Page 65 - NUMINO TG_6A
P. 65
04Unit With Parentheses
jOb ective Use the order of operations.
1. Textbook Instructions 04 With Parentheses
In this unit students will learn the order of Learn about the order of operations.
operations in problems with fractions.
Start off by introducing the order of Order of operations
operations with no parentheses. Perform operations in parentheses first.
Multiply and divide from left to right.
Let’s talk about what the order of Add and subtract from left to right.
operations are.
Have the students read the textbook When solving problems with Performing different operations
definition.
Solve this problem that doesn’t have no parentheses, first multiply with the same numbers result
parentheses, using the order of
operations. or divide from left to right. 2 in different values.
Have the students calculate “3 5 4 2”.
Give them enough time to finish on their own. Have students follow the steps to Have them check the problems below
In problems without parentheses, the get the answer. by following the order of operations.
operations determine which numbers to
calculate first, and the order in which the 3 5 4 2 = 15 4 1 2 3=5
operations are calculated changes the 1 2 3=6
value. = 15 2 1 2 3=7
Have the students complete the three given
problems to see how operations and their = 17
order within the same numbers change the
value. Insert different operation symbols between numbers to make different
The numbers 1, 2, 3, and 4 are written on values. Answers may vary. Have students check their work with classmates.
the chalkboard. Have the students use ,
Sample Answers 1 2 3 4= 1
, , and between the numbers to
make different values. 1 2 3 4 = 10
1 2 3 4= 4 1 2 3 4 = 14
1 2 3 4= 2 1 2 3 4= 3
28
2. Build Understanding
Problems: Have the students practice using the order of operations by evaluating expressions without
parentheses.
1. 12 3 8 5 2. 42 30 6 8 3. 20 7 2 8
4. 10 3 32 8 5. 15 3 18 2 6. 40 2 12 24 4
Answer: 1. 12 3 8 5 76 2. 42 30 6 8 45 3. 20 7 2 8 14
4. 10 3 32 8 34 5. 15 3 18 2 14 6. 40 2 12 24 4 22
048 NUMINO Teacher s Guide
jOb ective Use the order of operations.
1. Textbook Instructions 04 With Parentheses
In this unit students will learn the order of Learn about the order of operations.
operations in problems with fractions.
Start off by introducing the order of Order of operations
operations with no parentheses. Perform operations in parentheses first.
Multiply and divide from left to right.
Let’s talk about what the order of Add and subtract from left to right.
operations are.
Have the students read the textbook When solving problems with Performing different operations
definition.
Solve this problem that doesn’t have no parentheses, first multiply with the same numbers result
parentheses, using the order of
operations. or divide from left to right. 2 in different values.
Have the students calculate “3 5 4 2”.
Give them enough time to finish on their own. Have students follow the steps to Have them check the problems below
In problems without parentheses, the get the answer. by following the order of operations.
operations determine which numbers to
calculate first, and the order in which the 3 5 4 2 = 15 4 1 2 3=5
operations are calculated changes the 1 2 3=6
value. = 15 2 1 2 3=7
Have the students complete the three given
problems to see how operations and their = 17
order within the same numbers change the
value. Insert different operation symbols between numbers to make different
The numbers 1, 2, 3, and 4 are written on values. Answers may vary. Have students check their work with classmates.
the chalkboard. Have the students use ,
Sample Answers 1 2 3 4= 1
, , and between the numbers to
make different values. 1 2 3 4 = 10
1 2 3 4= 4 1 2 3 4 = 14
1 2 3 4= 2 1 2 3 4= 3
28
2. Build Understanding
Problems: Have the students practice using the order of operations by evaluating expressions without
parentheses.
1. 12 3 8 5 2. 42 30 6 8 3. 20 7 2 8
4. 10 3 32 8 5. 15 3 18 2 6. 40 2 12 24 4
Answer: 1. 12 3 8 5 76 2. 42 30 6 8 45 3. 20 7 2 8 14
4. 10 3 32 8 34 5. 15 3 18 2 14 6. 40 2 12 24 4 22
048 NUMINO Teacher s Guide
