ALEX Learning Activity

  

Comparing Amounts

A Learning Activity is a strategy a teacher chooses to actively engage students in learning a concept or skill using a digital tool/resource.

You may save this Learning Activity to your hard drive as an .html file by selecting “File”,then “Save As” from your browser’s pull down menu. The file name extension must be .html.
  This learning activity provided by:  
Author: Michelle Frye
System:Blount County
School:Hayden Elementary School
  General Activity Information  
Activity ID: 2653
Title:
Comparing Amounts
Digital Tool/Resource:
Comparing Amounts Google Slide Show
Web Address – URL:
Overview:

This Google Slide Show activates student thinking about comparing quantities. The slides help students understand the wording for comparing quantities multiplicatively.

This activity results from the ALEX Resource Development Summit.
  Associated Standards and Objectives  
Content Standard(s):
Mathematics
MA2019 (2019)
Grade: 4
1. Interpret and write equations for multiplicative comparisons.

Unpacked Content
Evidence Of Student Attainment:
Students:
  • When given a multiplication equation, create and explain a corresponding verbal multiplicative comparison statement.
    Example: interpret 35 = 5 x 7 as a statement that 35 is 5 times as many as 7 and 35 is 7 times as many as 5.
  • When given a verbal (written or oral) representation of a multiplicative comparison, write and solve the related multiplication equation.

    • Example: Sue has 7 cards and Joe has 5 times as many cards as Sue. The student will write 5 x 7 and accurately find the number of cards Joe has to be 35.
Teacher Vocabulary:
  • Multiplicative comparison
  • Multiplier
  • Equation
  • Times as many
  • Times as much
  • Verbal statement
  • Factor
  • Product
  • Quantity
  • Multiple
  • Scale factor
Knowledge:
Students know:
  • How to write an equation to represent a word situation.
  • Which quantity is being multiplied and which factor is telling how many times.
  • Varied language that describes multiplicative comparisons.
Skills:
Students are able to:
  • Interpret equations for multiplicative comparisons.
  • Write equations for multiplicative comparisons.
Understanding:
Students understand that:
  • Multiplicative comparisons relate the size of two quantities and a scale factor.
  • Factors in multiplication problems have different roles from each other in the context of comparison problems.
  • Explanations and drawings show ways multiplicative comparisons are similar to and different from equal groups and arrays.
Diverse Learning Needs:
Essential Skills:
Learning Objectives:
M.4.1.1: Use arrays to show equal groups in multiplication.
M.4.1.2: Recall basic multiplication facts.
M.4.1.4: Demonstrate computational fluency, including quick recall of addition and subtraction facts.
M.4.1.5: Recognize multiplication as repeated addition.

Prior Knowledge Skills:
  • Identify and define the parts of a multiplication problem including factors, multiplier, multiplicand and product.
  • Use multiplication to find the total number of objects arranged in rectangular arrays based on columns and rows.
  • Write an equation to express the product of the multipliers (factors).
  • Relate multiplication to repeated addition and skip counting.
  • Apply concepts of multiplication through the use of manipulatives, number stories, skip-counting arrays, area of a rectangle, or repeated addition.
  • Apply basic multiplication facts through 9 x 9 using manipulatives, solving problems, and writing number stories.
  • Solve addition problems with multiple addends.
  • Represent addition using manipulatives.
  • Distinguish between rows and columns.
  • Use repeated addition to solve problems with multiple addends.
  • Count forward in multiples from a given number.
    Examples: 3, 6, 9, 12; 4, 8, 12, 16.
  • Recall doubles addition facts.
  • Model written method for composing equations.
Alabama Alternate Achievement Standards
AAS Standard:
M.AAS.4.1 Solve one-step word problems involving real-life situations using the four operations within 100 without regrouping and select the appropriate method of computation when problem solving.
Learning Objectives:

The student will be able to use verbal statements to describe multiplicative comparisons and write a multiplication equation that represents the statement.
  Strategies, Preparations and Variations  
Phase:
Before/Engage
Activity:

The teacher will project the Google Slide Show to the whole group.

  1. Show slide 1 (title slide). Ask the students, "How do we compare amounts? For example, can someone compare the number of boys to girls in this class?"

  2.  Ask students to turn and talk with a peer to come up with a statement that describes the relationship of boys to girls in terms of quantity. Let students share their responses.

  3. Show slide two. Ask the students to look at the pictures of donuts. Say, "Who has more donuts? Can you use multiplication to compare the amounts?" Have students note the sentence starter: Carol has ____ times as many donuts than Jane.

  4. Let students share their responses, explaining their thinking.

  5. Show slide 3. Ask students to think back to the sentence starter on slide two. Ask students to make a comparison of the quantities of donuts in the two pictures.

  6. Allow students to respond.
Assessment Strategies:

Check student work at the conclusion of the activity to assess their understanding. You can use the following guidelines to ensure students meet the learning objective.

Check that the student:

  1. understood making a comparison multiplicatively.

  2. got the correct answer.
Advanced Preparation:

The teacher will need a copy of the Google Slide Show and a projector to show the slides. 
Variation Tips (optional):

This task can be used as a stand-alone activity or in conjunction with The Food Drive (during activity) and Picture This! (after activity).
Notes or Recommendations (optional):

ALCOS 2019

1. Interpret and write equations for multiplicative comparisons.
  Keywords and Search Tags  
Keywords and Search Tags: equations, multiplication, multiplicative comparison