Transcript Common Core State Standards for Mathematics: Key Shifts
Introduction to the Math Shifts of the Common Core State Standards
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The Background of the Common Core
Initiated by the National Governors Association (NGA) and Council of Chief State School Officers (CCSSO) with the following design principles:
• Result in College and Career Readiness • Based on solid research and practice evidence • fewer, higher, and clearer achievethecore.org
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College Math Professors Feel HS students Today are Not Prepared for College Math
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What The Disconnect Means for Students
• Nationwide, many students in two-year and four-year colleges need remediation in math.
• Remedial classes lower the odds of finishing the degree or program.
• We need to set the agenda in high school math to prepare more students for postsecondary education and training.
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The CCSS Requires Three Shifts in Mathematics
1.
2.
3.
Focus: Focus strongly where the Standards focus.
Coherence: Think across grades and link to major topics within grades. Rigor: In major topics, pursue conceptual
understanding,
procedural skill and fluency, and application. achievethecore.org
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Shift #1: Focus Strongly Where the Standards Focus
• Significantly narrow the scope of content and deepen how time and energy is spent in the math classroom.
• Focus deeply on what is emphasized in the standards, so that students gain strong foundations.
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Focus
• Move away from "mile wide, inch deep" curricula identified in TIMSS.
• • Learn from international comparisons.
Teach less, learn more.
“ Less topic coverage can be associated with higher scores on those topics covered because students have more time to master the content that is taught.
” – Ginsburg et al., 2005 achievethecore.org
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The shape of math in A+ countries
Mathematics topics intended at each grade by at least two thirds of A+ countries Mathematics topics intended at each grade by at least two thirds of 21 U.S. states
1 Schmidt, Houang, & Cogan,
“
A Coherent Curriculum: The Case of Mathematics.
”
(2002).
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Traditional U.S. Approach
K 12 Number and Operations Measurement and Geometry Algebra and Functions Statistics and Probability
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Focusing Attention Within Number and Operations
Operations and Algebraic Thinking → Expressions and Equations → Number and Operations— Base Ten → Number and Operations— Fractions → The Number System → Algebra
K 1 2 3
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4 5 6 7 8 High School
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Key Areas of Focus in Mathematics
Grade
K–2 3–5 6 7
Focus Areas in Support of Rich Instruction and Expectations of Fluency and Conceptual Understanding
Addition and subtraction - concepts, skills, and problem solving and place value Multiplication and division of whole numbers and fractions – concepts, skills, and problem solving Ratios and proportional reasoning; early expressions and equations Ratios and proportional reasoning; arithmetic of rational numbers 8 Linear algebra and linear functions achievethecore.org
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Group Discussion Shift #1: Focus strongly where the Standards focus.
In your groups, discuss ways to respond to the following question,
“
Why focus? There’s so much math that students could be learning, why limit them to just a few things?
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Engaging with the shift: What do you think belongs in the major work of each grade?
Grade K Which two of the following represent areas of major focus for the indicated grade?
Compare numbers Use tally marks Understand meaning of addition and subtraction
1 2 3 4 5 6 7 8 Alg.1
Alg.2
Add and subtract within 20 Measure lengths indirectly and by iterating length units Create and extend patterns and sequences Work with equal groups of objects to gain foundations for multiplication Understand place value Identify line of symmetry in two dimensional figures Multiply and divide within 100 Examine transformations on the coordinate plane Understand and calculate probability of single events Identify the measures of central tendency and distribution Generalize place value understanding for multi-digit whole numbers Understand the place value system Develop understanding of fractions as numbers Extend understanding of fraction equivalence and ordering Apply and extend previous understandings of multiplication and division to multiply and divide fractions Apply and extend previous understandings of arithmetic to algebraic expressions Understand ratio concepts and use ratio reasoning to solve problems Apply and extend previous understandings of operations with fractions to add, subtract, multiply, and divide rational numbers Identify and utilize rules of divisibility Use properties of operations to generate equivalent expressions Standard form of a linear equation Define, evaluate, and compare functions Quadratic inequalities Linear and quadratic functions Exponential and logarithmic functions achievethecore.org
Polar coordinates Generate the prime factorization of numbers to solve problems Understand and apply the Pythagorean Theorem Creating equations to model situations Using functions to model situations 16
Shift #2: Coherence: Think Across Grades, and Link to Major Topics Within Grades
• Carefully connect the learning within and across grades so that students can build new understanding on foundations built in previous years. • Begin to count on solid conceptual understanding of core content and build on it. Each standard is not a new event, but an extension of previous learning.
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Coherence: Think Across Grades
Example: Fractions
“ The
coherence
and sequential nature of mathematics dictate the foundational skills that are necessary for the learning of algebra. The most important foundational skill not presently developed appears to be proficiency with fractions (including decimals, percents, and negative fractions).
The teaching of fractions must be acknowledged as critically important and improved before an increase in student achievement in algebra can be expected
.
” Final Report of the National Mathematics Advisory Panel (2008, p. 18) achievethecore.org
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Informing Grades 1-6 Mathematics Standards Development: What Can Be Learned from High-Performing Hong
Kong, Singapore, and Korea? American Institutes for Research (2009, p. 13) achievethecore.org
Grade 4 CCSS
4.NF.4. Apply and extend previous understandings of multiplication to multiply a fraction by a whole number.
Grade 5
5.NF.4. Apply and extend previous understandings of multiplication to multiply a fraction or whole number by a fraction.
5.NF.7. Apply and extend previous understandings of division to divide unit fractions by whole numbers and whole numbers by unit fractions.
Grade 6
6.NS. Apply and extend previous understandings of multiplication and division to divide fractions by fractions.
6.NS.1. Interpret and compute quotients of fractions, and solve word problems involving division of fractions by fractions, e.g., by using visual fraction models and equations to represent the problem.
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Alignment in Context: Neighboring Grades and Progressions
One of several staircases to algebra designed in the OA domain.
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Coherence: Link to Major Topics Within Grades
Example: Data Representation
Standard 3.MD.3
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Coherence: Link to Major Topics Within Grades
Example: Geometric Measurement
3.MD, third cluster achievethecore.org
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Group Discussion Shift #2: Coherence: Think across grades, link to major topics within grades
In your groups, discuss what coherence in the math curriculum means to you. Be sure to address both elements—coherence within the grade and coherence across grades. Cite specific examples.
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Engaging with the Shift: Investigate Coherence in the Standards with Respect to Fractions
In the space below, copy all of the standards related to multiplication and division of fractions and note how coherence is evident in these standards. Note also standards that are outside of the Number and Operations—Fractions domain but are related to, or in support of, fractions.
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Shift #3: Rigor: In Major Topics, Pursue Conceptual Understanding, Procedural Skill and Fluency, and Application
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Rigor
• The CCSSM require a balance of:
Solid conceptual understanding
Procedural skill and fluency
Application of skills in problem solving situations
• Pursuit of all three requires equal intensity in time, activities, and resources.
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Solid Conceptual Understanding
• Teach more than “ how to get the answer ” and instead support students ’ ability to access concepts from a number of perspectives • Students are able to see math as more than a set of mnemonics or discrete procedures • Conceptual understanding supports the other aspects of rigor (fluency and application) achievethecore.org
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Fluency
• • The standards require speed and accuracy in calculation.
Teachers structure class time and/or homework time for students to practice core functions such as single digit multiplication so that they are more able to understand and manipulate more complex concepts achievethecore.org
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Required Fluencies in K-6 Grade
K 1 2 3 4 5 6
Standard
K.OA.5
1.OA.6
2.OA.2
2.NBT.5
3.OA.7
3.NBT.2
4.NBT.4
5.NBT.5
6.NS.2,3
Required Fluency
Add/subtract within 5 Add/subtract within 10 Add/subtract within 20 (know single-digit sums from memory) Add/subtract within 100 Multiply/divide within 100 (know single-digit products from memory) Add/subtract within 1000 Add/subtract within 1,000,000 Multi-digit multiplication Multi-digit division Multi-digit decimal operations achievethecore.org
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Fluency in High School
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Application
• Students can use appropriate concepts and procedures for application even when not prompted to do so.
• Teachers provide opportunities at all grade levels for students to apply math concepts in “ real world ” situations, recognizing this means different things in K-5, 6-8, and HS.
• Teachers in content areas outside of math, particularly science, ensure that students are using grade-level appropriate math to make meaning of and access science content.
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Group Discussion Shift #3: Rigor: Expect fluency, deep understanding, and application
In your groups, discuss ways to respond to one of the following comments:
“
These standards expect that we just teach rote memorization. Seems like a step backwards to me.
”
Or
“
I’m not going to spend time on fluency—it should just be a natural outcome of conceptual understanding.
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Engaging with the Shift: Making a True Statement
Rigor = ______ + ________ + _______
This shift requires a balance of three discrete components in math instruction. This is not a pedagogical option, but is required by the Standards. Using grade __ as a sample, find and copy the standards which specifically set expectations for each component.
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It Starts with Focus
• The current U.S. curriculum is "a mile wide and an inch deep." • Focus is necessary in order to achieve the rigor set forth in the standards.
• Remember Hong Kong example: more in-depth mastery of a smaller set of things pays off.
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The Coming CCSS Assessments Will Focus Strongly on the Major Work of Each Grade
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Content Emphases by Cluster: Grade Four
Key: Major Clusters; Supporting Clusters; Additional Clusters achievethecore.org
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Cautions: Implementing the CCSS is...
• • • • Not about “ gap analysis ” Not about buying a text series Not a march through the standards Not about breaking apart each standard achievethecore.org
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Resources
www.achievethecore.org
www.illustrativemathematics.org
http://pta.org/parents/content.cfm?ItemNumber=2583 &RDtoken=51120&userID commoncoretools.me
www.corestandards.org
http://parcconline.org/parcc-content-frameworks http://www.smarterbalanced.org/k-12 education/common-core-state-standards-tools resources/ achievethecore.org
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Structure of the Standards
•
Domains
are large groups of related standards. Domains change from grade to grade to reflect the changing focus of each grade. Standards from different domains may sometimes be closely related. •
Clusters
are groups of related standards. Each domain has 1 – 4 clusters. Standards from different clusters may sometimes be closely related.
•
Standards
define what students should understand and be able to do.
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Domain Cluster Standard
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Identify the Standard
5.NBT.4
Grade Domain Standard Number
3.OA.C
Grade Domain Cluster achievethecore.org
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