Language Study & Global Learning

Duolingo

Difficulty: Easy

Platform: Web, iOS, Android

Price: Free

FluentU

Difficulty: Moderate

Platform: Web, Android app is in the works.

Price: Start with a free trial; see pricing

Global Oneness Project

Difficulty: N/A

Platform: Web

Price: Most materials are free; some films and toolkits are also available for purchase.

The Global Read Aloud

Difficulty: Easy

Platform: Web

Price: Free

italki

Difficulty: Moderate

Platform: Web, Android, IOS

Price: Free for limited use. Purchase italki credits to get a year's worth of premium membership.

PenPal Schools

Difficulty: Easy

Platform: Web

Price: Free for up to five classrooms per school; school and district pricing available.

Skype in the Classroom

Difficulty: Easy

Platform: Skype is available on the Web and many other devices and platforms.

Price: Free