This problem introduces the method used by scientists to date certain organic material. It is based not on the amount of the Carbon 14 isotope remaining in the sample but rather on the ratio of Carbon 14 to Carbon 12. This ratio decreases, hypothetically, at a constant exponential rate as soon as the organic material has ceased to absorb Carbon 14, that is, as soon as it dies. This problem is intended for instructional purposes only. It provides an interesting and important example of mathematical modeling with an exponential function.

This exploratory task requires the student to use this property of exponential functions in order to estimate how much Carbon 14 remains in a preserved plant after different amounts of time.

This exploratory task requires the student to use a property of exponential functions in order to estimate how much Carbon 14 remains in a preserved plant after different amounts of time.

The task requires the student to use logarithms to solve an exponential equation in the realistic context of carbon dating, important in archaeology and geology, among other places.

In the task ''Carbon 14 Dating'' the amount of Carbon 14 in a preserved plant is studied as time passes after the plant has died. In practice, however, scientists wish to determine when the plant died and, as this task shows, this is not possible with a simple measurement of the amount of Carbon 14 remaining in the preserved plant.

This problem introduces the method used by scientists to date certain organic material. It is based not on the amount of the Carbon 14 isotope remaining in the sample but rather on the ratio of Carbon 14 to Carbon 12. This ratio decreases, hypothetically, at a constant exponential rate as soon as the organic material has ceased to absorb Carbon 14, that is, as soon as it dies.

Students will look at the balance of carbon among the systems and construct an explanation of how the movement of carbon can result in changes to the system.

In this video segment adapted from NOVA, find out how cars made of a material stronger than steel and half the weight can help combat climate change.

In this lesson plan, educators will teach their students what cardiorespiratory health and endurance is, exercises that increase cardiovascular health, and have students measure their own cardiorespiratory health using the fitnessgram pacer test.

This task lets students explore the concept of independence of events. There are two alternative ways of solving the problem.

Success in one’s career depends on much more than just earning good grades in school. Help increase learners’ workforce readiness by building strengths in key interpersonal skills, such as problem solving, leadership, communication, teamwork and collaboration, and critical thinking, using this collection of resources produced by WGBH. The resources can be used to engage learners with media and prompt rich discussion in the classroom and other educational settings.

The collection is currently in development. Browse the initial set of resources—focused on nonverbal communication—and return for new content to be added over time.

Students will assess their career aspirations, evaluate and compare career opportunities based on aptitudes and interests, and plan a career while understanding the income potential of that chosen career.

In this mini-unit, students begin by creating a career plan and an education plan. After learning financial aid vocabulary concepts, students will play an online game called “Payback” to apply knowledge learned about paying for college. The activity concludes with students creating a personal resume and taking notes on job interview tips.

This is a lesson plan regarding middle school research. Students first complete their career research (different lesson plan). Next they complete this lesson which is completing a biography on an important person in their chosen career.  Picture taken by Jann Leishman  

What do you want to be when you grow up? Take a look at multiple career interviews to help narrow the field!

This is a lesson plan designed for sixth grade students to create a podcast outlining highlighting a career in the audio/visual career cluster. By completing this project students are participating in a project that builds many skills in the audio/visual career cluster. The project is done using iPads with the Garage Band App. 

Apprenticeships are a win-win situation for both employers and the apprentices. Employers get a talent pipeline of skilled employees, and apprentices earn money while they learn the skills of the trade.

You can find apprenticeships in a broad range of industries: manufacturing, information technology, healthcare, construction, and more. Employers, employer and labor groups, and trade associations sponsor apprenticeships. They often partner with local colleges to deliver the classroom instruction.

In this media-rich lesson, students explore careers in science through profiles of Alaska Native scientists. They consider how traditional ways of knowing and Western approaches to science can complement each other and allow students to incorporate their own interests when considering careers in science.

Children will learn how to practice and maintain personal hygiene habits such as washing hands, brushing their teeth, and proper body hygiene.