Exploring Equal Groups in Problem Solving

The video tutorial covers Lesson 13, focusing on problems about equal groups using multiplication and division. It introduces a multiplication pattern formula: number of groups times the number in each group equals the total. Three examples are provided: packing marbles in boxes, selling movie tickets, and delivering cars by trucks. Each example demonstrates how to apply the formula to solve word problems, emphasizing the relationship between multiplication and division.

What should you write in the upper right-hand corner of your paper?

• Your favorite color

• The title of the lesson

• Your name, grade, subject, and today's date

• The number of problems

What is the multiplication pattern for equal groups?

• Total minus number in each group

• Total divided by number of groups

• Number of groups times number in each group

• Number of groups plus number in each group

In the first example, how many marbles did Juanita pack in total?

• 850

• 900

• 800

• 750

What is the opposite operation of multiplication?

• Exponentiation

• Division

• Subtraction

• Addition

In the second example, how many tickets were sold if each ticket cost $8 and the total sales were $960?

• 130

• 120

• 110

• 100

In the third example, how many cars were delivered by each truck if 600 cars were delivered by 40 trucks?

• 10

• 15

• 20

• 25

What is the key word to identify the number of items in each group?

• Group

• Number

• Each

• Total

What should you do if you are missing a factor in a multiplication equation?

• Add the numbers

• Subtract the numbers

• Multiply the numbers

• Divide the numbers

What is the formula for finding the total in equal groups problems?

• n * g = t

• n / g = t

• n - g = t

• n + g = t

What should you do after completing the mastery check questions?

• Start a new lesson

• Take a break

• Go over the lesson practice problems together

• Submit your answers