[quote=livinincali][quote=all]Flu, common core requirements make more sense as you move to slightly more complex material.

Sixth grade handbook has a problem similar to this

Person A is asked to find the least common multiple for the following pairs: (17, 41), (31, 11), (29, 37). Person A concludes that LCM(a1, a2) can be calculated as a1 x a2, for a1, a2 > 0.
Person B is given the following pairs: (8, 32), (12, 36), (9, 45). Person B concludes LCM(a1, a2) = MAX(a1, a2).
Person C is given (14, 18), (42, 10), (22, 4) and person C comes up with LCM(a1, a2) = a1 x a2 / 2.

Are A, B, or C conclusions accurate? If not, what additional requirement(s) must a1 and a2 meet to make each formula accurate?

I thought it was good problem and it is very different from what no child left behind requirements were.[/quote]

I’m not sure I’m a huge fan of a question where the correct response ends up being a simple yes. I’d be more of a fan if the test question asked the taker to figure out an algorithm to get the LCM for the following pairs.[/quote]

That is the point of asking to figure out the additional requirements that would make the statements accurate.