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## Encouraging Students to LOVE MATH with One-Straight-Cut Letters

One-straight-cut activities engage middle-school students in learning about symmetry and geometric transformations.

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## Varying the Intensity of Scaffolding for English Learners

Vary the intensity of pedagogical scaffolding along three dimensions—grouping, structure, and language—with the same rigorous prompt.

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## The Beauty of Regular Hexagons

The author shares geometry that inspires him.

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## Broken Ceiling Lights: Circular Area Without the Radius

A customer walks in to a lighting store with a broken ceiling light, and the solution to finding a replacement glass illuminates an alternative approach to finding the circumference and area of a circle without knowing the circle’s center, radius, or diameter.

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## Construct It! Triangle Puzzle Challenges

This article presents an original puzzle that supports students’ development of visual thinking and geometry ideas based on the Van Hiele levels of geometric thought.

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When given the opportunity to play with mathematical materials and ideas, children demonstrate their mathematical understanding in innovative ways.

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## GPS: Teaching Shapes Inclusively

Growing Problem Solvers provides four original, related, classroom-ready mathematical tasks, one for each grade band. Together, these tasks illustrate the trajectory of learners’ growth as problem solvers across their years of school mathematics.

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## Composing Tangram Puzzles to Support Shape Transformation

Different types of tangram puzzles can encourage students to make sense of problems and engage in the computational thinking practice of debugging.

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## Math-Inspired Artwork

Students and teachers enjoy exploring the boundaries between mathematics and art.

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## GPS: Triangle Explorations and Constructions Using Robots

Growing Problem Solvers provides four original, related, classroom-ready mathematical tasks, one for each grade band. Together, these tasks illustrate the trajectory of learners’ growth as problem solvers across their years of school mathematics.