Tetrahedra
Activity content:
An activity available in three levels for years 3 - 10
Taking approximately 1 - 2 hours
When an engineer wants a strong, stiff two dimensiona shape they will use a triangle. For three dimensional structure the choice becomes Tetrahedra. This activity explores this in a way which is fun. It calls for teamwork, cooperation, organsation and imagination, whilst introducing an element of competition.
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Standard Activity: Level 1. Suitable for Year 3 upward
Teams of children compete to build the highest stable structure using standard length pieces of dowel and elastic bands in a given time. This activity takes approximately 1 - 1 1/2 hours.
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Trading: Level 2. Suitable for Year 5 upward
Teams are given an insufficient number of sticks in a mixture of colours, but must build the structure in a single colour. Further sticks are available by trading with other temas or with a 'bank'. This activity takes approximately 1 - 2 hours
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Bridges: Level 3. Suitable for Year 10 upward
Teams are challenged to span a chasm by a self-supporting bridge constructed with sticks and elastic bands. The structure must not sag and there must be a recognisable roadway. The longest bridge wins!!
This activity demands a high degree of vision, planning, good organsation, delegation and coordination.
This activity takes approximately 2 + hours.