Debug Algorithm
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Subtraction Algorithms for all grades
This file contains the notes I took at the NCTM Conference in Chicago. I attended a presentation on Subtraction by Frances Stern. She taught various ways to subtract with regrouping. My most favorite to use in class is the number line and France's way on pages 6-7. The France way is what I refer to in my class as "Give, Give It Back"...It's SO MUCH EASIER TO TEACH AND UNDERSTAND than the Traditional U.S. way. I don't know where this has been all my life. Please give it a try! It takes some pract
2nd - 9th
Arithmetic, Math, Mental Math
Additive Strategies – Sequence of Learning (NSW Curriculum)
This resource is a clear, structured reference guide for teachers outlining the developmental progression of additive strategies from Early Stage 1 to Stage 3, aligned to the NSW Mathematics curriculum. Rather than isolated strategies or lesson ideas, this document maps how additive thinking develops over time, showing the conceptual links between counting, part–whole understanding, equality, mental strategies, written algorithms, and problem solving. It is designed to support professional learn
K - 7th
Arithmetic, Basic Operations, Numbers
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Grille d'observations en mathématiques
Cette grille concerne les éléments sous-jacents au dénombrement et à la quantité, concepts devant être acquis au début du primaire. Leur compréhension influencera l’apprentissage des mathématiques, d’où l’importance de prendre le temps de vérifier ces concepts chez les élèves.
K - 2nd
Arithmetic, Math, Numbers
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