OBBL Ideas
Bricks and Girders


* Steel girder blocks can often support each other. When girders are "glued" together, their joints will become red.

* Both ends of a girder must be supported.

* It helps to build a girder high on the page and let it fall until it reaches its supports. Sometimes you need to patch a long girder with new pieces if it separates while it is falling.

* You can suspend some girder pieces from other girder pieces.

* If you end up with a few misplaced girder pieces, you can erase them with the white square block.

to return to the OBBL Architecture Blocks

The girders-and-bricks picture on this page was designed by Maurici Carbó Jordi.
Math Cats' OBBL Idea pages © copyright 2002 -   by Wendy Petti of Math Cats.   All Rights Reserved.