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Twenty-sided dice (or lots), marked XI on two adjoining faces. Circa 1st-2nd century A.D., Roman Imperial period.


"roll and write"--use 1/2 sheet of binder paper (long). Each student had a different assignment. They all started the same, but when the reached mastery score 3 days in a row, it was upped. We started with adding both numbers. Some of my kids (2nd/3rd grade) were multiplying with 20 sided dice!

from Masterpiece Music

20 sided dice

Looking for an innovative way to have your students practice a passage or skill several times? How about a 20 sided dice? Roll the die and whatever number comes

from io9

Adorable sculpted dragons guard your 20-sided dice

Adorable sculpted dragons guard your 20-sided dice...Magic the gathering...