Clarifying Activity Students use base-ten blocks or drawings to solve division problems such as calculating the fuel efficiency of the family car. The student adds, subtracts, multiplies, and divides to solve meaningful problems. Clarifying Activity Students choose two numbers and make a list of all the factors of each one. Students then circle the factors that are common to both lists, and make a list of those common factors. Students identify this list as the set of common factors of the two numbers.
Students can use the list to identify the greatest common factor of the two numbers.
The student adds, subtracts, multiplies, and divides to solve meaningful problems. Clarifying Activity Students use pattern blocks and work with partners to create and model addition and subtraction problems involving fractions. The student estimates to determine reasonable results. Clarifying Activity Students discuss the different strategies for computational estimation involving rounding. Each student selects a strategy that he or she prefers to use and finds another student who prefers a different strategy.