• Graphing calculators are required for ALL CTHS Math courses.

    CTHS Mathematics Calculator Policy

    A graphing calculator is required for all upper-level math courses. For all Algebra 1 and Geometry courses, a graphing calculator is HIGHLY ENCOURAGED, but a scientific calculator will suffice for these two courses. Calculators on cell phones do not have the capabilities we need, so they are not adequate for classwork. Our courses have exams that require the use of a calculator and exams where the use of a calculator is prohibited. Students need to know how to do math without calculators. It is equally important that they learn how to use the current technology as a tool for when the numbers and problems get really "ugly". It is a student's responsibility to obtain and bring the appropriate calculator each day. As a math department, we do not have any "classroom" graphing calculators to lend students, even on test days. Be sure to obtain the correct graphing calculator and bring it every day!

    Calculator Requirements:

    The following courses require a graphing calculator:

    Geometry/Precalculus Honors, Algebra 2, Honors Algebra 2, Algebra 2/Precalculus Honors, Introductory/Intermediate College Algebra, College Algebra, College Trigonometry, College Statistics, AP Statistics, AP Calculus AB, AP Calculus BC, IB Math Studies 1/2, IB Math SL 1/2, IB Math HL 1/2.

    Graphing Calculators:

    TI-83, TI-83+, TI-84, TI-84+, TI-84+ C or the TI-Nspire (non-CAS). The "Silver Editions" of the calculators are more expensive because they hold more memory and come with more tools. "Silver Editions" are great but not necessary. These calculators cost between $99 and $120 new. They can be purchased used on eBay/Craigslist for as little as $35.

    Additional Notes about Graphing Calculators:

    The math department will have about 200 of the TI-84 graphing calculators to rent out to students in Algebra 1, Geometry, or Algebra 2, students in higher-level courses are expected to have their own graphing calculator. The cost for rental is $25 per calculator for the academic school year. This is a limited supply available on a first-come, first-serve basis. Lease agreements can be downloaded from the math department website. Parents must sign the lease. There are provisions in the lease for students in financial need. See the lease agreement for details.