What lies behind the motive to get rid of teachers; how Chicago can recruit better teachers in the face of "do not hire" designations and pay cuts; and how the free market encourages teachers to leave Chicago. Length 9.5 minutes.

The difference between a tax-increment financing district's budget and the amount of tax dollars it diverts; whether the park district could more easily implement a capital project via regular budgeting or tax-increment financing; and the last major elected official to call a corporation's relocation bluff. Length 9.3 minutes.

How Chicago Public Schools handle the re-applications of teachers in turnaround schools; the link between turnaround schools and cutting well-paid teachers; and expulsion: a teaching tool, or a convenient way to boost performance scores? Length 9.7 minutes.

How public school students get into particular high schools; why the state's board didn't enforce the law; and the effect on union organizing of federal versus state jurisdiction. Length 6.5 minutes.

What didn't make it into the timeline; the evidence for the manipulation of Carol Moseley Braun; and the list of candidates who might've beat Mayor Daley. Length 6.7 minutes.

The 43rd-27th ward boundary gerrymandered for racial purity; how the city changes property zoning; and why Mayor Emanuel apparently has immediate control of the City Council. Length 10.5 minutes.

Why using tax-increment financing to build new schools works against the school system's interests; whether tax-increment financing affects where and when to build new schools; and imagining an elected school board. Length 8.3 minutes.

Alternatives to tax-increment financing of well-endowed institutions; whether the city should spend TIF money on both the relocation of Finkl Steel and the redevelopment of its old site; and digging into increased funding of the Garfield Park TIF district. Length 9.3 minutes.

Why charter schools' ability to get rid of troublesome kids invalidates comparisons with non-charters; whether non-charters should have this same ability; and what level of unionization signals the demise of charters in Chicago. Length 8.5 minutes.

The different dynamics of black and Hispanic migration into wards; how moderating a candidate debate differs from interviewing candidates; and Ald. Stone's persistent denial of ward gerrymandering. Length 8.4 minutes.