With the new school year, Illinois joins 40 other states in teaching Common Core.
Common Core's higher learning standards will establish clear expectations for what students should learn in Mathematics and English Language Arts at each grade level.
Peoria District 150's Math and Science Coordinator Susan Gobeyn tells WMBD's Greg and Dan that understanding and applying Math concepts is key to Common Core.
"Reasoning mathematically, being able to think mathematically is important as well", says Gobeyn.
Common Core's biggest changes in Math are in 3rd through 5th grades, when students will build on balancing fluency, understanding Math concepts, and applying those concepts to problem solving.
Gobeyn says she spent several weeks training District 150 Math teachers about Common Core concepts
last year in preparation for teaching them now.
District 150 Literacy and Social Studies Coordinator Shameika Sykes-Salvador says the English Language Arts component of Common Core focuses less on Literature, and more on informational or technical reading and writing that will prepare students for college and eventually the workforce.
Syke-Salvador says English Language Arts foundational skills haven't really changed, but literacy is now taking place in Social Studies and Science classes, and throughout the school building.