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Listed under:  Mathematics  >  Geometry  >  Transformation (Geometry)  >  Congruence (Geometry)  >  Symmetry  >  Rotational symmetry
Online

reSolve: Authentic Problems: Expanded Square

  • TLF-IDM024876

This sequence of four lessons explores concepts around informal area and symmetry. Students design an 'expanded square' where approximately half the area of the original square is flipped to the outside. The lessons provide opportunities for students to devise and use methods to informally measure area, record their mathematical ...

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Online

reSolve: Transformations - Frieze patterns

  • TLF-IDM021072

This sequence of three lessons explores transformation and symmetry by engaging students in the design of friezes. Students are introduced to simple friezes, how reflections, rotations and translations are combined to create design elements, explore real frieze examples from furnishings in Parliament House and tyres, then ...

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Video

MathXplosion, Ep 42: Maths in nature

  • TLF-IDM024998

Maths can be found in living things and natural structures. Explore mathematical patterns in nature, such as the tessellating hexagonal units of a honeycomb, the bilateral symmetry of a leaf, the radial symmetry of a snowflake and spiderweb, and the number of right or left spirals on a pinecone or pineapple (Fibonacci numbers).

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Video

MathXplosion, Ep 34: Kite symmetry

  • TLF-IDM025006

Unfurl the secret of symmetry used in kites to make them fly! A kite in geometry looks a lot like a kite in the sky. We see that a kite is a special quadrilateral in which one of its two diagonals (long and short) is also its axis of symmetry, and if you fold the kite along that diagonal, the two halves will match up exactly ...

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Video

Axial Symmetry

  • TLF-IDM016357

An interactive applet in which students explore the effect of reflection in a variety of axes.

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