CAS Activities for Grade 9 and 10 Dwight Stead Dufferin-Peel CDSB OAME Conference Friday, May 15,...
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Transcript of CAS Activities for Grade 9 and 10 Dwight Stead Dufferin-Peel CDSB OAME Conference Friday, May 15,...
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: CAS Implementation Strategy for Dufferin-Peel
CDSB
Minds On…
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.
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
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
Where’s CAS in Grades 9 & 10
Grade 9 Applied (MFM1P)
NA: 3 expectations
Grade 9 Academic (MPM1D)
NA: 3 expectations
Grade 10 Applied (MFM2P)
QR: 3 expectations
MLR: 1 expectation
Grade 10 Academic (MPM2D)
QR: 2 expectations
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
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
Action …
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
Nspire CAS Handheld Keys
The blue Ctrl button is used to control features
The NavButton is used to grasp objects
Shortcuts: Ctrl » advance a page Ctrl « returns to
previous page
The NavPad is used to move the cursor
Consolidation/ Debrief …
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
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
For more information, please contact me:
Dwight Stead – Mathematical Literacy Consultant (7-12)
• Phone: 905-890-0708 x24533
• E-Mail: [email protected]