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1x1 BRICK SUPPORT

Now build structures using two bricks, starting with a single 1x1 brick as a support. In some cases the structure can no longer stand upright - it falls over, or TOPPLES. Record each structure graphically and record whether each STANDS or TOPPLES:

		1x1 brick on 1x1 base STANDS
		2x1 brick on 1x1 base STANDS
		3x1 brick on 1x1 base 1st combination (side) TOPPLES
		3x1 brick on 1x1 base 2nd combination (center) STANDS
		4x1 brick on 1x1 base 1st combination (side) TOPPLES
		4x1 brick on 1x1 base 2nd combination (center) STANDS
		6x1 brick on 1x1 base 1st combination (side) TOPPLES
		6x1 brick on 1x1 base 2nd combination (one block in) TOPPLES
		6x1 brick on 1x1 base 3rd combination (center) STANDS

Does the chart above include all the combinations for two bricks, where the base is a 1x1 brick? Shouldn't there be four possibilities for the 4x1 brick on a 1x1 base and not just two? Why or why not?

Using our observations, can you form a good rule about when a brick on a 1x1 base STANDS or TOPPLES? Make sure to record the rule you create. It should look something like this:

A two-brick structure with a 1x1 base will STAND when... and will TOPPLE when...

On to page 3!