Paul F. Brandwein Books

Invitations to investigate
Invitations to investigate

By Paul F. Brandwein

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Over forty experiments, performed with easily obtainable materials, help the student learn the scientific approach to experimentation and exploration.

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Concepts in Science
Concepts in Science

By Paul F. Brandwein

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Grade 1.

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Concepts in Science Purple
Concepts in Science Purple

By

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Concepts in science
Concepts in science

By Paul F. Brandwein

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What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.

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