identify face shapes on a threee dimensional shape

make a net for a cube.

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Shapely Sea Creatures

Level Two
Geometry and Measurement
Figure It Out activities
This is a level 2 geometry activity from the Figure It Out theme series. A PDF of the student activity is included.

identify two dimensional shapes in drawings

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Shapes in Life

Level Two
Geometry and Measurement
Figure It Out activities
This is a Level 2 Geometry activity from the Figure It Out Series.A PDF of the student activity is included.

identify two dimensional and three dimensional shapes in the environment

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Sorting shapes by features and properties

Level Two
Geometry and Measurement
The purpose of this activity is to support students in sorting a set of 2D shapes by the properties of the shapes.
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Sorting shapes by similarity and difference

Level Two
Geometry and Measurement
The purpose of this activity is to support students using their understanding of properties to establish the differences and similarities between and among shapes. Similarity is the basis of classifying shapes by their defined properties and difference is important for recognising non-examples.
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Tricky Triangles

Level Two
Geometry and Measurement
Figure It Out activities
This is a Level 2 Geometry activity from the Figure It Out Series.A PDF of the student activity is included.

recognise triangles in patterns

make a tessellating pattern using two dimensional shapes