MathRack Activity Cards Purpose: To use the MathRack in conjunction with early number sense ‘Activities’ to develop understanding of number sense through Quick Images, Show Me activities, Number Strings, and Situational Problem Solving. How to use the MathRack: The start position for the MathRack is ‘white to right’. All the beads to the right. The beads ‘in play’ are moved to the left. This example shows 7 + 8 QUICK IMAGES Rationale: Children will recognize and name how many objects are in a small group without counting. (subitizing) The different colors and embedded five structure of the MathRack helps children build mental images of numbers. The activity emphasizes cardinality (how many), spatial relationships, and overall number sense. Directions: Briefly display an arrangement of beads and then cover it up to give children time to think about it. Then ask them to tell a partner how many they saw and why they think that number is correct. Show the images long enough to allow children to see the beads and groups of five but not long enough for them to count beads individually. This time constraint encourages children who are counting each bead to shift to strategies that are more efficient. Differentiation: The cards consist of images less than 5, then 3- 6 on one row of the MathRack, then 7-9 on two rows, and then place value of numbers 20-100. These are just examples of what can be shown during quick images, you can do the same routine but create different quick images using your MathRack. #study #teacher #naperville #math #earlyeducation
