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. Students should be guided to recognize the use of the natural logarithm when the exponential function has the given base of e, as in this problem. Note that the purpose of this task is algebraic in nature -- closely related tasks exist which approach similar problems from numerical or graphical stances.

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. The equation for the amount of Carbon 14 remaining in the preserved plant is in many ways simpler here, using 12 as a base.

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 a property of exponential functions in order to estimate how much Carbon 14 remains in a preserved plant after different amounts of time.

This online lab exercise focuses on the processes involved in the Carbon cycle and the influences of human activity on those processes- especially as they relate to Earth's weather and climate. The fourth in a 10-part lab series on weather and climate, this lab exercise is designed for first and second year college geoscience students (majors and non-majors) as well as pre-service STEM teachers.

Students are introduced to the concept of energy cycles by learning about the carbon cycle. They will learn how carbon atoms travel through the geological (ancient) carbon cycle and the biological/physical carbon cycle. Students will consider how human activities have disturbed the carbon cycle by emitting carbon dioxide into the atmosphere. They will discuss how engineers and scientists are working to reduce carbon dioxide emissions. Lastly, students will consider how they can help the world through simple energy conservation measures.

Science Background:
• Sulfuric acid removes water from the sugar (Dehydration).
• Reaction is very exothermic (releases heat)
• With water removes you are left with elemental carbon
• Much of the water is boiled off as steam

Materials: Sulfuric acid, sugar, beaker, glass stir rod, dish to collect overflow

Directions:
1. Fill beaker 2/3 full of sugar. 100-250 mL is a good size
2. Add concentrated Sulfuric Acid so it just covers sugar
3. Mix with glass stir rid (you may need to add some more acid)
4. When beaker heats up (sugar turns brown) stop stirring.
5. Reaction may take a few minutes. Be patient.

Card and board game kits for many of the Comox Valley Schools (SD71, B.C.) middle-grade Core French units (also searchable on the Resource Bank). All would be adaptable for younger and older students. There are also flash card sets with the units themselves.
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Ces jeux sont destinés aux élèves de Core French, mais seraient également très utiles pour susciter la participation à l'oral dans les cours d'Immersion! Des cartes flash sont aussi disponibles avec chaque unité (recherchables dans la Banque de Ressource).

UNIT THEMES (those with flash cards and games, searchable on the Resource Bank):

-Greetings & letters (saluer & alphabet)
-Numbers & calendar (chiffres & calendrier)
-Who are you? (Qui es-tu?)
-Body parts & monsters (le corps & les monstres)
-Clothing (les vêtements)
-Sports (les sports)
-Hobbies (les passe-temps)
-Animals (les animaux)
-High-frequency words (Les mots de haute fréquence)
-Food (la nourriture) - unit 2/2e unité

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

This is an opportunity for students and schools to win prizes while becoming more informed about career and post-secondary options after high school!

Fill out the form to access everything you need to know about the competition including a 'Get Started Guide' and additional prizing information!

Students will become aware of how career planning is influenced by their present situation, which includes their self-concept, friends, family, community and available resources. Students will recognize that career planning is affected by what they know about the future concerning themselves, friends, family, community and available resources. Students will acknowledge that career planning reflects personal goals and lifestyle goals. Students will consider career plans that accommodate change and growth in their personal life and their family life, as well as in the world of work. Students will develop the lifelong skill of making career planning decisions that reflect personal goals, lifestyle goals and career goals. Students will develop and apply successful job search skills. Students will become familiar with employee interview skills which they can apply, now and in the future, to getting a job and perhaps to changing jobs. Students will consider those skills and attitudes needed to retain a job. Students will develop the lifelong skills of making decisions about job search, changing jobs, retaining jobs and job loss.

Discover the career that is right for you and then learn how to research, plan and pursue it.

Order this free resource!

"A gamified learning experience where students explore their personal interests and learn about careers in agriculture. This game will demonstrate the diversity, variety, and importance of careers in agriculture. Through participation, students will begin to envision themselves and their diverse interests fitting into agriculture. Be sure to download the PPT."

Also explore Digital Agriculture careers that combine technology & agriculture

Investigate career opportunities in the financial industry in Saskatchewan and Canada.

Teacher Guide included.

3-5 hours

This site developed by the Canadian Pediatric Society explores COVID-19 and your child. It includes frequently asked questions and regularly updated information for parents from Canada's pediatricians.
Topics include:
-What are the symptoms?
-I keep hearing of an inflammatory illness possibly linked to COVID-19 in kids. Should I be concerned?
-How can I protect myself and my child?
-What should I do if I think my child is sick?
-My child is due for vaccines. Is it safe to be immunized during the pandemic?
-Will a visit to my health care provider increase our risk of being exposed to COVID-19?
-I just had a baby. Can people come visit?
-When will there be a COVID-19 vaccine for children?
-How can I talk to my child about COVID-19?
-Resources you can trust

Lead the new generation of curious explorers!

Create a well-rounded education with free lessons, activities, games and more! From social studies to world languages to SEL, Carmen Sandiego inspires curiosity in every subject.

Lead students through over 100 classroom activities inspired by the new Netflix series.

Travel the world with Carmen and our partners at Google Earth and Google Expeditions.

Resources, lessons, games and activities!

Select Resources and then you can filter by grade K-12 or activity type!

In this task, students can see that if the price level increases and peopleŐs incomes do not increase, they arenŐt able to purchase as many goods and services; in other words, their purchasing power decreases.

This art history video discussion examines Jean-Baptiste Carpeaux's "Dance," 1865-69, marble, 420 x 298 cm (Musee d'Orsay, Paris). Commissioned by Charles Garnier for the facade of L'Opera. In 1964 it was replaced by a copy executed by Paul Belmondo.