Miss Becky's Number Rule Dice. Directions: use the dice with any 100 or 120 number chart. This activity allows student's to discover and identify patterns as they move their piece around the chart to follow the rule on the dice. I use a large 120 chart with different colored squares (centers cut out so they can see the number they're on). Students working independently, can choose to use a personal 120 chart. This product is great for independent choices, partner work, and as a small group center. There are many ways you can differentiate this activity for a variety of learners.