Skip to content
  • Facebook
  • X (Twitter)
  • Instagram
  • LinkedIn

Have a Purchase Order from your District?

A question? Visit our FAQ!

  • Shop
  • Browse By
  • Featured Authors
  • Pages
Login
  • Facebook
  • X (Twitter)
  • Instagram
  • LinkedIn
Search
QEP Books
  • ShopShop
  • Browse By Browse By
    • *** Clearance Items ***

    • A.I.

    • Assessment

    • At Risk Students

    • Blended Learning

    • Brain Based Learning

    • Classroom Management

    • Classroom Titles

    • Coaching

    • Comprehension

    • Dictionaries

    • Differentiated Instruction

    • ESL/ELL

    • Early Childhood

    • Leadership

    • Literacy

    • Math

    • Phonics

    • Poetry

    • Reading

    • SEL

    • Science

    • Social Studies

    • Special Needs

    • Teaching Methods

    • Word Work

    • Writing

  • Featured Authors Featured Authors
    • Debbie Diller

    • Fisher & Frey

    • Gretchen Bernabei

    • Jeff Anderson

    • Jim Knight

    • Marcia L. Tate

    • Stephen BriseΓ±o

    • Vardell & Wong

  • Pages Pages
    • About Us

    • District Bid

    • FAQ

    • Request a Quote

Search
Login
Login
Cart 0
Cart

Your cart is currently empty.

Not sure where to start?
Try these collections:

  • New Titles
    Sign In to Continue

    Please sign in or create an account to proceed with your order. This lets us apply any tax exemptions and keep your order history.

    Create an account
    Taxes and shipping calculated at checkout
    Subtotal
    $0.00 USD
    Quote List

    Your quote list is empty

    Add products to request a quote for bulk or custom orders.

    • Browse Products
    Step 1 of 2
    Items
    0

    Quote request sent successfully!

    We'll be in touch soon.

    Step 2 of 2

    Contact Information

    Organization Details

    Shipping Address

    Additional Information

    Tax Exempt Information

    You may need to provide valid tax exemption documentation. You can email it to QEPOrders@qepbooks.com.

    Search
    Home Search Shop 0 Cart Account
    Deborah Schifter

    Author

    Deborah Schifter

    Deborah Schifter brings decades of passionate dedication to mathematics education and teacher professional development to her work with QEP Books. As an experienced educator and researcher, she has spent her career focused on helping teachers understand how students learn mathematics and developing innovative approaches to math instruction. Her work bridges the gap between educational research and classroom practice, making complex pedagogical concepts accessible to educators at all levels.

    Throughout her career, Schifter has been deeply committed to supporting teachers in creating meaningful learning experiences for their students. She has worked extensively with elementary and middle school educators, helping them develop deeper content knowledge and more effective instructional strategies. Her collaborative approach emphasizes the importance of understanding student thinking and using that understanding to inform teaching decisions.

    Schifter's publications reflect her belief that all students can succeed in mathematics when given appropriate support and engaging learning opportunities. Her writing combines theoretical insights with practical classroom applications, providing educators with both the "why" and the "how" of effective math instruction. Through her work with QEP Books, she continues to champion student-centered approaches to learning and the professional growth of educators nationwide.

    Books by Deborah Schifter

    But Why Does It Work?: Mathematical Argument in the Elementary Classroom

    But Why Does It Work?: Mathematical Argument in the Elementary Classroom

    $33.50

    QEP Books

    Shop
    • All Books
    • Books On Sale
    • New Titles
    Customer Care
    • About Us
    • Contact Us
    • FAQ's
    Information
    • District Bid
    • Request A Quote
    • Classroom Books
    Contact Us
    • qepsupport@qepbooks.com
    • 800-323-6787 (toll-free)
    • 972-985-0025 (direct)
    • 972-964-2104 (fax)
    © 2025 QEP Books. All rights reserved.
    • Facebook
    • X (Twitter)
    • Instagram
    • LinkedIn
    • Choosing a selection results in a full page refresh.
    • Opens in a new window.