This article is important because Wisconsin SLD legislation takes on a problem solving RtI approach.

FORBES: There Are No Silver-Bullets in Education Reform

SLD, few on the Polish right will consider it much of a loss.

ECONOMIST: Polish politics

These are critical of, and even completely opposed to joining the EU - one of the SLD's main aims.

BBC: Poisoned chalice for Poland's left?

SLD, and though its tenure has not been marked by free-market zealotry, neither has it plunged Poland back into the dark ages.

ECONOMIST: Poland

The use of Special Low Dispersion (SLD) glass accompanied by aspherical lens elements not only compensates for a variety of aberrations, but also allows for a more compact size.

ENGADGET: Sigma DP3 Merrill packs a Foveon X3 sensor and a fixed F2.8, 75mm-equivalent lens

The centre-right opposition Civic Platform (PO) is strongly in favour of an early election and the centre-left Democratic Left Alliance (SLD) has also stated that it would like an early poll.

ECONOMIST: Poland's government has collapsed

But while Mr Miller sat at the summit table on Thursday night, a group of parliamentarians from his Democratic Left Alliance (SLD) met in Warsaw and agreed to break away and form a new party.

ECONOMIST: Revived to die another day? | The

Finally, will we be having the same conversation about RtI in a few decades from now that people are having about the SLD discrepancy formula now since, similar to SLD discrepancy implementation, States can decide how to implement RtI and with RtI, each district in some states can implement it how they choose?

FORBES: There Are No Silver-Bullets in Education Reform