Pillars of strength -- Working out the wiggles -- Constructing with straws -- Straws take a stand -- Sky high -- Thanks for your support! -- Bridge it -- Student-made measuring tools -- Rulers line up -- Links to length -- Are you a square? -- Bear facts -- Cups 'n' stuff -- Peddle the metal -- Filling stations -- Pleased as punch -- Minute minders -- From wedges to wangles -- Waxed wangles -- Wangle round up -- Shaping up -- Slice me twice -- Möbius bands -- Geo-panes -- Edge to edge -- Net-sense -- Wreck-tangles -- Paper pinchers -- Circle sighs -- Playground geometry -- Once around the track -- Meter tape