[fullwidth background_color=”” background_image=”” background_parallax=”none” enable_mobile=”no” parallax_speed=”0.3″ background_repeat=”no-repeat” background_position=”left top” video_url=”” video_aspect_ratio=”16:9″ video_webm=”” video_mp4=”” video_ogv=”” video_preview_image=”” overlay_color=”” overlay_opacity=”0.5″ video_mute=”yes” video_loop=”yes” fade=”no” border_size=”0px” border_color=”” border_style=”” padding_top=”20″ padding_bottom=”20″ padding_left=”0″ padding_right=”0″ hundred_percent=”no” equal_height_columns=”no” hide_on_mobile=”no” menu_anchor=”” class=”” id=””][title size=”2″ content_align=”left” style_type=”none” sep_color=”” margin_top=”” margin_bottom=”” class=”” id=””]Describe and draw two-dimensional shapes, with and without digital technologies (ACMMG042)
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LO: To compare and order shapes and objects.

Know:

the basic 2-D shapes
how to use scaled instruments to measure objects.
the definition of ascending and descending order.
the language/vocabulary used to describe 2-D shapes (edges, corners)

Understand:

that 2-D shapes have different properties and identification features.

Do:

I can describe and draw 2-D shapes.

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Different Types of 2-D Shapes

Describing 2-D Shapes

One way to describe 2-D shapes is by determining whether they are a polygon or non-polygon.

Polygons are made completely out of straight lines.

Non-polygons have curved lines or are not completely closed.

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We can also describe 2-D shapes by the number of sides that they have.

A 3-sided shape is called a triangle.

A 4-sided shape is called a quadrilateral. Quad usually means “4”.

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Interactives

Teaching Ideas

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