Using a Computer Algebra System (CAS) to Promote Engagement and Access to Algebra for All Students Larry Osthus NCTM 2010.

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Presentation transcript:

Using a Computer Algebra System (CAS) to Promote Engagement and Access to Algebra for All Students Larry Osthus NCTM 2010

Larry Osthus

Southeast Polk High School Spring 2006 High School graduation requirements were changing School Board voted to require all students to take algebra Remedial math classes were removed from the curriculum

As a teacher What thoughts would you have if faced with a similar situation?

Dr. Zalman Usiskin Director University of Chicago School Mathematics Project Presentation: Computer Algebra Systems (CAS) NCSM Conference

Dr. Zalman Usiskin CAS makes algebra comprehensible CAS is at least as valuable to the poorest of algebra students as it is to the best CAS enables students to work with symbolic manipulation that the curriculum has avoided because of its difficulty

Dr. Zalman Usiskin: Four types of students (US): Serious college bound - extender College bound - stabilizer Work-force bound - enabler Low performing student - crutch

Dr. Zalman Usiskin... “Think about what a crutch is!”

Dr. Zalman Usiskin... Crutch – “A tool to help you get along until you are strong enough to get along without it.”

My thoughts: “The teachers should try using a CAS program with their new algebra classes!” “But what CAS program should they use?”

CASIO Technology: ClassPad Manager (Computer Software) ClassPad 330 Plus (Calculator)

School District Response: We are ready to try something different!! Ordered a site license for the ClassPad Manager Ordered three classroom sets of ClassPad 330 calculators Participating teachers enrolled in ClassPad 101

Survey results: August November May

District Results: Everyone was excited! Student attitude was positive Teacher attitude was positive Students were exploring, hypothesizing, justifying, and communicating Teachers changed their approach to teaching using “inquiry”

Student Achievement 75% of the students did better than or the same as they did in their previous math course – general math 88% of the students passed their course – Pre Algebra or Algebra I

Kent Horstman Mathematics Department Chair Southeast Polk High School

Would I go with CASIO again? YES!

Why CASIO ClassPad? Does not have an intimidating interface Intuitive mouse/stylus-based operation – easy to learn and easy to use ClassPad Manager site license is cheap! ClassPad 330’s are affordable – places technology in students’ hands Multitude of applications

A comparison:

Trina Rogers Southeast Polk High School Mathematics Teacher

Students need to learn that doing math may be hard at times, but it is worth the struggle. To get to this point, they first need to know how it feels to be successful.

What factors led to success? Me! The Teachers! Administrative support CASIO Technology Technology in the hands of the students Weekly meetings Staff development and/or graduate credit

So what did we do?

Larry Osthus Thanks!