Exploring Bar Model Word Problems in 1st Grade Math

This video tutorial introduces first graders to subtraction using bar models. It covers three practical examples: cars, birds, and oranges, to illustrate how subtraction works. Each example is broken down step-by-step, showing how to use visual aids like counters and bar models to understand subtraction sentences. The video aims to help students grasp the concept of taking away and finding the remaining quantity.

If there are 6 cars and 4 drive away, how many are left?

• 2 cars

• 4 cars

• 6 cars

• None

Tags

CCSS.2.OA.A.1

What does the bar model help us visualize in subtraction?

• The remaining amount

• The amount that drove away

• Both the total and the remaining amounts

• The total amount only

Tags

CCSS.1.OA.A.1

In the cars problem, what does the number 4 represent?

• Cars left

• Total cars

• None of the above

• Cars that drove away

Tags

CCSS.1.OA.A.1

Out of 12 birds, if 7 are red, how many are blue?

• 5 birds

• 7 birds

• 12 birds

• None

Tags

CCSS.3.OA.A.3

How does the bar model represent different colors of birds?

• By color-coding the numbers

• By dividing a single bar into parts

• It does not show colors

• By using different bars for each color

How many parts are blue in the birds problem?

• None

• 5 parts

• 7 parts

• 12 parts

Tags

CCSS.1.G.A.3

Sally had 8 oranges and gave 2 to her friend. How many does she have now?

• 10 oranges

• 8 oranges

• 2 oranges

• 6 oranges

Tags

CCSS.2.OA.A.1

What does the subtraction sentence 8 - 2 = 6 represent?

• Oranges Sally has left

• The total number of oranges

• Sally's friend's oranges

• Oranges Sally gave away

Tags

CCSS.2.OA.A.1

How is the number 6 represented in the bar model for Sally's oranges?

• As the total number of oranges

• Not represented

• As part of the original 8

• As a separate bar

Tags

CCSS.2.OA.A.1

What does the bar model visually show in subtraction problems?

• Only the initial amount

• Only the amount subtracted

• The final answer only

• The process of subtraction

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2