Several different processes of varying effectiveness can be used to purify air. 1  Thermodynamic sterilization (TSS) - This technology uses heat sterilization via a ceramic core with micro capillaries, which are heated to 200 Â°C (392 Â°F).
What is Common Core? The Common Core State Standards Initiative is a state-led effort that established a single set of educational standards for kindergarten through 12th grade in English language arts and mathematics.
The Math Common Core State Standards provide clear goals defining what students should understand and be able to do at every grade level. On every math page, there is a standards overview table summarizing the Common Core Standards' math learning goals and skills for that grade and content area. The Common Core State Standards for Mathematical Practice establish eight main math skills that K12 educators should develop in their students: 1  Make sense of problems and persevere in solving them. 2  Reason abstractly and quantitatively.