Trilobites

FossilsComparing StructuresOn MoodleFind the Comparing Structures WkstOpen it in NotabilityWrite your name at the topOpen a Trilobite Info reading at your level Use the color given by your teacherRed/orange/honors=3Yellow/green=2Blue/purple=1Learning TargetI can use anatomical structure to compare and infer relationships between organisms.

Success criteria: I am successful when I can make a claim about age or relationships and support it with evidence.

FossilsScientists have recently uncovered some fossils buried deep under the ocean.They are sending you samples for your expert opinion.

Group by SimilarityPlease categorize or group your paper organisms by similarities you find.

Group by SimilarityAnswer the following questions in your document1. Which characteristics did you use to group these organisms? (Please be specific)2. Which was the most difficult to group/categorize? Why? (EXPLAIN)

Regroup by AgeFurther organize your organisms by putting them in a timeline order. Oldest on the bottom!

Group by SimilarityAnswer the following questions in your document3. How did you decide where to place each organism on the timeline?4. Which was the most difficult to group/categorize? Why? (EXPLAIN)

Take a photo of your timeline organization and insert it on your worksheet.

Now that you are an expertWe are going to look at some new organisms.An investigation into fossilsTrilobites

Red/OrangeFind in front

Yellow/GreenFind in middle

Blue/IndigoFind in backFind a partner within the same color as you.Stop after each paragraph and write a one-sentence summary (in your Notability document)

Paragraph 1:Paragraph 2:Paragraph 3:

Find a comfy spot in the room. Read with your partner.Cut out your trilobites.Keep the numbers!!!

When you are done reading and writing, your teacher will place you with another group (total 4 people).Get a trilobite worksheet from the back table.

Group by SimilarityNow that you know a little bit about trilobites, please categorize or group your paper trilobites by similarities you find.Dont forget the characteristics you used with the Nintendo fossils.

Group by SimilarityAnswer the following questions in your document1. Which numbers did you group together?2. Which characteristics did you use to group these organisms? (Please be specific)3. Which was the most difficult to group/categorize? Why? (EXPLAIN)

Regroup by AgeReorganize your trilobites and put them in a timeline order.Oldest on bottom*Hint*- think about your similarity groups-could they help you?

Regroup by AgeConsider this

If you have organized into one timeline,

consider that more than one could have existed at the same time.

Take a moment to make any last minute changes.Take a photo of your timeline organization and insert it on your worksheet.

Regroup by AgeAnswer the following questions in your document:8. How did you decide where to place each organism? 9. What made you think an organism was older? Younger?(Please be specific)10. Which was the most difficult to group/categorize? Why? (EXPLAIN)

CompareYour teacher will pair you with another group.Travel to their poster to observe their final trilobite organization.Bring your iPad along to make notes. Take a picture and insert it with a heading Partner group by Age.Answer the following question in your document:11. Did this group organize the same as your group? If not, EXPLAIN. Note any specific differences.

We will now look at the real organization of these trilobites.

Return to your seats.

1.2.3.7.8.9.6.4.5.Answer KeyOldestYoungest

Reflection12. Compared to the actual timeline, were you accurate? EXPLAIN13. Why did we always put the oldest at the bottom?14. What was frustrating about this activity?15. What would have made it easier to complete accurately?16. Think about actual scientistsdo they ever get an actual answer? EXPLAIN17. How can scientists use fossils to predict possible connections/relationships to other organisms?18. Are there any organisms today that you think could be related to the trilobite? Why do you think this?Possible relativesIsopod=Roly Poly

Silverfish

Horseshoe crab

Cockroach

More present day impostersChitonTadpole shrimp

ENDA new discovery!Archaeologists have made a new trilobite discovery and shipped a diagram for your immediate action.Where would you place this most recent finding in your timeline?Does it make you rethink your organization?Draw arrows, circles, etc. if you feel changes are necessary.Take a picture and insert it with a heading, Group by Age.SMM FossilsTake a picture of each of your fossils and insert into your document.Think about: Is there a way to show size?Label them 1, 2, 3, etc. so you can write about them.

SMM FossilsLook at your fossils:14. Which do you think is older? Why?Open the Trilobite Tree on Moodle15. Which order (ex: Agnostida) do your trilobites fit into?16. What period (ex: Cambrian) do they fit into?

http://www.trilobites.info

http://www.trilobites.info