Three Facts

One strategy for the three facts builds on the doubles.  For a fact like 3 X 8, students can think ‘double 8, plus another 8’.

This should be shown to students visually or concretely.  One activity I like to do is to cut a large array out, as to the right.
You can then fold over one of the rows.  Students can see the 2 X 8 on the front, and if they flip it over…
they can see the extra group of 8 on the back.

Large Solid Array 

Useful for demonstrating 3X facts pictorially.

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