Understanding Mrs. Chan's Pencil Problem

What is the main problem Mrs. Chan is facing in the video?

• She doesn't know how to draw a model.

• She doesn't know how to distribute the pencils.

• She doesn't know how many pupils are in the group.

• She doesn't know how many pencils she bought.

In Case 1, what does the keyword 'left' indicate?

• Mrs. Chan has the exact number of pencils.

• Mrs. Chan has excess pencils.

• Mrs. Chan has too few pencils.

• Mrs. Chan needs more pencils.

What does the keyword 'need' signify in Case 2?

• Mrs. Chan has a shortage of pencils.

• Mrs. Chan has too many pencils.

• Mrs. Chan has excess pencils.

• Mrs. Chan has the exact number of pencils.

What concept is applied to solve the problem involving excess and shortage?

• Multiplication and Division

• Gap and Difference

• Probability and Statistics

• Addition and Subtraction

How is the model for Case 1 different from Case 2?

• Both cases have excess.

• Case 1 has excess, Case 2 has a shortage.

• Both cases have a shortage.

• Case 1 has a shortage, Case 2 has excess.

What is the purpose of drawing models for Case 1 and Case 2?

• To visualize the number of pencils Mrs. Chan has.

• To calculate the total number of pencils.

• To determine the cost of pencils.

• To understand the difference in the number of pencils given to each pupil.

What is the difference in the number of pencils given to each pupil in the two cases?

• Four pencils

• One pencil

• Two pencils

• Three pencils

How many pupils are there in the group according to the solution?

• Ten pupils

• Nine pupils

• Eight pupils

• Seven pupils

What is the total gap in units between the two cases?

• 20 units

• 18 units

• 15 units

• 10 units

What is the final step in solving the problem?

• Calculating the total number of pencils.

• Identifying the keywords.

• Finding the number of pupils.

• Drawing the model.