Seems like the unions have a lot of valid concerns about how the measures in those bills will be implemented and how/if new materials/training will be provided for teachers. It also seems like legislators are mostly ignoring the unions and passing the laws anyways, so not sure how unions are gaining power over curriculums in any way. If teachers’ unions had any significant leverage on legislatures I would think teacher salaries would be higher, which other unions (e.g. dockworkers) are successful at doing.