Page 73 - NUMINO TG_6A
P. 73
Challenge What Is Left?
jOb ective Solve complex problems with fractions.
1. Textbook Instructions Challenge What Is Left?
Students will solve complex word problems Have students see how expressions can be derived from more complex word problems.
using fractions. Go over the example with the
students and show students the method Have them follow the steps and look at the pictures to solve the problems.
below to help them solve the word problems. 2
Ann had 40 dollars. She used 5 of her money to buy books and used
40 dollars
1 of her remaining money to buy a doll. How much money does Ann
4
have left?
16 dollars 24 dollars 40 dollars Money used to buy books:
? 40 2 = 16 dollars
Money left after buying a doll: 24 5
Money left after buying books:
24 1 6 dollars 24 6 18 dollars 40 16 = 24 dollars
4
Money used to buy a doll:
24 1 = 6 dollars
4
1. Have the students use the method shown 6 = 18
to solve the word problems.
Students can also use the following method How much money does Ann have left? 18 dollars
to solve the problem.
Refer to . 1 . Solve the problem using the method above.
a. Thomas had 12 dollars. He used 1 of his money to buy a pencil case and
6
3 of the remaining money to buy colored pencils.
5
How much money does Thomas have left? Thomas has 4 dollars left.
Money used to buy a pencil case: 12 1 =2 (dollars)
6
Money left after buying a pencil case: 12 2 = 10 (dollars)
Money used to buy colored pencils: 10 3 =6 (dollars)
5
Money left after buying colored pencils: 10 6 = 4 (dollars)
36
2. Build Understanding
Problem 1. 12 dollars
10 dollars
2 dollars
10 3 6 dollars 10 6 4 dollars
5
056 NUMINO Teacher s Guide
jOb ective Solve complex problems with fractions.
1. Textbook Instructions Challenge What Is Left?
Students will solve complex word problems Have students see how expressions can be derived from more complex word problems.
using fractions. Go over the example with the
students and show students the method Have them follow the steps and look at the pictures to solve the problems.
below to help them solve the word problems. 2
Ann had 40 dollars. She used 5 of her money to buy books and used
40 dollars
1 of her remaining money to buy a doll. How much money does Ann
4
have left?
16 dollars 24 dollars 40 dollars Money used to buy books:
? 40 2 = 16 dollars
Money left after buying a doll: 24 5
Money left after buying books:
24 1 6 dollars 24 6 18 dollars 40 16 = 24 dollars
4
Money used to buy a doll:
24 1 = 6 dollars
4
1. Have the students use the method shown 6 = 18
to solve the word problems.
Students can also use the following method How much money does Ann have left? 18 dollars
to solve the problem.
Refer to . 1 . Solve the problem using the method above.
a. Thomas had 12 dollars. He used 1 of his money to buy a pencil case and
6
3 of the remaining money to buy colored pencils.
5
How much money does Thomas have left? Thomas has 4 dollars left.
Money used to buy a pencil case: 12 1 =2 (dollars)
6
Money left after buying a pencil case: 12 2 = 10 (dollars)
Money used to buy colored pencils: 10 3 =6 (dollars)
5
Money left after buying colored pencils: 10 6 = 4 (dollars)
36
2. Build Understanding
Problem 1. 12 dollars
10 dollars
2 dollars
10 3 6 dollars 10 6 4 dollars
5
056 NUMINO Teacher s Guide
