Comparison Bars in Mathematics

The video tutorial introduces the use of comparison bars in math to model comparison situations. It starts with kindergarten students using matching drawings and progresses to first graders using a comparison model. The tutorial includes a problem-solving example where students determine how many pencils Cal has compared to Madison. The video emphasizes understanding the story context, using comparison bars, and writing equations to solve problems. It concludes with an interactive session where students explain their strategies and equations.

What is the primary purpose of using comparison bars in math?

• To learn addition

• To practice subtraction

• To model comparison situations

• To solve multiplication problems

What is the main goal of using comparison bars in math?

• To learn division

• To practice multiplication

• To model comparison situations

• To solve addition problems

What is the purpose of the comparison model in math?

• To practice subtraction

• To solve multiplication problems

• To model comparison situations

• To learn addition

What is the main goal of using comparison bars in math?

• To learn division

• To solve addition problems

• To model comparison situations

• To practice multiplication

How do kindergarten students initially show comparisons?

• By using number lines

• By writing equations

• By drawing matching sticks

• By using comparison bars

What does the top bar represent in the first-grade comparison model?

• The difference quantity

• The larger quantity

• The total quantity

• The smaller quantity

What is the difference quantity represented by in the comparison model?

• A rectangle

• A square

• A triangle

• An oval

What does the larger bar in the comparison model represent?

• The difference quantity

• The larger quantity

• The total quantity

• The smaller quantity

What is the purpose of the oval in the comparison model?

• To represent the larger quantity

• To represent the difference quantity

• To represent the total quantity

• To represent the smaller quantity

In the example problem, how many more pencils does Cal have than Madison?

• 5

• 4

• 7

• 6