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Blog for math teachers. The Sadlier Math Blog is a K-8 resource to support deep comprehension of math skills and concepts.
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Close Reading Lesson: Faithful Elephants by Yukio Tsuchiya

Close reading is when a reader analyzes the details of a text to make interpretations and develop a deep understanding of the passage. Often the reader uses a short text and rereads the passage several times focusing on a different literary element with each read... Continue Reading

May 8, 2017

How the Number Line Should Be Used at Each Grade Level to Support Coherence in Mathematics

Using number lines is one of those topics that are often taken for granted in the elementary and middle school curriculum. With the advent of the Common Core State Standards for Mathematics, their use is spelled out explicitly, beginning in Grade 2.

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April 20, 2017

3 Algebraic Thinking Activities in the Early Grades

Algebra in Grade 1! If you are wondering how to implement algebraic thinking in the early grades, then this post and its downloads will give you some ideas. These activities will help you with the primary goal of initiating algebraic thinking—the relationship between addition and subtraction—in the early grades.

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February 15, 2017

How to Use Teddy Bear Counters in the Elementary Math Classroom

Teddy bear counters have become near and dear to many early elementary math educators. Having come from mostly a middle- and high-school teaching background, I first encountered the use of teddy bear counters in an early childhood development class. At first I thought it was simplistic, but the more I have learned about elementary mathematics, the more I see their benefit to math teachers and students alike.

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October 5, 2016

Connecting Ten Frame Activities to Number Bonds and Number Sentences, K–2

When I visit classrooms, I often see students engaged in wonderful fun activities, but I can’t help noticing that these activities don’t always connect to the math ideas that the teacher is hoping to explain. I have worked hard in my own teaching to help students make the connection between fun and understanding, and I hope this post gives you some insight into how I do this.

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August 24, 2016

Subitizing PowerPoint Activity, Grades 1–4

The downloadable subitizing PowerPoint slides below are based on a great activity I have used in my class over the years, at every level.

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April 18, 2016

3 Number Bond Activities; Composing and Decomposing Numbers in Grades K–2

In current research and practice for early mathematics education, composing and decomposing numbers is taking on an increasingly import role in developing students’ number sense. The use of number bonds is instrumental in helping students gain a deeper understanding of numbers and to visualize the relationship between numbers. Number bond activities were popularized in Singapore. However, they are appearing more frequently in the American math curriculum. In this post I will give you three decomposing number activities that include the use of number bonds. Two of the activities show how to extend activities in the Progress in Mathematics series to include number bonds.

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Math tips from our Math expert Jeff! 

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Interactive Read Aloud Bundle, K–5

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Close Reading Faithful Elephants, Grades 4–5

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Comparing & Contrasting Texts: Ruby Bridges, Grades 4–5

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