# On Core Mathematics (K-12)

Common Core Standards are the newest in measuring student success with core subjects. These are standards that are being adopted by the states and address standards for both content and practice. This math series is written to supplement your math curriculum to ensure that your student meets the standards for math.

Each level contains lessons with content for all Common Core Standards. The Common Core Standards for practice cover 8 different areas - make sense of problems and persevere in solving them, reason abstractly and quantitatively, construct viable arguments and critique the reasoning of others, model with mathematics, use appropriate tools strategically, attend to precision, look for and make use of structure, and look for and express regularity in repeated reasoning. The content standards for K-6 are counting & cardinality, operations & algebraic thinking, number & operations in base 10, measurement & data, geometry, number & operations in fractions, ratios & proportional relationships, number systems, expressions & equations, and statistics & probability. You'll notice that these skills are foundational to the application and mastery of higher levels of math.

The Teacher Edition contains lesson background for all Common Core topics, and offer teacher support for all lessons. Common Core Standards for each lesson are noted, small format student pages are included with answers along with objectives, essential questions, vocabulary, materials list, and prerequisites to that particular lesson or topic. These lessons offer flexibility for incorporation into your weekly curriculum, and the number of lessons varies from level to level. The Student Workbook is black and white and each lesson is two pages in length. Each lesson begins with an explanation and model of the concept and is followed by practice for the concept.

Houghton Mifflin has now published assessments to complement the On Core Mathematics program. There is an assessment for every lesson in the student books. Each assessment is three to five questions in length (1 page), and includes both fill-in-the-bubble multiple choice questions and at least one word problem. Each assessment is labeled for the corresponding standard, and the answer key is found at the back of the book. The purchaser is given permission for copying if using On Core Mathematics as a program.

Be sure you don't miss anything and there are no gaps in your math education. Cover the Common Core Standards, no matter what math curriculum you might be using.

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