1. From grade 5 Investigations, Investigation 7, "Name that Portion:"
Wednesday, June 11, 2008
a. For the first game of the session, 100 people came, and 1/4 of them walked. How many people walked?
b. For the second game of the season, 200 people came, and 1/4 of them walked. How many people walked?
c. What fraction of the 100 people did not walk? What fraction of the 200 people did not walk?
d. How many of the 100 people did not walk? How many of the 200 people did not walk?
2. From grade 5 Singapore Math (workbook 5a) exercise 13 of "Fractions:"
After spending $30 on a dress, Mary had 3/8 of her money left. How much money did she have at first?
4/7 of a group of children are boys. If there are 18 more boys than girls, how many children are there altogether?
Enumerate the math skills involved in each problem.
Explain which problem set involves less spoon-feeding by authority figures and more student-centered discovery.
Discuss how the two problem sets reflect the cultural and political differences between American and Singaporean societies.