• ## Metric System Basics

Assess height, weight, and volume using metric measurements. This interactive exercise touches on place value and focuses on the prefixes associated with metric measurement. This resource is part of the Math at the Core: Middle School collection.

• ## Calculating Volume: Tunnel Construction

Investigate some of the mathematical challenges Boston engineers had to deal with during the Central Artery Tunnel Project (the "Big Dig"). This video focuses on the irregular shape of the casting basin and the volume calculations required to make the casting basin work, taking math out of the classroom and into real world problem solving.
• ## Geometry and Classification of 2D Figures: Bianca Busts a Move

In this video from Cyberchase, Bianca breaks her friend’s tabletop when she’s practicing dance moves in his living room. She uses measurement and geometry to get a new piece of wood that will fit the table exactly. The accompanying classroom activity helps students advance their understanding of perimeter and area by creating their own tabletop designs. This resource is part of the Math at the Core: Middle School Collection.

• ## The Lowdown | Living Wages in CA: Ratio and Rate in the Real World

In this KQED infographic, find out how much an adult in different-sized households needs to make to pay for basic monthly living expenses. In the accompanying classroom activity, students solve real-life problems involving rate and ratio that involve calculating whether minimum wage in their state is a living wage. They learn whether minimum-wage pay can cover expenses such as food, housing, transportation, and medical care. They then compare their findings with data shown on bar graphs representing living wage and minimum wage in California. To get the most out of this activity, students should be comfortable with arithmetic with dollars and cents into the ten thousands. This resource is part of the Math at the Core: Middle School Collection.

• ## Representing Volume of Right Rectangular Prisms with Unit Cubes

Use your spatial reasoning skills to calculate the volume when given a 3D figure. This video focuses on a right rectangular prism and shows you how unit blocks can help you visualize, then calculate the volume. This video was submitted through the Innovation Math Challenge, a contest open to professional and nonprofessional producers.
• ## Understanding Concepts of Volume and Measurement: Bianca’s Babysitting Blues

In this video from Cyberchase, Bianca is babysitting infant twins. As she tries to give each twin the same amount of liquid baby formula, she discovers that all the baby bottles are different shapes. Learn how she finds two that hold the same amount. In the accompanying classroom activity, students estimate which of four empty containers has the greatest capacity and then determine which one does by measuring actual volume. This resource is part of the Math at the Core: Middle School Collection.

• ## Standard Measures and Conversions within a System: Solve the Measurement Problem!

In this Cyberchase media gallery, the Cybersquad must try to follow a recipe exactly to create a mixture that will help cure their friend Slider. At first, the squad must find a way to ensure standard measures of the ingredients. When this proves only partially effective, they must determine how to make the mixture five times stronger. In the accompanying classroom activity, students use measurement tools, mathematical knowledge, and cooperation skills to create a complete class conversion chart on the board from a 1/4 teaspoon to 1 cup. They then use equations to prove that their conversions are accurate. This resource is part of the Math at the Core: Middle School Collection.

• ## Standard Measures and Conversions: Liquid Volume, Milliliters and Liters

In this Cyberchase Media Gallery, explore key concepts about liquid volume, including standard units of liquid measure and how to convert between them. In the accompanying classroom activity, students create a complete conversion chart from the smallest measure (a fluid ounce) to our largest measure (a gallon). They use equations to prove that their conversions are accurate and learn to recognize mathematical relationships or patterns between the different measurements. This resource is part of the Math at the Core: Middle School Collection.

• ## Volume of Shapes Composed of Right Rectangular Prisms

Use unit cubes to determine the volume of an irregular 3D figure. This video focuses on breaking a complex figure up into two rectangular prisms and then finding the volume of the parts before adding them together to get the whole figure. This video was submitted through the Innovation Math Challenge, a contest open to professional and nonprofessional producers.
• ## Volume of Right Rectangular Prisms

Learn how unit cubes can be used to model the solution for the volume of a 3D figure This video focuses on calculating the volume of a rectangular prism using the equation, length x width x height. This video was submitted through the Innovation Math Challenge, a contest open to professional and nonprofessional producers.
• ## Looking at Math from Different Angles: Complementary, Supplementary, Vertical, and Adjacent

In this interactive from APT, use basic facts about complementary, supplementary, vertical, and adjacent angles to solve for missing angle measurements. In the accompanying classroom activity, students measure the angles of different straight-line designs that they create, looking for patterns and relationships. Students then work with the interactive. By the end of the lesson, students can identify the four different types of angles and use that knowledge to identify the measurement of an unknown angle. This resource is part of the Math at the Core: Middle School Collection.

• ## Rubik's Cube Volume

Revealing multiple ways to find volume using a Rubik's cube. This video focuses on modeling volume and explaining why two different volume equations will give you the same answer.

This video was submitted through the Innovation Math Challenge, a contest open to professional and nonprofessional producers and is part of the Math at the Core: Middle School collection.

• ## Candy Volume

Estimate the volume you get when you fill 3D shapes with candy. This video focuses on estimating volume using nonstandard units, using the volume equation to get a more reliable estimate and checking your estimate by counting the nonstandard units. This video was submitted through the Innovation Math Challenge, a contest open to professional and nonprofessional producers.
• ## Super Bear: Comparing Mass

Think about the relationships between weight and size of similar objects. This interactive exercise focuses on using critical thinking skills and estimation skills to predict how many mini and regular gummy bears it takes to have the same mass as a super bear and then requires using data to complete calculations to see if your prediction was accurate.

This resource is part of the Math at the Core: Middle School collection.