What do you notice? What do you wonder?

photograph of student work. Noah's 9 pages. connecting cube tower, 9. Clare's 8 times as many pages. connecting cubes tower, 9, repeated 5 times. connecting cube towers, 5. repeated 3 times. run off page. crossed out. Text at the bottom, quote not finished, sad face drawn. 

1. Mai and Andre compare the numbers of pages they read on the first day of the reading competition.

   

   diagram. two rectangles. bottom rectangle, Andre's pages. partitioned into 9 equal parts, total length question mark. Top rectangle, Mai's pages. Same size as one of 9 parts of bottom rectangle, labeled 15.

   What would be a good estimate for the number of pages Andre read?

2. The diagram shows the pages Lin and Kiran each read on 1 day of the reading competition.

   

   diagram. two rectangles. bottom rectangle, Kiran's pages. partitioned into 6 equal parts each labeled 9, total length question mark. Top rectangle, Lin's pages. Same size as one of 6 parts of bottom rectangle, labeled 9.

   1. Complete the statement and explain how you know.

      Kiran read _____ times as many pages as Lin.

   2. Write a multiplication equation that compares the pages read by Lin and by Kiran.

   3. How many total pages did Kiran read?

3. Jada read some pages. Han read 60 pages altogether.​​​​​​

   

   diagram. two rectangles. bottom rectangle, Han's pages. partitioned into 3 equal parts each labeled question mark, total length 60. Top rectangle, Jada's pages. Same size as one of the 3 parts of bottom rectangle, labeled question mark.

   1. How many times as many pages as Jada did Han read? Explain how you know.
   2. Write a multiplication equation to compare the pages Han read with the number of pages Jada read. Use a symbol to represent the unknown.
   3. How many pages did Jada read? Explain how you know.

4. Elena reads 72 pages. Clare reads 9 pages.

   

   diagram. two rectangles. bottom rectangle, Elena's pages. partitioned into 2 parts. One part labeled 9. Other part unknown. total length, 42. Top rectangle, Clare's pages, same length as left part of bottom rectangle, also labeled 9.

   1. How is this diagram different from the earlier diagrams?
   2. Write a multiplication equation to compare the pages read by Elena and by Clare. Use a symbol to represent the unknown.
   3. How many times the number of pages as Clare does Elena read?

For each situation:

• Write an equation to represent the situation. Use a symbol to represent the unknown. 
• Draw a diagram to show the comparison.
• Answer the question about the situation.

1. Lin read 7 books. Diego read 8 times as many books as Lin.

   1. Equation:

   2. Diagram:

   3. How many books did Diego read?

2. Tyler has some books. Clare has 72 books, which is 12 times as many books as Tyler. 

   1. Equation:

   2. Diagram:

   3. How many books does Tyler have?

3. Noah read 13 books. Elena read 130 books.

   1. Equation:

   2. Diagram:

   3. Complete the statement:

      _______________ read _____ times as many books as _______________.