The College of New Jersey

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Math Teacher Professional Development

All Workshops Led by Dr. Cathy S. Liebars  Associate Chair of the Mathematics and Statistics Department and the Mathematics Education Coordinator at TCNJ. She teaches courses for pre-service teachers at all levels in the content area of mathematics. Dr. Liebars has presented workshops in several school districts in New Jersey on a variety of topics. She has worked with middle grades and elementary teachers, assisting in their implementation of reform-based mathematics programs like the Connected Math Program (CMP) and TERC Investigations in Number, Data, and Space. She is currently co-director of the Woodrow Wilson Teaching Fellowship induction grant at TCNJ. Dr. Liebars is a Past-President of the New Jersey Association of Mathematics Teacher Educators (NJAMTE), currently serves on their Executive Board, and is former chair of the New Jersey section of the Mathematical Association of America.

Student – Centered Learning in Mathematics – May 19, 2021 2pm – 4:00pm

Description: What does student-centered learning in mathematics look like?  This workshop will seek to answer this question with examples at the high school level.  Problem-based lessons at these grade levels will be discussed and resources will be provided. Grade levels: high school mathematics

Learning outcomes:

  • Participants will be able to use student-centered methods in their mathematics classroom.
  • Participants will be able to write a problem-based lesson plan in mathematics.
  • Participants will be able to find resources for creating problem-based lessons.
  • Participants will be able to adapt lessons to make them more student-centered.

Length: 2 hours

New Jersey Learning Standards calls for teachers to use instructional methods so that students use the Standards for Mathematical Practice in whatever content they are learning.  Student-centered learning methods allow for and in fact require these practices (problem solving, reasoning, explaining, modeling, etc.).

Fee:$100.00 per person
PDSN Members: $50.00
Certificate of Completion & Workshop Materials Provided

Register Here:

Using algebra tiles and other manipulatives to teach algebraic concepts  – June 3, 2021 2pm – 4:00pm

Overview of Session Content:

Participants will learn how to use algebra tiles to model concepts such as integer operations, arithmetic on polynomials, factoring of polynomials, and solving equations, with connections to other topics. We will discuss reasons for using manipulatives or other concrete materials to teach fundamental algebraic concepts. There will be discussion and hands-on participation throughout the workshop.

Grade levels: middle school or high school
Length: 2 hours

Learning objectives for participants:

  • Participants will learn how to use algebra tiles to help students understand fundamental algebraic concepts such as factoring.
  • Participants will be aware of technological resources and various manipulatives that are available to teach algebra.

Fee:$100.00 per person
PDSN Members: $50.00
Certificate of Completion Provided
Tiles are not required to attend workshop

Register Here:



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Please George Hefelle for any questions.


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