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Conceptual Development in Area Measurement. Funda Gonulates, Lorraine Males, & Nic Gilbertson Strengthening Tomorrow’s Education in Measurement (STEM) Project Michigan State University. MCTM Conference 2010 Dakota High School. Welcome.
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Conceptual Development in Area Measurement Funda Gonulates, Lorraine Males, & Nic Gilbertson Strengthening Tomorrow’s Education in Measurement (STEM) Project Michigan State University MCTM Conference 2010 Dakota High School
Welcome We’d like to take some time for everyone to introduce themselves • Name • Position • Grade level • District/School STEM 2010 - MCTM Conference
Area Take some time to think about and share your answer to the following: • What is area? • What issues or difficulties do you think students might have with area measurement? STEM 2010 - MCTM Conference
Pentagon Task • Find the area • Draw a second pentagon with the same area STEM 2010 - MCTM Conference
Pentagon Task With a partner, • Share your solutions • What might students have difficulties with in solving this problem? • What would students need to know in order to solve this problem? STEM 2010 - MCTM Conference
Pentagon Task – NAEP results Scoring Rubric: • Incorrect (both parts a & b incorrect) • Partial (either a or b correct) • Correct (both a & b correct) • Omitted • Off Task STEM 2010 - MCTM Conference
Pentagon Task – NAEP results Scoring Rubric: • Incorrect (both parts a & b incorrect)…48% • Partial (either a or b correct)…47% • Correct (both a & b correct)…2% • Omitted…2% • Off Task…(rounded to 0%) STEM 2010 - MCTM Conference
Pentagon Task – NAEP results Grade 8 – 2005 Scoring Rubric: • Incorrect (both parts a & b incorrect)…48% • Partial (either a or b correct)…47% • Correct (both a & b correct)…2% • Omitted…2% • Off Task…(rounded to 0%) STEM 2010 - MCTM Conference
STEM – Who, Where, and When Strengthening Tomorrow’s Education in Measurement Who: • PI: Dr. Jack Smith • Research Assistants: Dan Clark, Kuo-Liang Chang, Leslie Dietiker, Hanna Figueras, Nic Gilbertson, FundaGonulates, Pat Greeley, Jia He, Kosze Lee, Lorraine Males, Aaron Mosier, Matt Pahl, Gulcin Tan Sisman, Shannon Sweeny, Alexandria Theakston When: • 2007 – present Where: • Michigan State University • Work beginning in various districts throughout Michigan including Eastern UP, Grand Rapids, Jackson, Kalamazoo, & Oakland STEM 2010 - MCTM Conference
STEM – What What: Research • analyzing the capacity of three written elementary curricula to support robust learning of spatial measurement (length, area, volume) Professional Development • worked with pre-service teachers during their year-long internship on measurement lesson study • working with facilitators throughout Michigan who are in turn working with teachers in their areas STEM 2010 - MCTM Conference
STEM – Three Curricula The three carefully chosen curricula are: • Scott Foresman-Addison Wesley Mathematics • UCSMP’s Everyday Mathematics • Saxon Math STEM 2010 - MCTM Conference
STEM – Our Analysis In our analysis we are looking at every lesson, problem, and activity of teach curricula for two important aspects: • Knowledge elements - Spatial measurement knowledge (conceptual, procedural, conventional) • Textual elements - The ways in which this knowledge is expressed (statements, demonstrations, worked examples, questions, problems, games) STEM 2010 - MCTM Conference
STEM – Area Core Principles • Area as a measurable quantity • Conservation under partitioning. • Conservation under motion • Identical Units • Unit iteration • Transitivity • Spatial structure of rectangular arrays • Multiplicative composition from lengths STEM 2010 - MCTM Conference
“Holistic perception of area” to understand the structure of a region Visual Judgment Std. vs Non std. Units Partition Cover Visual Estimation of Area Measure and Cover “Grain-size perception of area” the ability to exploit the structure Array of Objects (Numbers, counting) Measure w/ Grid w/out Array Structure Measure w/ Array Structure Arrays of Tesselating Objects Compute LxW Rectangles STEM – Area AnalysisFlow of Area Topics Analysis of area content in all curricula K-4 (Gonulates & Mosier, 2010) STEM 2010 - MCTM Conference
Area Lesson Analysis: SFAW Grade 3, P.468A STEM 2010 - MCTM Conference
Area Lesson Analysis: SFAW Grade 3, P.468 STEM 2010 - MCTM Conference
Thank you! We want to thank the National Science Foundation for funding this work We want to thank you for coming! Please take a few minute to fill out our evaluation. For more information starting this fall you can go to: http://www.msu.edu/~stemproj If you have any questions please e-mail us at: stemproj@msu.edu STEM 2010 - MCTM Conference