➕ 4th Grade Math · Unit 2

Multiplicative Comparison and Factors

14 short narrated lessons in 3 chapters, each with pictures, a quiz with a hint and a second try, and an explanation for every answer.

Standards: 4.OA.A.1 4.OA.A.2 4.OA.B.4 4.OA.C.5

4th Grade Math · 9 units
  1. 1Place Value and Big Numbers
  2. 2Multiplicative Comparison and Factors
  3. 3Multiplying Multi-Digit Numbers
  4. 4Dividing Multi-Digit Numbers
  5. 5Fraction Equivalence and Comparison
  6. 6Adding, Subtracting and Multiplying Fractions
  7. 7Decimals
  8. 8Measurement
  9. 9Angles and Shapes
Picture from the lesson “What Times as Many Means”
What Times as Many Means
Picture from the lesson “Bar Models for Times as Many”
Bar Models for Times as Many
Picture from the lesson “Times as Many or More Than?”
Times as Many or More Than?

What your child will learn

Times as many

  1. What Times as Many MeansRead a multiplication equation like thirty-five equals five times seven as thirty-five is five times as many as seven.
  2. Bar Models for Times as ManyDraw a bar model to show one amount that is some number of times as many as another.
  3. Times as Many or More Than?Tell apart additive comparison, which asks how many more, from multiplicative comparison, which asks how many times as many.
  4. Times as Many Word ProblemsSolve word problems that use times as many by multiplying or dividing, using a letter for the unknown number.
  5. Times as Many Review ReviewReview multiplicative comparison and the difference between times as many and more than.

Factors and multiples

  1. Finding Factor PairsFind all the factor pairs of a whole number up to one hundred using arrays and multiplication facts.
  2. Marvelous MultiplesList multiples of a number and tell whether a number is a multiple of a given one-digit number.
  3. Prime or Composite?Decide whether a whole number up to one hundred is prime or composite by counting its factors.
  4. Factors and Multiples Review ReviewReview factors, multiples, prime numbers and composite numbers.

Number and shape patterns

  1. Following a Pattern RuleMake a number pattern that follows a given rule, like start at three and add four.
  2. Finding Hidden FeaturesFind features of a pattern that the rule does not say, like the numbers taking turns being odd and even.
  3. Shape PatternsExtend a shape pattern and describe the rule it follows.
  4. Patterns Review ReviewReview making and describing number and shape patterns.
  5. Unit 2 Test: Compare, Factor, and Find PatternsShow what you learned in the whole unit (Times as many, Factors and multiples, Number and shape patterns) by answering mixed questions.

Try a question from this unit

From the lesson “What Times as Many Means”

A bar showing the equation 42 equals 6 times 7.

Which sentence matches 42 = 6 × 7?

  • 42 is 6 more than 7
  • 42 is 6 times as many as 7
  • 7 is 6 times as many as 42
  • 42 is 7 less than 6
Show the answer

42 is 6 times as many as 7. 42 equals 6 times 7, so 42 is 6 times as many as 7.

Hint kids see after a wrong try: “In a times as many sentence, the product is the bigger amount.”

Key words

  • times as many
  • comparison
  • bar model
  • additive comparison
  • multiplicative comparison
  • unknown
  • equation
  • factor
  • factor pair
  • multiple
  • prime number
  • composite number
  • pattern
  • rule
  • term
  • odd
  • even
  • feature
  • shape pattern
  • repeat
← Place Value and Big Numbers All 4th Grade Math units Multiplying Multi-Digit Numbers →

Try these lessons in Kids Shelf

Narrated lessons, pictures and quizzes for every grade from K to 8. Works offline.

Download on the App Store Get it on Google Play