Unit 1 Factors and Multiples

In Unit 1 students will:

  • Find all factor pairs for a whole number in the range of 1-100.  Recognize that a whole number is a multiple of each of its factors.  Determine whether a given whole number in the range 1-100 is a multiple of a given one-digit number.  Determine whether a given whole number in the range 1-100 is prime or composite.
  • Interpret a multiplication equation as a comparison, e.g., interpret 35=5X7 as a statement that 35 is 5 times as many as 7 and 7 times as many as 5.  Represent verbal statements of multiplicative comparisons as multiplication equations.
  • Generate a number or shape pattern that follows a given rule.  Identify apparent features of the pattern that were not explicit in the rule itself.  For example, given the rule "Add 3" and the starting number 1, generate terms in the resulting sequence and observe that the terms appear to alternate between odd and even numbers.  Explain informally why the numbers will continue to alternate in this way.

By the end of Unit 1 your child students should be able to answer the following questions:

  • How many ways can I interpret a multiplication equation?
  • How many different factors can I use to describe numbers 1-100?
  • How can patterns help me make generalizations about number sequences?
  • How many different ways can I describe a whole number?
  • How can I use properties to help me solve multiplication equations?

The following videos explain some of the topics covered in Unit 1.

 Commutative Property

Distributive Property

Identity Property

Finding Factor Pairs

Finding Multiples of a Number

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