Page 213 - NUMINO TG_4A

14Unit Different Signs

jOb ective Learn the method for checking the quotient.

115_G4U11_TG_CA 2011.4.1 5:51 PM ˘ ` 162 PDF out 2540DPI 150LPI T 0

UNIT

1. Textbook Instructions 14 Different Signs

Students will learn how to find the quotient Complete number sentences by filling in with operation signs.
when the divisor is two-digits.
15 3 = 5 24 4 = 6
First, show the students how to check the 3 5 = 15 4 6 = 24
quotient.
Find the quotient for 15 3 by using the
counters in the textbook. How many
groups do the 15 counters need to be
divided into? 3 equal groups.
Have the students divide the 15 counters
into 3 equal groups. How many counters
are in each group? 5 counters.
What is the quotient for 15 3? 5.
Write the multiplication sentence that is
the opposite of the division sentence.
3 5 15
What is the operation sign that fills in the
circle? Multiplication sign ( ).

26 3 = 8 r2 33 5 = 6 r3
3 8 2 = 26 5 6 3 = 33

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2. Build Understanding

Have the students check their quotient when dividing a 2-digit number by a 1-digit number by using
counters. To learn the method for checking the quotient.

15 3 5 24 4 6 26 3 8 r2 33 5 6 r3

196 NUMINO Teacher s Guide