Solving Two-Step Word Problems with Bar Models

The video tutorial explains a math problem involving biscuits in two tins. Initially, there are 84 biscuits in one tin and 48 in another. After 97 biscuits are eaten, the task is to determine how many are left. The tutorial uses a bar model to visually represent the problem, showing the total number of biscuits and how many are eaten. By adding the biscuits from both tins, the total is calculated as 132. Subtracting the 97 eaten biscuits results in 35 biscuits remaining. The tutorial emphasizes understanding through visual representation and basic arithmetic operations.

How many biscuits were there in the first tin?

• 84

• 35

• 97

• 48

Tags

CCSS.2.NBT.B.6

What is the total number of biscuits before any were eaten?

• 181

• 84

• 97

• 132

Tags

CCSS.2.OA.A.1

How many biscuits are there in the second tin?

• 48

• 35

• 84

• 97

Tags

CCSS.1.NBT.A.1

How many biscuits were eaten?

• 35

• 97

• 84

• 48

Tags

CCSS.2.OA.A.1

What does the size of the bar represent in the visual aid?

• Number of tins

• Number of biscuits

• None of the above

• Size of the tin

Tags

CCSS.6.RP.A.3A

What action results in the decrease of the total number of biscuits?

• Drawing the bar

• Adding to the tin

• Moving the tin

• Eating the biscuits

Tags

CCSS.1.OA.A.1

Which bar is drawn bigger to represent more biscuits?

• Left biscuits

• First tin

• Eaten biscuits

• Second tin

Tags

CCSS.4.NF.A.2

What does the bottom bar represent in the context?

• Biscuits eaten

• Biscuits left

• None

• Total biscuits

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

How are the top and bottom bars related in length?

• Bottom longer

• Same length

• Top longer

• Not related

Tags

CCSS.7.RP.A.2C

What is the final number of biscuits left after some were eaten?

• 84

• 132

• 35

• 97

Tags

CCSS.2.OA.A.1