Everyone loves domes- ESPECIALLY kids! The devil in their construction however relates to visualising their assembly (often not easy - even for adults!),organising cost effective materials and securing the struts!
Here's a simple 1V version that uses bamboo slid into black garden irrigation hose offcuts. These are (single) gutter bolted at the hose overlaps -the structure is both rigid & quickly dismantled for storage. All 24 struts are of identical length & thickness.
Step 1: Big Kids - Smaller Kids!
Never mind BIG kids- this Instructable is intended to stimulate youngsters! Aside from supervision, adults are only really needed to hold struts at the highest point (& to ensure concept lollies are NOT over indulged in!)