The Race to 100

The children take turns rolling the dice, which are labeledu00a0zero 1s tou00a0five 1su00a0onu00a0the first die andu00a0zero 10s tou00a0five 10s on the second die. Afteru00a0a studentu00a0rolls theu00a0two dice, he takes theu00a0rodsu00a0and cubes representing the number of 10s and 1s he rolled and puts them on his mat. It is then the next player's turn to roll. When a player has ten or more 1s cubes on his mat, he must replace ten 1s with a 10s rod before he hands over the dice for the nex...

 Understanding Factors Through Divisibility

This is appropriate for 4th or 5th graders and involves finding the smallest number divisible by 2, 3, 4, 5, 6, 9, and 10. Directions: Teach the students how to tell if a number is divisible by 2, 3, 4, 5, 6, 9, & 10. Give groups ofu00a0two tou00a0four students the divisibility rules on a sheet of paper, and challenge them to find the smallest number divisible by all of the numbers listed above. Eventually the students, with or without help from the teacher, will come to reali...