Hot-button issue: Common Core standardized tests 0 02.04.2021 21:01 CBSNews.com More than 250,000 students across the country have opted out of taking the standardized tests which measure proficiency in math and language arts. Julianna Goldman reports how the Common Core debate is playing out on the campaign trail. Партнёры Smi24.net Все новости за 24 часа Музыкальные новости Агрегатор новостей 24СМИ