<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type='text/xml' href='//costellomath.com/?wds_sitemap_styling=1&#038;template=sitemapBody'?><!-- SMARTCRAWL SITEMAP -->
<urlset
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd http://www.google.com/schemas/sitemap-image/1.1 https://www.google.com/schemas/sitemap-image/1.1/sitemap-image.xsd"
	xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
	>
			<url>
<loc>https://costellomath.com/</loc>
<lastmod>2026-10-06T00:16:45+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/number-lines/</loc>
<lastmod>2026-05-28T10:14:46+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/mathematical-instruction-and-learning/</loc>
<lastmod>2026-05-28T10:14:47+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/number-lines-2/</loc>
<lastmod>2026-05-28T10:14:48+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/number-of-the-day-tasks/</loc>
<lastmod>2026-05-28T10:14:49+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/number-lines-and-numberless-activities/</loc>
<lastmod>2026-05-28T10:14:50+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/classroom-number-line/</loc>
<lastmod>2026-05-28T10:14:51+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/moving-beyond-short-term-performance/</loc>
<lastmod>2026-05-28T10:14:52+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/hitting-the-wall-instructional-strategies-to-make-it-through-june/</loc>
<lastmod>2026-05-28T10:14:53+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/what-students-think-the-point-of-math-is/</loc>
<lastmod>2026-05-28T10:14:53+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/numbers/</loc>
<lastmod>2026-05-28T10:14:54+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/retrieval-practice-what-you-need-to-know-for-a-successful-september-start-up/</loc>
<lastmod>2026-05-28T10:14:55+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/numbers-vocabulary/</loc>
<lastmod>2026-05-28T10:14:56+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/break-apart-numbers-compare-numbers-and-operations/</loc>
<lastmod>2026-05-28T10:14:57+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/interactive-math-number-google-slides/</loc>
<lastmod>2026-05-28T10:14:58+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/compare-numbers-and-operations/</loc>
<lastmod>2026-05-28T10:14:59+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/number-sense-and-number-lines/</loc>
<lastmod>2026-05-28T10:14:59+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/interactive-slides-math-number-measurement/</loc>
<lastmod>2026-05-28T10:15:00+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/patterns-and-relations/</loc>
<lastmod>2026-05-28T10:15:01+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/patterns/</loc>
<lastmod>2026-05-28T10:15:03+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/algebratic-reasoning/</loc>
<lastmod>2026-05-28T10:15:04+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/measurement/</loc>
<lastmod>2026-05-28T10:15:07+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/measurement-2/</loc>
<lastmod>2026-05-28T10:15:08+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/measurement-3/</loc>
<lastmod>2026-05-28T10:15:09+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/graphs/</loc>
<lastmod>2026-05-28T10:15:10+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/analyzing-graphs/</loc>
<lastmod>2026-05-28T10:15:11+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/number-sense/</loc>
<lastmod>2026-05-28T10:15:12+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/operations/</loc>
<lastmod>2026-05-28T10:15:13+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/using-exit-tickets-to-spark-recall-applying-a-science-of-learning-perspective-to-instruction/</loc>
<lastmod>2026-05-28T10:15:14+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/demonstrating-equality/</loc>
<lastmod>2026-05-28T10:15:15+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/measurement-may20/</loc>
<lastmod>2026-05-28T10:15:16+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/daily-cumulative-review/</loc>
<lastmod>2026-05-28T10:15:17+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/financial-literacy/</loc>
<lastmod>2026-05-28T10:15:18+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/patterns-relations/</loc>
<lastmod>2026-05-28T10:15:20+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/operations-vocabulary/</loc>
<lastmod>2026-05-28T10:15:21+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/expressions/</loc>
<lastmod>2026-05-28T10:15:22+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/numberless-wordless-graphs/</loc>
<lastmod>2026-05-28T10:15:23+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/open-ended-operations/</loc>
<lastmod>2026-05-28T10:15:24+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/open-ended-measurement/</loc>
<lastmod>2026-05-28T10:15:25+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/open-ended-graphs/</loc>
<lastmod>2026-05-28T10:15:26+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/open-ended-questions/</loc>
<lastmod>2026-05-28T10:15:27+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/operations-vocabulary-open-ended/</loc>
<lastmod>2026-05-28T10:15:30+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/open-ended-patterns-relations/</loc>
<lastmod>2026-05-28T10:15:31+00:00</lastmod>
</url>			<url>
<loc>https://costellomath.com/measurement-open-ended-problem/</loc>
<lastmod>2026-05-28T10:15:33+00:00</lastmod>
</url>	</urlset>