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QR Challenge: Dendrochronolgoy

Created using the ClassTools QR Treasure Hunt Generator

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Teacher Notes

A. Prior to the lesson:

1. Arrange students into groups. Each group needs at least ONE person who has a mobile device.

2. If their phone camera doesn't automatically detect and decode QR codes, ask students to

3. Print out the QR codes.

4. Cut them out and place them around your class / school.

B. The lesson:

1. Give each group a clipboard and a piece of paper so they can write down the decoded questions and their answers to them.

2. Explain to the students that the codes are hidden around the school. Each team will get ONE point for each question they correctly decode and copy down onto their sheet, and a further TWO points if they can then provide the correct answer and write this down underneath the question.

3. Away they go! The winner is the first team to return with the most correct answers in the time available. This could be within a lesson, or during a lunchbreak, or even over several days!

C. TIPS / OTHER IDEAS

4. A detailed case study in how to set up a successful QR Scavenger Hunt using this tool can be found here.

Questions / Answers (teacher reference)

Question

Answer

1. Describe the job of a is a paleoclimatologist.A scientst that studies what the climate was like in the past.
2. Why would a scientist want to be able to compare weather? Give two examples.2 The info from the past can be used to help scientists figure out what could happen in the future. A scientist might discover ice cores from the Antarctic and Greenland. Pollen from the bottom of lakes. Fossil records of insects. Growth rings of trees.
3. Describe what makes a tree ring. Draw a picture of it in your journal if you can. Primary tissues and secondary tissues make tree rings.3
4. What is the function of the cambium layer, why is it so important to tree ring dating?The cambium is a meristem - a place of growth. Each growing season, new xylem cells are produced. These cells eventually clog and no longer transport sap. They become heartwood. These are the cells that make up the rings you see.4
5. How would you compare trees grown in areas with 4 seasons to trees grown in areas with only two seasons?Tree rings will vary in color depending on the seasons.5
6. How can a scientist find out what climate the tree grew in and what the environment was like? There are three ways!Scientists can examine thickness, shape, and scars.6
7. Trees have many parts, draw and label the parts of a tree in your journal using the diagram provided.Diagram of tree7
8. Click through the presentation until you get to Majestic trees. Identify the oldest known tree. Identify the year for the tree that we saw up at Big Trees Bristle Cone Pine and Giant Sequoia8
9. Take the cookie tour. Draw and label the tree cookie in the presentation in your journal. Diagram in journal9
10. Get ready to take the cookie tour. You and your group will earn six badges. Click on each badge and document in your journal the information that you have learned about each condition. Journal work

 


Dendrochronolgoy: QR Challenge

https://www.classtools.net/QR/decode.php?text=Describe-the-job-of-a-is-a-paleoclimatologist.

Question 1 (of 10)

 


Dendrochronolgoy: QR Challenge

https://www.classtools.net/QR/decode.php?text=Why-would-a-scientist-want-to-be-able-to-compare-weather?--Give-two-examples.2

Question 2 (of 10)

 


Dendrochronolgoy: QR Challenge

https://www.classtools.net/QR/decode.php?text=Describe-what-makes-a-tree-ring.-Draw-a-picture-of-it-in-your-journal-if-you-can.

Question 3 (of 10)

 


Dendrochronolgoy: QR Challenge

https://www.classtools.net/QR/decode.php?text=What-is-the-function-of-the-cambium-layer,-why-is-it-so-important-to-tree-ring-dating?

Question 4 (of 10)

 


Dendrochronolgoy: QR Challenge

https://www.classtools.net/QR/decode.php?text=How-would-you-compare-trees-grown-in-areas-with-4-seasons-to-trees-grown-in-areas-with-only-two-seasons?

Question 5 (of 10)

 


Dendrochronolgoy: QR Challenge

https://www.classtools.net/QR/decode.php?text=How-can-a-scientist-find-out-what-climate-the-tree-grew-in-and-what-the-environment-was-like?-There-are-three-ways!

Question 6 (of 10)

 


Dendrochronolgoy: QR Challenge

https://www.classtools.net/QR/decode.php?text=Trees-have-many-parts,-draw-and-label-the-parts-of-a-tree-in-your-journal-using-the-diagram-provided.

Question 7 (of 10)

 


Dendrochronolgoy: QR Challenge

https://www.classtools.net/QR/decode.php?text=Click-through-the-presentation-until-you-get-to-Majestic-trees.-Identify-the-oldest-known-tree.-Identify-the-year-for-the-tree-that-we-saw-up-at-Big-Trees

Question 8 (of 10)

 


Dendrochronolgoy: QR Challenge

https://www.classtools.net/QR/decode.php?text=Take-the-cookie-tour.-Draw-and-label-the-tree-cookie-in-the-presentation-in-your-journal.

Question 9 (of 10)

 


Dendrochronolgoy: QR Challenge

https://www.classtools.net/QR/decode.php?text=Get-ready-to-take-the-cookie-tour.-You-and-your-group-will-earn-six-badges.-Click-on-each-badge-and-document-in-your-journal-the-information-that-you-have-learned-about-each-condition.

Question 10 (of 10)