For the number sentence or diagram, students write a description of a real-life situation. The student uses logical reasoning to make sense of his or her world. Clarifying Activity Students build towers of cubes to represent the factors of numbers on a hundreds chart. For example, red cubes will be placed on multiples of 2, green cubes on multiples of 3, blue cubes on multiples of 4, and so forth. Towers will occur on numbers that are multiples of more than one of these factors.
Students observe and describe the patterns that form.
Then students carefully remove the towers, place them in a bag or box, randomly draw a tower from the bag or box, and try to determine where that tower should be placed on the hundreds chart. The student uses logical reasoning to make sense of his or her world.