Video tutorial shows how to solve for time when you are given the change in distance, acceleration, and initial velocity. [8:57]

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

In this video from Cyberchase, the CyberSquad figures out how fast their broom must go so they can reach Motherboard before Wicked.

This short video and interactive assessment activity is designed to give fourth graders an overview of schedules and timelines.

This short video and interactive assessment activity is designed to teach third graders an overview of schedules and timelines.

This short video and interactive assessment activity is designed to teach second graders an overview of schedules and timelines.

A relative adverb is a word that talks about a place, time, or reason for something. Remember the three "w's": where, when, and why. [0:40]

In this video adapted from the Encyclopedia of Physics Demonstrations, students will learn how plotting the changes in an object's position on a graph can provide information about the object's motion. [1:31]

Astronomer Carl Sagan discusses the possibility of time travel in this audio-enhanced interview from the NOVAWeb site.

This short video and interactive assessment activity is designed to teach fifth graders about solving length and distance problems involving time - word problems.

This short video and interactive assessment activity is designed to teach fourth graders about solving length and distance problems involving time - word problems.

This short video and interactive assessment activity is designed to teach third graders about solving multi-step problems involving time.

This short video and interactive assessment activity is designed to teach third graders about solving for elapsed time related to rate.

This short video and interactive assessment activity is designed to teach fourth graders about solving for elapsed time related to rate.

This short video and interactive assessment activity is designed to teach third graders about solving for elapsed time in a sequence of events - word problems.

Listen to each Spanish sentence and type in the time that you hear. Great practice with telling time. At the end of the exercise the student can compare his or her responses with the correct answers.

Practice writing out in Spanish the numeric times indicated in the exercise. Great spelling review of Spanish numbers. Answers may be corrected at the end of the exercise.

Various listening examples of native speakers in different dialects giving the date in various contexts. More difficult passages that those of the "days of the week" link. Provides a transcript as well so you can read along. Great way to bring native speakers into the classroom and increase vocabulary!

Various listening examples of native speakers in different dialects saying the days of the week. Examples get progressively more in depth and contextualized. Provides a transcript as well so you can read along. Great way to bring native speakers into the classroom and increase vocabulary!

Students act as engineers to solve a hypothetical problem that has occurred in the Swiss Alps due to a seismic event. In research groups, students follow the steps of the engineering design process as teams compete to design and create small-size model sleds that can transport materials to people in distress who are living in the affected town. The sleds need to be able to carry various resources that the citizens need for survival as well as meet other design requirements. Students test their designs and make redesigns to improve their prototypes in order to achieve final working designs. Once the designs and final testing are complete, students create final technical reports.

The Earth is 4.6 billion years old- but how can humans relate to a number so colossal, and where do we fit on the geologic timeline? Joshua Sneideman reminds us of our time and place in the universe. [3:45]