Hundred Number Grid (0-99)

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    1. Sieve of Eratosthenes

      A prime number is a natural number that is greater than one and only has two factors, one and itself. Use the Sieve of Eratosthenes to find all the prime...
      Grade 6
    2. Stupendous Square Roots

      Follow the directions for Super Squares activity. After each square has been created, ask “what is the square root of the square number 4, 9, 16,” or whatever square number...
      Grade 5, Grade 6
    3. Super Squares

      Put black construction paper down on the numbers 1, 2, 11, and 12. This makes a 2x2 square and the square number four. Have students count the four squares to...
      Grade 4, Grade 5
    4. The Tens Traipse

      Begin by starting at zero. Add ten and step on that number. Continue throughout the 90 number grid. Next take the Tens’ Traipse backwards from 90. Afterward, take the Tens’...
      PreK, Kindergarten, Grade 1
    5. The Nines Step

      Begin by starting at zero. Add nine and step on that number. Continue throughout the 99 number grid. Next take the Nines’ Step backwards from 99. Afterward, take the Nines’...
      Kindergarten, Grade 1
    6. Tally Treats

      Select items for students to count such as pebbles, pennies, buttons, etc. Give each student a small container with items to count. Students count items with tallies. After documenting the...
      Kindergarten, Grade 1
    7. The Sevens Stroll

      Begin by starting at zero. Add seven and step on that number. Continue to 98. Next take the Sevens’ Stroll backwards from 98. Afterward, take the Sevens’ Stroll going forward...
      Kindergarten, Grade 1
    8. The Sixes Saunter

      Begin by starting at zero. Add six and step on that number. Continue to 96. Next take the Sixes’ Saunter backwards from 96. Afterward, take the Sixes’ Saunter going forward...
      Kindergarten, Grade 1
    9. The Fives Stride

      Begin by starting at zero. Add five and step on that number. Continue to 95. Next take the Fives’ Stride backwards from 95. Afterward, take the Fives’ Stride going forward...
      PreK, Kindergarten, Grade 1
    10. The Fours Strut

      Begin by starting at zero. Add four and step on that number. Continue to 96. Next take the Fours’ Strut backwards from 96. Afterward, take the Fours’ Strut going forward...
      Kindergarten, Grade 1

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