Concrete and Abstract Model Comparisons

The video tutorial demonstrates how to use regrouping for addition through a problem involving stickers. It explains the process using concrete, pictorial, and abstract models. The concrete model involves building numbers with a place value chart, while the pictorial model uses drawings. The abstract model employs an algorithm to solve the problem. The video concludes with a summary of the solution and encourages viewers to explore more math strategies.

What is the initial problem presented in the video?

• Amy has 18 stickers and Alexis has 24 stickers. How many stickers do they have together?

• Amy has 24 stickers and Alexis has 18 stickers. How many stickers do they have together?

• Amy has 18 stickers and Alexis has 18 stickers. How many stickers do they have together?

• Amy has 24 stickers and Alexis has 24 stickers. How many stickers do they have together?

What is the first step in the concrete model demonstration?

• Drawing a place value chart with hundreds and tens

• Drawing a place value chart with tens and ones

• Drawing a place value chart with tens and hundreds

• Drawing a place value chart with ones and hundreds

How many ones are there in the ones place before regrouping in the concrete model?

• 10

• 11

• 12

• 13

What do we do with 10 ones in the concrete model?

• Leave them in the ones place

• Move them to the hundreds place

• Compose them into a ten and move to the tens place

• Compose them into a hundred and move to the hundreds place

What is the final answer obtained using the concrete model?

• 43

• 41

• 40

• 42

How does the pictorial model compare to the concrete model?

• It is not similar at all

• It is very similar

• It is somewhat similar

• It is completely different

What is the first step in the abstract model using an algorithm?

• Adding the tens place first

• Adding the ones place first

• Subtracting the ones place first

• Subtracting the tens place first

What do we do when we get 12 ones in the ones place in the abstract model?

• Record 12 ones in the ones place

• Move them to the hundreds place

• Compose a ten out of 10 ones and regroup it to the tens place

• Leave them in the ones place

What is the final answer obtained using the abstract model?

• 40

• 41

• 43

• 42

What is the solution sentence for the problem?

• Amy and Alexis have 40 stickers all together.

• Amy and Alexis have 42 stickers all together.

• Amy and Alexis have 41 stickers all together.

• Amy and Alexis have 43 stickers all together.