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.

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.

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.

10ths and Decimals

In this video segment from Cyberchase, the CyberSquad replaces a piece of track to get the Madre Bonita Express to the Mother's Day harvest.

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Firefighter Training

In this video segment from Cyberchase, Harry decides to train as a firefighter and uses line graphs to chart his physical fitness progress.  

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From Patterns of Input and Output to Algebraic Equations

Students explore the relationship between input and output values and learn to use algebraic expressions and equations.

Addition of Decimal Numbers and a Common Error

Students practice carefully lining up decimal places while calculating sums of decimals that total more than one.

Aiming For the Basketball Hall of Fame

In this video segment from TV 411, two Atlanta Hawks players plan a driving route to reach the Basketball Hall of Fame. They use map scales to estimate their travel distances.

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Amazing Chase

This video from WOUB Athens, presented as a parody of a popular TV network reality show, will help high school students review and prepare for the Ohio Graduation Test in Mathematics.

The Angle on Pool

Find out how angles and symmetry come into play in the game of pool in this video adapted from Annenberg Learner’s Learning Math: Measurement.

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Arrangement 1

The CyberSquad tries to figure out a table arrangement for 20 workers in this video from Cyberchase.

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Arrangement 2

In this video segment from Cyberchase, Matt tries for a second time to arrange tables and chairs to accomodate 20 workers.

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Arrangement 3

Matt’s third table arrangement helps fit all 20 workers at five tables in this video segment from Cyberchase.

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Attention to Scaling

In this video segment from Cyberchase, the CyberSquad adds a scale to their bar graph to give a more accurate picture of the bug infestation at the Cybrary.

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Average Practice Time

In this video segment from TV411, figure skaters compute their average daily practice time.

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Balancing Equations with Multiple Terms

In this video segment from Cyberchase, Digit and Inez must balance two number sentences to save the bunnies of Cyberspace.

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Balancing Number Sentences to Introduce Missing Values

Students learn about balancing equations and keeping an equation balanced by adding/subtracting the same amount to both sides of the equation. Students solve missing value problems and justify their solutions.

Basketball as a Context for Percentages

Students learn to associate simple fractions (25%, 50%, 75% as well as 20% and multiples) of wholes with equivalent percentages in the context of basketball scores and stadium capacity.

Bianca Gets a Present

In this video segment from Cyberchase, Bianca is babysitting two young girls on Halloween. When their mother is late, she has to take them trick-or-treating even though it is her birthday. To thank her, the girls combine their Halloween candy and then share it equally amongst themselves and Bianca.

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Bianca Gets in Gear

Bianca visits a bike shop and learns how bicycle gears work in this Cyberchase video segment.

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