## Roman Numerals

Math_Team
Updated:
2016
5 Comments
Resource
• Math
• Middle School
80 questions and answers using Roman Numerals divided into 4 sections. Roman soldiers and their exotic fighting machines litter the pages bringing a...

## Introduction to Inequalities

21st Century Lessons: A Boston Teachers Union Initiative
Updated:
2018
3 Comments
Resource
• Math
• Middle School
Common Core
This lesson introduces students to inequalities. We begin by discussing what symbols mean and how to orient the symbols in relation to 2 quantities...

## Ratios and Vocabulary

21st Century Lessons: A Boston Teachers Union Initiative
Updated:
2016
3 Comments
Resource
• Math
• Middle School
Common Core
This lesson will begin with a review of how to write ratios and then focus on how students can write ratios in sentence form. Students will start the...

## Volume of Right, Rectangular Prisms

21st Century Lessons: A Boston Teachers Union Initiative
Updated:
2016
3 Comments
Resource
• Math
• Middle School
Common Core
This lesson was designed to teach volume within the confines of an engaging, relatable scenario. As it is an introduction into the most basic of...

## Area of Trapezoids (Mathematical Proofs)

21st Century Lessons: A Boston Teachers Union Initiative
Updated:
2016
2 Comments
Resource
• Math
• Middle School
Lesson Objective: Students will be able to prove that the formula for the area of a trapezoid is not the same as the formula for the area of a...

## Circumference of a Circle Day 1 (of 2)

21st Century Lessons: A Boston Teachers Union Initiative
Updated:
2016
1 Comment
Resource
• Math
• Middle School
This lesson begins with a challenge video that is designed to motivate students to discover the circumference of a circle. Next students will engage...

## Circumference of a Circle Day 2 (of 2)

21st Century Lessons: A Boston Teachers Union Initiative
Updated:
2016
1 Comment
Resource
• Math
• Middle School
This is the second of two lessons on circumference. The focus of this lesson is on the introduction and application of the formulas for circumference...

## Area of a Circle Day 1 (of 2)

21st Century Lessons: A Boston Teachers Union Initiative
Updated:
2016
2 Comments
Resource
• Math
• Middle School
Common Core
Go to www.21stCenturyLessons.org for unit sequencing; Lesson Objectives: Students will be able to describe the formula for the area of any circle in...

## Area of a Circle Day 2 (of 2)

21st Century Lessons: A Boston Teachers Union Initiative
Updated:
2016
1 Comment
Resource
• Math
• Middle School
Following the area Area of a Circle Day 1 lesson, students will be reminded of and challenged to apply the formula A=πr2. Students will have...

## Surface Area of a Rectangular Prism Day 1 (of 2)

21st Century Lessons: A Boston Teachers Union Initiative
Updated:
2016
1 Comment
Resource
• Math
• Middle School
Common Core
This lesson is bookended with a comical context designed to engage students and provide a reason for the direct instruction. Animation and color...