A House education panel on Thursday began delving into the issue of raising teacher pay, with a key lawmaker saying that while “everything is on the table,” the panel still needs to figure out where the money would come from.Rep. Chris Latvala, a Clearwater Republican who chairs the House PreK-12 Appropriations Subcommittee, said his panel has been asked by House leaders to find about $500 million in potential cuts as part of a broader budget exercise. But that exercise also could help determine if a teacher-pay package would be viable.