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# Using Scale City To Teach Proportional Reasoning

Special Collection

Launched by Kentucky Educational Television in 2009, Scale City: The Road to Proportional Reasoning is an online mathematics resource for middle-grades students featuring fun and engaging videos and interactive simulations to teach the mathematics of scale and scaling. It’s available at www.scalecity.org.

Using Scale City To Teach Proportional Reasoning, an interactive, media-rich, professional development resource, includes three self-paced teaching modules on the effective classroom use of Scale City.

Teaching modules 1 and 3 feature videos of an experienced teacher working one-on-one with four middle school students as they verbalize their mathematical understandings and work through problems that require them to use proportional reasoning as well as prerequisite skills in multiplication, division, fractions, decimals and percents, and measurement. The second teaching module is a tour of the Scale City website.

RESOURCE GRADE LEVEL MEDIA TYPE

## Module 1: Preparing To Teach Proportional Reasoning

This teaching module introduces proportional reasoning in the classroom and its place in the Common Core Mathematics Standards, the related teacher resources available at the Scale City website, and what students should know and be able to do to understand proportional reasoning. Module 1 of Using Scale City to Teach Proportional Reasoning.

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Self-paced Lesson

## Module 2: Using Scale City To Teach Proportional Reasoning

This teaching module introduces you to the resources found in Scale City: The Road to Proportional Reasoning, including the mathematics explored in each module, descriptions of the videos, and tutorials for the Flash activities. Module 2 of Using Scale City to Teach Proportional Reasoning.

6-8

Self-paced Lesson

## Module 3: Introduction to Scale City Learning Modules

This module includes videos of middle grades students tackling some of the problems in four of the Scale City modules. You will explore ways you might assess, support, and challenge your students as they learn about scale, scaling, and proportional reasoning. Module 3 of Using Scale City to Teach Proportional Reasoning.

6-8

Self-paced Lesson

## Scale City: FAQs and Media List

This PDF answers questions teachers may have about Using Scale City To Teach Proportional Reasoning, including contact information. It also includes a Media List with the times of all the videos in the teaching modules that may be used to help plan a group professional development event around Using Scale City.

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