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CAS Activities for Grade 9 and 10

CAS Activities for Grade 9 and 10. Dwight Stead Dufferin-Peel CDSB OAME Conference Friday, May 15, 2009. Agenda. Minds On: Introduction & Anticipation Guide CAS in the Curriculum “White Box” vs “Black Box” Action: Hands-on CAS Activities Consolidation:

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CAS Activities for Grade 9 and 10

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  1. CAS Activities for Grade 9 and 10 Dwight Stead Dufferin-Peel CDSB OAME Conference Friday, May 15, 2009

  2. Agenda Minds On: • Introduction & Anticipation Guide • CAS in the Curriculum • “White Box” vs “Black Box” Action: • Hands-on CAS Activities Consolidation: • CAS Implementation Strategy for Dufferin-Peel CDSB

  3. Minds On…

  4. What is CAS? • According to wikipedia.com: • A computer algebra system (CAS) is a software program that facilitates symbolic mathematics. The core functionality of a CAS is manipulation of mathematical expressions in symbolic form.

  5. CAS Overview • Computer Algebra Systems (CAS) have been used in Mathematics since the 1970s • Originally used in post secondary to ease the tedium of complex algebra • The revised Grades 9 and 10 Mathematics curriculum in 2005 featured CAS as a tool to help students develop algebraic reasoning

  6. Think/Pair/Share • What concepts in the grade 9 & 10 curriculum mention the use of CAS? • Think • Turn to the person next to you and share • Share with the whole group

  7. Where’s CAS in Grades 9 & 10

  8. Nspire CAS and TIPS4RM • In the summer of 2008 the TIPS4RM resources for MFM2P were completed • Nspire CAS is used extensively in units • 3 Equations of Lines • 4 Systems of Equations • These resources can be downloaded from the OAME web site: • www.oame.on.ca

  9. Black Box vs White Box • CAS was originally used a tool to perform algebra (Black Box) • CAS can also be used as a pedagogical tool to examine patterns, form and confirm conjectures and discuss findings (White Box) • If students only use CAS as a black box, they never develop functional or conceptual skills in algebra • See March 2007 OAME Gazette for more information

  10. Action …

  11. It’s Your Turn… • Turn on the Handheld and press c • Choose 7. My Documents • Scroll down to the folder called Transfers-7-1x-09 and press · • Scroll to the file CAS in 9&10 and press · • If you are asked to Save the Current File choose No and press · • The title screen should appear

  12. Nspire CAS Handheld Keys The NavButton is used to grasp objects The NavPad is used to move the cursor The blue Ctrlbutton is used to control features Shortcuts: • Ctrl » advance a page • Ctrl « returns to previous page

  13. Consolidation/ Debrief …

  14. Implementation of Nspire CAS in Dufferin-Peel CDSB • The initiative took two years to implement • 2007-8: 11 of 23 secondary schools were selected • 2008-9: the remaining 12 secondary schools were selected • Each school received • 30 Nspire CAS handhelds, • 1 Viewscreen • 1 licence of Nspire CAS Teacher Edition software • 1 Connect to Class kit • 1 CBR 2

  15. Implementation of Nspire CAS in Dufferin-Peel CDSB (Continued) • Two teachers per school were selected and each teacher received a personal handheld • Each pair of teachers were to create a CAS activity for grade 9 or 10 • Teachers received three days of training: • One session to introduce the device and CAS • One session on the Nspire software and Computer Link software • One session to share the activities created • Completed activities shared with system on a wiki • http://DPCDSB-Math-Stuff.wikispaces.com • Click on the Nspire CAS Rollout link on the left

  16. For more information, please contact me: • Dwight Stead – Mathematical Literacy Consultant (7-12) • Phone: 905-890-0708 x24533 • E-Mail: dwight.stead@dpcdsb.org

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