Mathematics Grade 1 Fact Families

Mathematics
Grade 1
Fact Families
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Dear Parent or Guardian:
Your child is currently learning to recognize the relationship
between addition and subtraction using fact families. Here is your
chance to help your child practice this important skill.
In this PAL Packet you will find a short activity for you and your
child to do. Please do the activity and The Back Page this evening.
Then sign your name on The Back Page and have your child return it
tomorrow.
Remember, parents are a child’s first teacher. Thank you for your
time and energy in making learning fun and exciting for your child.
Sincerely,
_________________________
Your child’s teacher
Grade 1 – Fact Families
© 2004 Evans Newton Incorporated
1
Last printed 8/27/04
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RECOGNIZING THE RELATIONSHIP BETWEEN
ADDITION AND SUBTRACTION
Parent Pointer —
Your child is learning about how addition and subtraction are related.
The opposite of addition is subtraction, and the opposite of
subtraction is addition. A fact family is a number sentence that shows
a relationship between mathematical operations, such as addition and
subtraction. Using fact families is a way your child can see how these
two operations are related and which number sentences belong or do
not belong in a fact family. Your child, when in higher grades, will also
be using fact families to show the relationship between multiplication
and division.
Math in the Home, on the Go, and for the Fun of It —
DIRECTIONS: Read and talk about the Making Fact Families
reference sheet to your child. Be sure he or she understands that only
the numbers 3, 5, and 8 can be members of this fact family. The
answer to the “What do you think?” question is that 8 + 3 = 11 does not
belong to this fact family because 11 is not one of the three numbers in
the fact family. Read the directions to the activity on the Do I
Belong? activity page to your child. Have fun working with him or her
to complete the activity.
Talk about It —
After you have finished the activity, turn to The Back Page to have
your child show what he or she knows.
Now go have some fun with the activity! (
Grade 1 – Fact Families
© 2004 Evans Newton Incorporated
2
Last printed 8/27/04
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Making Fact Families
The numbers 3, 5, and 8 can make a fact family.
+
3+5=8
+
5+3=8
8–3=5
8–5=3
Fact Family
2 addition and 2 subtraction number sentences
3+5=8
5+3=8
8−3=5
8−5=3
What do you think? Have you child explain why
8 + 3 = 11 does not belong to this fact family.
Grade 1 – Fact Families
© 2004 Evans Newton Incorporated
3
Last printed 8/27/04
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Do I Belong?
Materials: 1 red crayon and 1 blue crayon (or 2 crayons of
different colors if red and blue are not available)
Directions: If all four number sentences belong to a fact
family, have your child draw a blue ring around them. If a
number sentence does not belong in a fact family, have your
child draw a big red X through it. If a blue ring was drawn
around the fact family, have him or her write the three
numbers used on the lines under the shape.
4 + 11 = 15
11 + 4 = 15
15 − 4 = 11
15 − 11 = 4
6 + 7 = 13
7 + 6 = 13
13 − 6 = 7
7−6=1
2+6=8
6+2=8
6−2=4
8−6=2
8 + 9 = 17
9 + 8 = 17
17 − 8 = 9
17 − 9 = 8
Grade 1 – Fact Families
© 2004 Evans Newton Incorporated
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Last printed 8/27/04
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The Back Page
Talk about It
Parent —
Ask your child the following questions:
9Does the number sentence 6 + 13 = 19 belong to the
fact family that contains the numbers 6, 7, and 13?
9Why does or why doesn’t this number sentence
belong?
Write your child’s answers to the above questions on the
reverse side of this page.
OR
Do one of the following activities on the reverse side of
this page:
9Write three numbers. Have your child use these
numbers to write a fact family.
9Write three number sentences that belong to a fact
family and one that does not belong. Then have your
child draw an X on the number sentence that does not
belong.
__________________________ _________________________
Student’s Name
Parent or Guardian’s Signature
Grade 1 – Fact Families
© 2004 Evans Newton Incorporated
5
Last printed 8/27/04