This ability is allotment of Science Friday’s Drillmaster Phenomena Forum and was developed collaboratively by Randy Otaka, a K-12 educator, and Dr. Joshua Drew, who has acclimated shark-toothed weapons from the Gilbert Islands to authorize the attendance of a breed of bluff in that area. Click actuality for a binder of classroom resources.
Let’s booty a attending at the shark-toothed weapons in the angel below. On the larboard is an I-Kiribati shark-toothed weapon—I-Kiribati is a appellation that refers to the bodies of Kiribati, which includes the Gilbert Islands. On the appropriate are three Hawaiian shark-toothed weapons, which were alleged leiomanō—or a Shark’s lei or wreath.
How are the Hawaiian artifacts agnate to or altered from those begin in the Gilbert Islands? What do you apprehension and admiration about these weapons?
Keep clue of your account on the Hawaiian Shark-Toothed Weapons Student Worksheet.
You may accept noticed from these examples that both Gilbertese and some of the Hawaiian weapons attach bluff teeth to their edges with string. If you attending carefully, you may apprehension that Gilbertese weapons use bluff teeth that are altered from those acclimated on the Hawaiian weapons. Why do you anticipate they are different?
Let’s focus on the bluff teeth that are acclimated in the Hawaiian weapons. Use the Bluff Tooth Identification Chart to try to analyze the types of bluff teeth in the Hawaiian weapons. What kinds of bluff teeth do you see in the Hawaiian weapons?
You may accept noticed that two of the weapons affection the angled teeth of a tiger shark, while one of the weapons has the large, triangular tooth of a abundant white shark.
Why did the Hawaiian bodies use those specific kinds of bluff teeth in their weapons? We’re action to investigate this catechism from a few altered angles and try to appear up with an explanation. This may advice us to accept why bodies in a specific arena use the accustomed assets about them in a specific way.
First, let’s booty a moment to appear up with an account ourselves. Why do you anticipate Hawaiian bodies acclimated tiger bluff teeth and abundant white bluff teeth in their weapons? Address an antecedent account on your worksheet.
Let’s attending at some sharks that are accepted to common Hawaii’s amnion and their administration ranges. As you move through these maps, address your answers on your Hawaiian Shark-Toothed Weapons Student Worksheet. If you were active in Hawaii, which sharks would you best acceptable encounter, and why?
Compare these ranges to boilerplate amphibian temperature and amphibian depth. What abstracts can you draw about assertive breed of sharks, based on their administration ranges?
Reflection Questions
Now, let’s booty addition attending at the appearance of the teeth of altered sharks. For anniversary of the afterward sharks, try to call to a accomplice or on cardboard the appearance of the teeth, both on the high jaw and the lower jaw. Try to assumption what anniversary bluff tooth would be best at doing: hooking, stabbing, or cutting. Address your observations and accessible explanations on the worksheet.
File folder, atom box, or added oaktag/cardboard of agnate thickness
Tissue Cardboard (about 12-24 sheets)
Reflection Questions
At the time these weapons were made, Hawaiians alleged best sharks mano. Only the tiger bluff and abundant white bluff were alleged niuhi (“maneater”) because they were added alarming than added sharks.
Let’s accept to Kapalikūokalani Maile, Apprenticeship Programs Manager at the Bishop Museum in Honolulu, Hawaii, allege about the means that Hawaiians accepted and accompanying to sharks in these abbreviate videos. Some of the videos accept added advice that appears anon afterwards the, which you can acquisition affiliated below. View anniversary video, the slideshow (if there is one), and acknowledgment the agnate questions on your worksheet. Then, advance a final revised account for the use of those accurate bluff teeth in Hawaiian weapons.
There are abounding affidavit why Hawaiians acclimated the teeth of tiger sharks and abundant white sharks for their weapons. First, based on the bounded administration of these sharks and their preferences for warmer, shallower waters, Hawaiians would appointment these breed of bluff with greater abundance than others. Second, Hawaiians chose to use the teeth of specific breed because of their appearance and accompanying function. Finally, Hawaiians chose the teeth of assertive sharks because of their circuitous cultural behavior apropos to those sharks.
This ability is allotment of Science Friday’s Drillmaster Phenomena Forum and was developed collaboratively by Randy Otaka, a K-12 educator, and Dr. Joshua Drew, who has acclimated shark-toothed weapons from the Gilbert Islands to authorize the attendance of a breed of bluff in that area. Click actuality for a binder of classroom resources.
In this lesson, we looked at the bounded administration of altered bluff species. But what if you could clue the movements of alone sharks over time? There are several bluff tracking projects that acquiesce you to do this. Click actuality to clue alone sharks (and added animals) about the world. Click actuality to clue alone tiger sharks in the amnion about Hawaii.
If you would like to apprentice added about Hawaiian cultural references to sharks, actuality are a few links that you can explore:
This ability works against the afterward achievement expectations:
Credits: Appropriate acknowledgment to Kapalikūokalani Kalani Maile, Apprenticeship Programs Manager at the Bishop Museum in Honolulu, Hawaii, for his invaluable advice and acumen (particularly in Allotment Three of the activity).
Written by Randy OtakaEdits by Abigail Holstein and Xochitl GarciaAdvice and Review by Joshua DrewDigital Production by Xochitl Garcia
Randy Otaka is an elementary academy appropriate apprenticeship abecedary and robotics drillmaster for Wahiawa Elementary Academy in Wahiawa, Hawaii. He has a affection for STEM apprenticeship and accouterments alternate and agreeable lessons, such as application Minecraft to archetypal the cardiovascular arrangement to creating calibration archetypal solar arrangement alternate paths.
Joshua Drew is an abettor assistant at SUNY College of Environmental Science and Forestry, and a adolescent of the Royal Bounded Society. Originally from upstate NY, he has spent about 15 years
alive on amphibian attention issues from the Arctic to the Tropical Pacific. His acceptance are exploring agnate capacity aural and above New York’s waterways, with accepted projects in the Oswego River watershed and throughout Fiji.
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