Teacher positions will be slashed, class sizes will balloon, and some kids will have to walk to school instead of riding the bus as school districts in the Denver area make cuts because of failed ballot issues. Half of Colorado's record-breaking school bond issues failed. Voters on Nov. 4 denied $1.4 billion in bond projects. That was 14 of 27 bond issues. Jefferson County voters defeated a $350 million bond proposal. Voters in Adams 12 school district rejected an $80 million bond issue. The bond issue would have constructed two elementary schools in the fast-growing northern part of the district. Douglas County' voters rejected a $395 million bond for 10 new elementary schools and renovation of 50 other schools in a district that adds 2,000 students a year. Brighton's School District 27J $125 million bond failed; it would have built two elementary schools and two high schools.