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Creating Classroom Rules
In this lesson students will learn that different groups of people may have different rules by developing classroom rules.
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Group Rules and Expectations
This lesson helps students better recognize and understand how groups influence the behavior of their members through rules and expectations.
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My School as a System
In this lesson, students will explore systems; they will think about their schools as systems, focusing on a social rather than scientific understanding of the concept.
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Science in the Classroom
Science in the Classroom is a collection of annotated research papers and accompanying teaching materials designed to help students understand the structure and workings of professional scientific research.
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Science NetLinks

Median Birth Years

Photo Credit: Science NetLinks

Introduction

Work with your team to determine the median birth year of one of the three generations being used. Recall that the median is the middle value in a distribution, above and below which lie an equal number of values.

Team 1	Team 2	Team 3
Present Generation	Parents’ Generation	Grandparents’ Generation
Birth year:	Birth year:	Birth year:



















Median year:	Median year:	Median year:

Median Birth Years

Introduction

Present
Generation

Parents’
Generation

Grandparents’
Generation

Median Birth Years

Introduction

Present Generation

Parents’ Generation

Grandparents’ Generation

Present
Generation

Parents’
Generation

Grandparents’
Generation