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## Measuring Circles

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March 08th, 2020Each year our middle school celebrates the circle and its mathematical relationships on “Pi Day,” March 14, using the date of 3/14 to honor the 3.14 approximation of pi. A local bakery donates pies and, in every math class, students measure round things and consume their pieces of pie. Amidst the Pi Day activities, students…

## Subitizing: Can You See How Many?

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February 13th, 2020Subitizing! This ability to instantly “see” how many is a critical component in young students developing number sense.

## 3 Ways to Engage Pre-K Students in Counting

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December 12th, 2018The task of counting may seem simple, but as Ann Carlyle and Brenda Mercado point out in Teaching Preschool and Kindergarten Math, (Math Solutions, 2012), there is an important distinction between the rote or automatic counting that young children start with, and the eventual formulation of a deeper cognitive connection to the meaning of the…

## Growing Mathematical Ideas in Kindergarten

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October 30th, 2018Kindergarten is an important beginning. It can be the positive start of a child’s lifelong exploration of mathematical ideas or it can lay the first stones in what can become an impenetrable wall between “real math” and “school math.” In Growing Mathematical Ideas in Kindergarten, Linda and Rebeka present their vision of a kindergarten classroom…

## Math Games in Action: Compare (Shake and Spill)

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October 02nd, 2017First grade is the beginning of exposing students to mathematics. Counting, comparing, and grouping, as well as learning the comparison symbols <, =,>, are key foundations in building a mathematical mindset. Try this game with your students, and give them a chance to practice comparing counters with a partner as they take turns shaking and…

## Breaking Numbers Apart

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September 18th, 2017From a Kindergarten and First-Grade Classroom After asking the students to come join me in a circle on the rug, I wrote the number 10 at the top of a piece of chart paper. Next I distributed interlocking cubes by carefully pouring them out near the students so that each child had access to them.…

## Historical Events Rooted in Math: Opener Activities for Your Class

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May 03rd, 2017It may surprise your students that many events in history present ways to explore mathematical ideas. In Day-to-Day Math: Activities for Grades 3-6, Susan Ohanian offers thought-provoking math class “openers” using interesting historical events. Here are a few events to start your classroom investigations into history through a mathematical lense! January 23, 1951 The C102 jetliner makes history,…

## Race to 200: A Game Focused on Student Computation & Strategy

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April 13th, 2017How do you combine computation skills and a game in the same setting? The game Race to 200 helps students, and their partners, build their understanding of number computation, number sense, and place value. This game can be played during one class period, but we recommend trying all three versions, over three periods, so students can…

## Making Math Homework Count

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March 10th, 2017What constitutes good and meaningful math homework? Through a rich bank of math homework assignments, teachers come to see how homework can reinforce skills, prepare students for future lessons, extend their mathematical knowledge, and inspire their creativity. Take this example: Homework: If 3 is 5% of a number, what is 30% of that number? …

## Halving Squares: A #FractionsFebruary Activity

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February 21st, 2017An important mathematics concept for children to learn is that all halves of the same whole are the same size. If the whole is divided into different sizes, then they are not halves. While halves of the same shape must be the same size, they do not have to be the same shape. For example,…