Browse Media Learn More

Free Membership - Access to more than just media

Families and school personnel (including those in training) who have at least one student with a disability can sign up for free membership.

Accessible Media

Standards-aligned videos with high-quality captions and audio description.

Teaching Tools

Create lessons and assign videos to managed Student Accounts.

Training Videos

Educator and sign language training videos for school personnel and families.
Learning Center

Find resources for providing equal access in the classroom, making media accessible, and maximizing your use of DCMP's free services.
Visit Learning Center

Accessibility Information

DCMP's Learning Center provides hundreds of articles on topics such as remote learning, transition, blindness, ASL, topic playlists, and topics for parents.

See All

Accessibility Guidelines

DCMP offers the only guidelines developed for captioning and describing educational media, used worldwide.
Captioning Key
Description Key

Help Center

Learn how to apply for membership, find and view accessible media, and use DCMP’s teaching tools.
Help Center
Continuing Education and Professional Development

DCMP offers several online courses, including many that offer RID and ACVREP credit. Courses for students are also available.
See All eLearning Resources

QuickClasses

Asynchronous, online classes for professionals working with students who are deaf, hard of hearing, blind, low vision, or deaf-blind.

See QuickClasses

Workshops

For interpreters, audio describers, parents, and educators working with students who are hard of hearing, low vision, and deaf-blind.
See Workshops

Modules

Modules are self-paced, online trainings designed for professionals, open to eLearners and full members.
See Modules

Students

These self-paced, online learning modules cover the topics of transition, note-taking, and learning about audio description.

See Student Courses
Make your educational content accessible and broadly available.

DCMP can add captions, audio description, and sign language interpretation to your educational videos and E/I programming.
Learn More

Accessibility

Captions are essential for viewers who are deaf and hard of hearing, and audio description makes visual content accessible for the blind and visually impaired.

Distribution

DCMP can ensure that your content is always accessible and always available to children with disabilities through our secure streaming platforms.

Meet our partners

DCMP partners with top creators and distributors of educational content. Take a look
About the Described and Captioned Media Program

The DCMP provides services designed to support and improve the academic achievement of students with disabilities. We partner with top educational and television content creators and distributors to make media accessible and available to these students.
Contact Us
Services

Captioning, audio description, and ASL services

Professional training for school personnel

Distribution of fully accessible streaming media

Projects

Media Center

Television Access

We Describe the World

YouTube Audio Description

Privacy and TOS

Privacy Statement

Terms of Service

Accessibility Policy

Mission and Funding

Read More

Arithmetic: Addition and Subtraction

22 minutes 54 seconds

Short Preview

Apply for Free Membership

Videos are generally available for preview to non-members as short clips. Limited full-length titles are also available. Log In to view the full length title.

Browse Full-length Non-member Titles

The Standard Deviants explain the principles for adding and subtracting numbers. They also introduce the rules for estimating numbers and discuss the steps of problem-solving. Part of the "Arithmetic" series.

Media Details

Runtime: 22 minutes 54 seconds

Topic: Education, Mathematics
Subtopic: General Education, Mathematics
Grade/Interest Level: 5 - 8
Standards:

Release Year: 2009
Producer/Distributor: Cerebellum Corporation
Series: Arithmetic
Report a Problem

Members Only - Apply Now

Woman with light brown, curly hair sits in a tan armchair in a studio with a wood floor and blue 3-dimensional background. She holds her hands up as she talks to the camera. Caption. "Anyway."

Man with light brown hair is in front of an orange 3-dimensional background. Caption. "Let's use a number line to help our friend with addition."

9 by 9 multiplication table is on screen next to a brunette woman wearing a bright orange shirt. Caption. "Then extending that process to other whole numbers."

Orange background with a white division symbol in the top left, a man with light brown hair in the top right, and the text, "divided by," across the bottom. Caption. "'goes into,' 'divided by,' and 'divisible.'"

Curly-haired brunette woman sits in a tan armchair in a studio. The text, "6.752," is across the bottom of the screen. Caption. "In 6.752 seconds."

Orange background with a man with light brown hair in the top left, a graphic of half of a pizza next to the text, "equals 1/2," in the top right, and the text, "1 of 2 pieces," across the bottom. Caption. "Now you are left with 1 of 2 slices."

Smiling man with black hair next to a graphic of a coordinate plane with the words, "Right angle," written over it in purple. Caption. "Okay, back to our discussion about our friend, the line."

Woman with light brown, curly hair sits in a tan armchair in a studio. A drawing of a brown ant is at the bottom of the screen. Caption. "And we can measure the distance."

Man with black hair sits in a yellow chair in a studio with a blue and green 3-dimensional background. The camera angle makes him look like his is coming out of the bottom right corner. Caption. "Let's look at examples."