COLEBROOKDALE — The majority of the Boyertown School board Tuesday indicated support for continuing to investigate whether the district wants to implement full-day kindergarten, an undertaking which could cost as much as $4 million. During Tuesday’s board meeting, the board heard a presentation by Jane L. Coughenhour, a consultant with “Steps to Achieve” of the full-day kindergarten feasibility study undertaken by the administration at the boar…