Central High School

Department of Mathematics

Department Office:

Room 128

School Based Teacher Leader:

Mr. John Zak (email: jzak@philasd.org)

Incoming 9th Grade Student Placement

Follow the link below for a spreadsheet showing the list of student placements. The list only shows students placed into an honors course. All other incoming 9th grade students are placed into Algebra 1. Please contact Mr. Zak at jzak@philasd.org with questions or concerns.

Incoming 9th Grade Math Placement

Note: Many students did not write their names legibly and we made our best effort to correctly interpret the handwriting.

Summer Assignment Information

During the first week of classes students will be tested on their enduring understanding of math skills and concepts from previous courses. In order to maintain skills over the summer, students enrolled in Algebra 1, Algebra 2, Geometry, or Pre-Calculus can use the following downloadable packets as well as several free online resources.

Downloadable Packets

  • Incoming 9th Grade Students taking Algebra 1 / Algebra 1 Honors
    • Basic Pre-Algebra Practice Download
    • Linear Equations Practice Download (Honors)
    • Note: Answers are included at the end of each document


  • Review of Algebra 1 for students taking Geometry or Algebra 2 -- Recommended Schedule
    • Week 1: Linear Equations 1.1 to 1.4
    • Week 2: Linear Equations 1.5 to 1.10
    • Week 3: Graphing Lines 2.1 to 2.3
    • Week 4: Graphing Lines 2.4 to 2.5
    • Week 5: Inequalities 3.1 to 3.3
    • Week 6: Systems 4.1 to 4.3
    • Week 7: Polynomials 5.1 to 5.3
    • Week 8: Polynomials 5.4 to 5.7
    • Week 9: Factoring 6.1 to 6.3
    • Week 10: Factoring 6.4 to 6.6
    • Note: Answers are included at the end of each document


  • Review of Algebra 2 for students taking PreCalculus -- Recommended Schedule
    • Week 1: Inequalities 3.1 to 3.3
    • Week 2: Polynomials 5.1, 5.4 to 5.7
    • Week 3: Factoring 6.1 to 6.3
    • Week 4: Factoring 6.4 to 6.6
    • Week 5: Systems 4.2 to 4.4
    • Week 6: Rational Expressions 7.1 to 7.4
    • Week 7: Rational Expressions 7.5 to 7.7
    • Week 8: Radicals 8.1 to 8.5
    • Week 9: Radicals 8.6 to 8.8
    • Week 10: Quadratics 9.1 to 9.6
    • Note: Answers are included at the end of each document


  • Review of Precalculus for students taking Calculus


Online Practice

For basic skills practice and instruction, the department recommends Khan Academy.

For more advanced practice we recommend Alcumus from the Art of Problem Solving.

The online problem bank is free of charge and challenges students to think critically in applying their math understanding. Student will need to register (for free) on the site for use.

Course Selection Information:

Application for Honors and AP Courses (2019-2020):

Any students interest in taking an Honors or AP Math course for the 2019-2020 academic year must apply via the link below. This includes students currently placed in honors courses.

https://tinyurl.com/CHS-MathHonors

Information about "Doubling-Up" in Mathematics

Download the following document for an explanation for what "doubling-up" means and reasons why a student should or should not "double up."

Department Info, News, and Notes:

Math Testing Days:

Tuesday, Thursday

Math Office Hours: (Tutoring)

Wednesday during Advisory

Other Tutoring Opportunities:

  • Peer Tutoring: Available during advisory every morning, Room 40. No need to sign up; just drop in. See Mr. Crawford for information.
  • Mr. Warshaw: Availability Tuesdays and Thursday, 12:15 to 3:15, Room 40.

Math Club:

Meets Thursdays, Room TBA