Solving Equal Groups Word Problems with Bar Models

The video tutorial teaches how to solve equal groups word problems using bar models. It explains the relationship between multiplication and division, and provides examples involving ribbon length, gumball sharing, and book distribution. The tutorial emphasizes the importance of identifying the number of groups, the amount in each group, and the total items. It also highlights the efficiency of using bar models over drawing pictures for solving such problems.

What are the three key elements to identify when solving equal groups word problems?

• Number of groups, amount in each group, total items

• Number of groups, size of each piece, total length

• Amount in each group, total items, size of each piece

• Total items, number of groups, size of each piece

How can you rewrite a division problem to make it easier to solve?

• By adding the numbers

• By converting it into a multiplication problem

• By subtracting the numbers

• By dividing it again

If a ribbon is cut into 4 equal pieces, each 6 inches long, what was the original length of the ribbon?

• 18 inches

• 20 inches

• 30 inches

• 24 inches

In the gumball sharing problem, how many people shared the gumballs if each person got 9 gumballs and there were 27 gumballs in total?

• 5 people

• 4 people

• 3 people

• 2 people

What is the benefit of using bar models in solving word problems?

• They help visualize the problem and solve it faster

• They require more time to draw

• They make problems more complex

• They are only useful for addition problems

What symbol is used to represent the unknown number of persons in the gumball problem?

• R

• P

• G

• B

How many books does Delia place into each box if she has 81 books and 9 boxes?

• 10 books

• 8 books

• 7 books

• 9 books