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Algebraic Reasoning January 6, 2011
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State of Texas Assessments of Academic Readiness (STAAR) More rigorous than TAKS; greater emphasis on alignment to college and career readiness Grades 3−8 Tests are in same grades and subjects as TAKS High school Twelve end-of-course assessments in the four foundation content areas—mathematics, science, social studies, and English—replace the current high school TAKS tests
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NEW ASSESSMENT DESIGN—STAAR “Fewer, deeper, clearer ” focus Linked to college and career readiness Will emphasize “readiness” standards, defined as those TEKS considered critical for success in the current grade or subject and important for preparedness in the grade or subject that follows Will include other TEKS that are considered supporting standards and will be assessed, though not emphasized
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Readiness & Supporting Standards Readiness standards have the following characteristics: They are essential for success in the current grade or course. They are important for preparedness for the next grade or course. They support college and career readiness. They necessitate in-depth instruction. They address broad and deep ideas. Supporting standards have the following characteristics: Although introduced in the current grade or course, they may be emphasized in a subsequent year. They play a role in preparing students for the next grade or course but not a central role. They address more narrowly defined ideas.
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STAAR
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Digging Deeper Study the documents both vertically and horizontally. What conclusions can you draw? What implications does this have for our work? Share your thinking.
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STAAR: Griddable Items
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High School: 5 Griddable Items
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Math Categories
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TAKS Blueprint vs. STAAR
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Algebra Readiness Components Texas Response to Curriculum Focal Points (TxRCFP) Math Professional Development Academies MSTAR Universal Screener Project Share (MSTAR academies, OnTRACK courses, etc) Project Share RTI
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TEKS PD Workshops in 2011
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Algebraic Reasoning: A Function-Based Approach
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Why Use a Function Approach when Teaching Algebra? Read 1-page overview independently Share your thoughts with a partner. Why should we use a function approach when teaching Algebra?
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Engage Activity Simplify the expression x + x + 3 using paper and pencil only 2x + 3 How do you know if you’re correct? How can students check to make sure they have simplified an expression accurately? Input each expression into Y1 and Y2. Graph them and examine their tables What do you notice?
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Engage Activity Cont. If the expression x + x + 3 is equivalent to the expression 2x + 3, then the function f(x) = x + x + 3 and the (simplified) function g(x) = 2x + 3 have graphs that are exactly the same. ** Any thoughts?
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Research on Function-Based Algebra Article: “Improving on expectations: preliminary results from using network-supported function- based Algebra” ALL – Read 1.0 Introduction (p. 1) Partner 1 – Read 2.0 Background starting at Function-Based Algebra Revisited (pp. 2-3) Partner 2 – Read 2.0 Background starting at Supporting Generative Design with TI-Navigator (pp. 4-5)
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Moving towards a Function-Based Approach Algebra Strand in Elementary Mathematics (NCTM, PreK-12) Rich algebra experiences in the early grades Integrating technology to enrich algebraic thinking Integrating Algebra experiences in other content areas and other math strands Focus on mathematical modeling
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Algebraic Reasoning 1.Generalization from arithmetic and from patterns in all mathematics 2.Meaningful use of Symbols 3.Study of structure in the number system 4.Study of patterns and functions 5.Process of mathematical modeling, integrating the first four list items Kaput (1999)
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Technology Technology is an essential tool for learning mathematics in the 21 st century, and all schools must ensure that all their students have access to technology. Effective teachers maximize the potential of technology to develop students’ understanding, stimulate their interest, and increase their proficiency in mathematics. When technology is used strategically, it can provide access to mathematics for all students. NCTM Position Statement on the Role of Technology in the Teaching and Learning of Mathematics (March 2008)
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Tools for Enriching Algebra Experience Graphing calculators, CBRs, etc TI Navigator Computer Applications and Software (Geometer’s Sketchpad, Cabri Geometry, etc) Web (National Library of Virtual Manipulatives, NCTM Illuminations, data graphers, applets, etc) Podcasts
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Resources TIMath.com Activities Exchange (education.ti.com/exchange) TIMiddlegrades.com (TI-73 Activities) Student Zone (education.ti.com/studentzone) TI 84 New OS 2.53 T^3 Online Course (Using TINav System)
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Polynomials
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Discussion Points Why is it critical to begin exploration of an algebra concept with concrete manipulatives, then move towards the pictorial and finally the abstract? How is mathematical modeling involved? Why is it important for students to make connections between various representations of algebra concepts?
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Quadratic Functions
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Discussion Points What patterns did you notice in the models you constructed? How did the patterns in the models relate to the patterns in the table and function rules? How do the rules, graphs, & rates of change compare for perimeter and area?
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Discussion Points
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Reflections What are some of the implications of the new STAAR assessment program? How can we dig deeper when teaching algebra so that our students have a better understanding? What are some strategies we can use to help students conceptually understand algebraic structures?
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Next Meeting Bring a sample of student work related to the concepts we discussed today. Be prepared to share at least 1 thing you have implemented in your teaching from this training.
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