Grade 1 » Introduction | Common Core State Standards Initiative
网页In Grade 1, instructional time should focus on four critical areas: (1) developing understanding of addition, subtraction, and strategies for addition and subtraction within 20; (2) developing understanding of whole number relationships and place value, including grouping in tens and ones; (3) developing understanding of linear measurement and ...
High School: Algebra | Common Core State Standards Initiative
网页CCSS.Math.Content.HSA.REI.A.1 Explain each step in solving a simple equation as following from the equality of numbers asserted at the previous step, starting from the assumption that the original equation has a solution. Construct a viable argument to justify a solution method.
Grade 1 » Operations & Algebraic Thinking | Common Core State …
网页Understand and apply properties of operations and the relationship between addition and subtraction. CCSS.Math.Content.1.OA.B.3. Apply properties of operations as strategies to add and subtract. 2 Examples: If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.)
Progressions Documents for the Common Core State Standards for Mathematics
网页2013年8月23日 · The Common Core State Standards in mathematics were built on progressions: narrative documents describing the progression of a topic across a number of grade levels, informed both by research on children's cognitive development and by the logical structure of mathematics.
Coherence Map - Achieve the Core
网页The Coherence Map shows the connections between Common Core State Standards for Mathematics.
Mathematics: Focus by Grade Level - Achievethecore.org
网页The Common Core and other college- and career-ready (CCR) standards call for a greater focus in mathematics. Rather than racing to cover topics in a mile-wide, inch-deep curriculum, CCR standards require us to significantly narrow and deepen the way time and energy are spent in the math classroom.
网页The Common Core Standards articulate rigorous expectations in the areas of mathematics, reading, writing, and speaking and listening in order to prepare students to be college- and career-ready. These standards identify the
Common Core State Standards | Math | CK-12 Foundation
网页Browse concepts and FlexBooks that are aligned to Common Core Math Standards.
The Common Core Explained - Education Week
网页2015年9月30日 · Common-core math seeks to build a coherent sequence of topics and concepts across grades, and aims not only for procedural skill and fluency, but also mastery in applying math skills and in...
Elementary Common Core Resources - National Council of …
网页How do you help your students demonstrate mathematical proficiency toward the learning expectations of the Common Core State Standards (CCSS)? This teacher guide illustrates how to sustain successful implementation of the CCSS for mathematics for grades 3–5.