N1A4TNp5

Answers to Problem 5:

Greater than—9.53                 Less than—3.95, 3.59, 5.39, or 5.93

TEACHER NOTES:

During fourth grade, students should have numerous opportunities to read and record whole numbers. These experiences should be within natural contexts as well as during math instruction time.

Students should use models and other strategies to represent and study decimal numbers. Students can investigate decimal numbers on a calculator by counting by tenths, adding one tenth each time while watching the display to see how and where the quantity display changes. They should also have opportunities to relate decimal quantities to fractions and money notation, e.g., 50 cents is $0.50 (or  of a dollar), 25 cents is $0.25 (or  of a dollar), 10 cents = $0.10 (or  of a dollar).

Teachers should also use the inequality symbols of greater than or less than (< or >). Teachers may want to introduce them as part of the number line, which presents an authentic model for the symbols.