Here are the steps to solve this problem: * There were originally 12 seagulls at the beach * 4 seagulls were walking on the sand * So the other 12 - 4 = 8 seagulls must have been flying The equation is: 12 - 4 = 8 So the number of seagulls flying is 8.

1. The following slides are my team’s version of
lesson plans for the math topic of study.
They are shared as suggestions ONLY…please
consider sharing your plans on the dropbox...
we’d love to see how other teachers are
using the program 
We use some of these slides during our lessons to
incorporate different math practices as we do number
talks to help our students practice on skills they need
to develop. Please adjust and use these plans as you
would like
or
toss them in the trash 
HSamuelson

2. Grade 2 ~ Math Topic One: Understanding Addition and Subtraction
Time Line: August 11 – August19, 2014
CCSSM:Operations and Algebraic Thinking
2.OA.1. Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of
adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using
drawings and equations with a symbol for the unknown number to represent the problem.
Number and Operation in Base Ten
2.NBT.5. Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or
the relationship between addition and subtraction.
Mathematical Practices
#7-Make sense of problems and preserve in solving them.
Learning Targets
*I can choose when to use addition or subtraction in a word problem.
*I can represent addition or subtraction word problems using objects, drawings, and equations with unknowns in all
positions.
*I can add and subtract numbers within 100 with ease by applying strategies (decomposing numbers into tens and ones,
using commutative and associative properties) based on the numbers being added subtracted.
Vocabulary
part, sum, addition sentence, whole, plus, add, addend, join, minus, separate, subtraction sentence, difference,
subtract, fewer, more, related facts, equals, doubles, near doubles, number sentence.
Math Tools
number line, base-ten blocks, tens frame, hundreds chart, interactive hundreds chart, counters, cubes, part-part-whole
(vertical), part-part-whole (horizontal) , addition flash cards, subtraction flash cards

3. Monday
Aug.11
Topic 1.1 – Writing Addition Number Sentences TM pg.3A-6B
Vocabulary: part, whole, add, sum, addition sentence, plus (+), equals (=)
Focus: How can word sentences be used to show parts and the whole?
Envision Workbook pages 21-22
Tuesday
Aug.12
Topic 1.2 – Stories About Joining TM pg.7A-10B
Vocabulary: join, part, whole, add, sum, addition sentence, plus (+), equals (=)
Focus: How can you represent a joining story with an addition equation?
Envision Workbook pages 23-24
Wednesday
Aug.13
Topic 1.3 – Writing Subtraction Number Sentences TM pg.11A-14B
Vocabulary: subtract, difference, addition sentence, minus (-)
Focus: How can subtraction equations be used to find the missing part of the whole?
Envision Workbook pages 25-26
Thursday
Aug.14
Topic 1.4 - Stories About Separating TM pg. 15A-18B
Vocabulary: separate
Focus: How can you solve a story about separating using cubes and number equations?
Envision Workbook: pages 27-28
Friday
Aug.15
Topic 1.5 – Stories About Comparing TM pg. 19A-22B
Vocabulary: more, fewer
Focus: How can you solve a story about comparing using math tools and number equations?
Envision Workbook: pages 29-30
Lesson

4. Monday
Aug.18
Topic 1.6 – Connecting Addition and Subtraction TM pg.23A-26B
Vocabulary: related
Focus: How can you write related addition and subtraction equations?
Envision Workbook pages 31-32
Formative Assessment: Quick Check Master 1-6 pg. 63
Tuesday
Aug.19
Topic One Assessment
Wednesday
Aug.20
Thursday
Aug.21
Friday
Aug.22
Lesson

5. *I can choose when to use addition or
subtraction in a word problem.
*I can represent addition or subtraction word
problems using objects, drawings, and equations
with unknowns in all positions.
*I can add and subtract numbers within 100 with
ease by applying strategies (decomposing
numbers into tens and ones, using commutative
and associative properties) based on the
numbers being added subtracted.
Topic 1
Target Skills
Math

9. Math Topic One
Grade Two
Lesson 1.1

12. Use dominoes during the
first lesson to create a
station that can last all
quarter…dominoes can
be used to create
addition and subtraction
sentences as well as to
search for a certain sum
on a domino and record
the different choice.

13. __+__=__ __+__=__ __+__=__ __+__=__
__+__=__ __+__=____+__=____+__=__
__+__=__ __+__=__ __+__=__ __+__=__
1 2 3 4
5 6 7 8
9 10 11 12
http://firstgradeschoolbox.blogspot.com/2011/01/do

14. __-__=__ __-__=__ __-__=__ __-__=__
__-__=__ __-__=____-__=____-__=__
__-__=__ __-__=__ __-__=__ __-__=__
1 2 3 4
5 6 7 8
9 10 11 12
http://firstgradeschoolbox.blogspot.com/2011/01/do

15. Anna has 8 books about cats. She also has 2
books about dogs. How many books does she
have in all? Draw a picture to solve. Write an
equation. Then tell how you know you are
right.Anna has 8 books about cats. She also has 2
books about dogs. How many books does she
have in all? Draw a picture to solve. Write an
equation. Then tell how you know you are
right.Anna has 8 books about cats. She also has 2
books about dogs. How many books does she
have in all? Draw a picture to solve. Write an
equation. Then tell how you know you are
right.Anna has 8 books about cats. She also has 2
books about dogs. How many books does she
have in all? Draw a picture to solve. Write an
equation. Then tell how you know you are
right.Anna has 8 books about cats. She also has 2
books about dogs. How many books does she
have in all? Draw a picture to solve. Write an
equation. Then tell how you know you are
right.Anna has 8 books about cats. She also has 2
books about dogs. How many books does she
have in all? Draw a picture to solve. Write an
equation. Then tell how you know you are
Annahas8booksaboutcats.Shealsohas2
booksaboutdogs.Howmanybooksdoesshe
haveinall?Drawapicturetosolve.Writean
equation.Thentellhowyouknowyouare
right.
Annahas8booksaboutcats.Shealsohas2
booksaboutdogs.Howmanybooksdoesshe
haveinall?Drawapicturetosolve.Writean
equation.Thentellhowyouknowyouare
right.
Annahas8booksaboutcats.Shealsohas2
booksaboutdogs.Howmanybooksdoesshe
haveinall?Drawapicturetosolve.Writean
equation.Thentellhowyouknowyouare
Topic 1.1 Math
Task

16. Math Topic One
Grade Two
Lesson 1.2

20. Whole Number
Part Part

21. Ann is in her garden. She sees 6 red
birds. Then 2 blue birds fly into the
garden. How many birds are there in
all?
Imagine there were 5 red birds in Ann’s
garden. Some blue birds joined them.
Now there are 7 birds in all. How many
birds joined them?
There are 5 frogs in a pond. 4 more
frogs join them. How many frogs are in
the pond now?
Jack sees 7 ladybugs. He sees 3 more.
How many ladybugs does Jack see in
all?
3 ducks are quacking outside. 5 more
ducks begin to quack. 1 bee begins to
buzz. How many ducks are quacking
altogether?
Ben found 6 flowers. Then he found 4
more. How many flowers did he find in
all?
Sara drew 8 stars. Then she drew 7
more. How many stars did Sara draw in
all?
Josh sees 4 clouds. Then he sees 7
more clouds. How many clouds does he
see now?

22. Ann is in her garden. She sees 6 red
birds. Then 2 blue birds fly into the
garden. How many birds are there in
all?
Imagine there were 5 red birds in Ann’s
garden. Some blue birds joined them.
Now there are 7 birds in all. How many
birds joined them?
There are 5 frogs in a pond. 4 more
frogs join them. How many frogs are in
the pond now?
Jack sees 7 ladybugs. He sees 3 more.
How many ladybugs does Jack see in
all?
3 ducks are quacking outside. 5 more
ducks begin to quack. 1 bee begins to
buzz. How many ducks are quacking
altogether?
Ben found 6 flowers. Then he found 4
more. How many flowers did he find in
all?
Sara drew 8 stars. Then she drew 7
more. How many stars did Sara draw in
all?
Josh sees 4 clouds. Then he sees 7
more clouds. How many clouds does he
see now?

23. 1.2 Stories about Joining Name _______________ Date
______________
__+__=__
2 ducks are quacking
outside. 6 more
ducks begin to
quack. 2 bees
begins to buzz. How
many ducks are
quacking altogether?
__+__=__
Imagine there were 4
red birds in Ann’s
garden. Some blue
birds joined them.
Now there are 7
birds in all. How
many birds joined
them?
__+__=__
There are 5 frogs in
a pond. 3 more
frogs join them. How
many frogs are in the
pond now?
__+__=__
Jack sees 6
ladybugs. He sees 3
more. How many
ladybugs does Jack
see in all?
__+__=__
Ann is in her garden.
She sees 7 red birds.
Then 3 blue birds fly
into the garden.
How many birds are
there in all?
__+__=__
Ben found 5 flowers.
Then he found 4
more. How many
flowers did he find in
all?
__+__=__
Josh sees 4 clouds.
Then he sees 7 more
clouds. How many
clouds does he see
now?
__+__=__
Sara drew 8 stars.
Then she drew 7
more. How many
stars did Sara draw
in all?

24. 1.2 Stories about Joining Name _______________ Date
______________
__+__=__
2 ducks are quacking
outside. 6 more
ducks begin to
quack. 2 bees
begins to buzz. How
many ducks are
quacking altogether?
__+__=__
Imagine there were 4
red birds in Ann’s
garden. Some blue
birds joined them.
Now there are 7
birds in all. How
many birds joined
them?
__+__=__
There are 5 frogs in
a pond. 3 more
frogs join them. How
many frogs are in the
pond now?
__+__=__
Jack sees 6
ladybugs. He sees 3
more. How many
ladybugs does Jack
see in all?
__+__=__
Ann is in her garden.
She sees 7 red birds.
Then 3 blue birds fly
into the garden.
How many birds are
there in all?
__+__=__
Ben found 5 flowers.
Then he found 4
more. How many
flowers did he find in
all?
__+__=__
Josh sees 4 clouds.
Then he sees 7 more
clouds. How many
clouds does he see
now?
__+__=__
Sara drew 8 stars.
Then she drew 7
more. How many
stars did Sara draw
in all?

25. Tomas has 7 toy trucks. His dad buys him 3
more trucks. How many trucks does Tomas
have now? Draw a picture to solve. Write an
equation. Then tell how you know you are
right.Tomas has 7 toy trucks. His dad buys him 3
more trucks. How many trucks does Tomas
have now? Draw a picture to solve. Write an
equation. Then tell how you know you are
right.Tomas has 7 toy trucks. His dad buys him 3
more trucks. How many trucks does Tomas
have now? Draw a picture to solve. Write an
equation. Then tell how you know you are
right.Tomas has 7 toy trucks. His dad buys him 3
more trucks. How many trucks does Tomas
have now? Draw a picture to solve. Write an
equation. Then tell how you know you are
right.Tomas has 7 toy trucks. His dad buys him 3
more trucks. How many trucks does Tomas
have now? Draw a picture to solve. Write an
equation. Then tell how you know you are
right.Tomas has 7 toy trucks. His dad buys him 3
more trucks. How many trucks does Tomas
have now? Draw a picture to solve. Write an
equation. Then tell how you know you are
Tomashas7toytrucks.Hisdadbuyshim3
moretrucks.HowmanytrucksdoesTomas
havenow?Drawapicturetosolve.Writean
equation.Thentellhowyouknowyouare
right.
Tomashas7toytrucks.Hisdadbuyshim3
moretrucks.HowmanytrucksdoesTomas
havenow?Drawapicturetosolve.Writean
equation.Thentellhowyouknowyouare
right.
Tomashas7toytrucks.Hisdadbuyshim3
moretrucks.HowmanytrucksdoesTomas
havenow?Drawapicturetosolve.Writean
equation.Thentellhowyouknowyouare
Topic 1.2 Math
Task

26. Math Topic One
Grade Two
Lesson 1.3

30. Whole Number
Part Part

31. Nine fish are in the lake. Five swim away.
How many fish are left? Draw a picture to
solve. Write an equation. Then tell how you
know you are right.
Nine fish are in the lake. Five swim away.
How many fish are left? Draw a picture to
solve. Write an equation. Then tell how you
know you are right.
Nine fish are in the lake. Five swim away.
How many fish are left? Draw a picture to
solve. Write an equation. Then tell how you
know you are right..
Nine fish are in the lake. Five swim away.
How many fish are left? Draw a picture to
solve. Write an equation. Then tell how you
know you are right.
Nine fish are in the lake. Five swim away.
How many fish are left? Draw a picture to
solve. Write an equation. Then tell how you
know you are right.
Nine fish are in the lake. Five swim away.
How many fish are left? Draw a picture to
solve. Write an equation. Then tell how you
know you are right.
Ninefishareinthelake.Fiveswimaway.
Howmanyfishareleft?Drawapictureto
solve.Writeanequation.Thentellhowyou
knowyouareright.
Ninefishareinthelake.Fiveswimaway.
Howmanyfishareleft?Drawapictureto
solve.Writeanequation.Thentellhowyou
knowyouareright.
Ninefishareinthelake.Fiveswimaway.
Howmanyfishareleft?Drawapictureto
solve.Writeanequation.Thentellhowyou
knowyouareright.
Topic 1.3 Math
Task

32. Math Topic One
Grade Two
Lesson 1.4

34. 12 seagulls are at the beach. 4 are
walking on the sand. The rest are flying.
How many seagulls are flying?
Nick finds 14 shells. He gives 9 shells to
Ella. How many shells does Nick have
left?
Sue has 10 stones. She puts 7 in the
water. How many stones does Sue have
now?
There are 10 beach balls. The wind
blows 4 of the balls away. How many
balls are left?
John sees 15 sand crabs. 8 hide in
holes in the sand. How many sand
crabs does John see now?
There are 11 birds swimming. 7 fly
away. How many birds are swimming
now?
Kara has 8 sand pails and 1 shovel.
She gives 3 pails to Mark. How many
pails does Kara have left?
10 children are playing at the beach. 4
children go home. How many children
are still playing at the beach?

35. 1.4 Stories about Separating Name _______________ Date ______________
Sue has 10 stones.
She puts 6 in the
water. How many
stones does Sue
have now?
There are 10 beach
balls. The wind
blows 3 of the balls
away. How many
balls are left?
12 seagulls are at
the beach. 3 are
walking on the sand.
The rest are flying.
How many seagulls
are flying?
10 children are
playing at the beach.
7 children go home.
How many children
are still playing at the
beach?
Kara has 8 sand
pails and 1 shovel.
She gives 2 pails to
Mark. How many
pails does Kara have
left?
____ - ____ = _____ ____ - ____ = _____
Nick finds 14 shells.
He gives 8 shells to
Ella. How many
shells does Nick
have left?
____ - ____ = _____ ____ - ____ = _____
John sees 15 sand
crabs. 7 hide in
holes in the sand.
How many sand
crabs does John see
now?
There are 11 birds
swimming. 8 fly
away. How many
birds are swimming
now?
____ - ____ = _____
____ - ____ = _____ ____ - ____ = _____
____ - ____ = _____

36. What’s
in the
Bag?
What’s
in the
Bag?
Put ____ cubes in the
bag.
Partner One reaches
into the bag and pulls
out “some” cubes.
Partner Two has to
figure out how many
cubes are still in the
bag. Both partners
write a number
equation to record what
Put ____ cubes in the
bag.
Partner One reaches
into the bag and pulls
out “some” cubes.
Partner Two has to
figure out how many
cubes are still in the
bag. Both partners
write a number
equation to record what
Teacher Notes:
Use simple lunch
bags or cutsie
bags to add these
labels to and
create a quick
and easy math
game.
Have kids add 10
cubes to work on
number pairs to
10. Have kids
add 20 cubes to
work on number
pairs to 20. This
game works best
with partners as
the math talk is
rich in content
about what they
are doing and
how they know
the answers.

37. “Math Talk”
I know there are ____ cubes in
the bag. _____ took out ____
cubes. I know there are _____
cubes left in the bag because
___ and ___ are a part of ____.
I can write a number equation
to go with this fact.

38. James has 12 rocks. He puts 7 rocks in
Maria’s garden. How many rocks does James
have left? Draw a picture to solve. Write an
equation. Then tell how you know you are
right.
Topic 1.4 Math
Task
James has 12 rocks. He puts 7 rocks in
Maria’s garden. How many rocks does James
have left? Draw a picture to solve. Write an
equation. Then tell how you know you are
right.James has 12 rocks. He puts 7 rocks in
Maria’s garden. How many rocks does James
have left? Draw a picture to solve. Write an
equation. Then tell how you know you are
right.James has 12 rocks. He puts 7 rocks in
Maria’s garden. How many rocks does James
have left? Draw a picture to solve. Write an
equation. Then tell how you know you are
right.James has 12 rocks. He puts 7 rocks in
Maria’s garden. How many rocks does James
have left? Draw a picture to solve. Write an
James has 12 rocks. He puts 7 rocks in
Maria’s garden. How many rocks does James
have left? Draw a picture to solve. Write an
equation. Then tell how you know you are
right.
Jameshas12rocks.Heputs7rocksin
Maria’sgarden.HowmanyrocksdoesJames
haveleft?Drawapicturetosolve.Writean
equation.Thentellhowyouknowyouare
right.
Jameshas12rocks.Heputs7rocksin
Maria’sgarden.HowmanyrocksdoesJames
haveleft?Drawapicturetosolve.Writean
equation.Thentellhowyouknowyouare
right.
Jameshas12rocks.Heputs7rocksin
Maria’sgarden.HowmanyrocksdoesJames
haveleft?Drawapicturetosolve.Writean
equation.Thentellhowyouknowyouare

39. Math Topic One
Grade Two
Lesson 1.5

42. 7 brown puppies and 12 black puppies
are playing in a park. How many more
black puppies are there than brown
puppies?
9 brown puppies and 9 black puppies
are playing in the park. How many more
black puppies are there than brown
puppies?
Anna has 7 stickers. Mark has 4
stickers. How many more stickers does
Anna have than Mark?
Joy has 10 pets. Jeff has 8 pets. How
many fewer pets does Jeff have than
Joy?
Alan has 9 dog dishes. Jack has 5 dog
dishes. How many more dog dishes
does Alan have than Jack?
Maria makes 12 cat toys. Lee makes 6
cat toys. How many fewer cat toys does
Lee make than Maria?
Sarah has 9 fish, 2 birds, and 5
hamsters. How many fewer hamsters
than fish does she have?
Mike has 12 books about cats. Zach
has 4 books about cats. How many
more books does Mike have than Zach?

43. How Many More ?
A great Comparison Activity
http://mathcoachscorner.blogspot.co
m/2012/11/how-many-more.html

44. How many
more?
How many
more?
How many
more?
How many
more?
©2012 Donna Boucher
How many
more?
How many
more?
How many
more?
How many
more?
©2012 Donna Boucher
How many
more?
How many
more?
How many
more?
How many
more?
©2012 Donna Boucher
How many
more?
How many
more?
How many
more?
How many
more?
©2012 Donna Boucher

45. What is t he
difference?
What is t he
difference?
What is t he
difference?
What is t he
difference?
©2012 Donna Boucher
What is t he
difference?
What is t he
difference?
What is t he
difference?
What is t he
difference?
©2012 Donna Boucher
What is t he
difference?
What is t he
difference?
What is t he
difference?
What is t he
difference?
©2012 Donna Boucher
What is t he
difference?
What is t he
difference?
What is t he
difference?
What is t he
difference?
©2012 Donna Boucher

46. Math Topic One
Grade Two
Lesson 1.6

49. _____ + ______ = ______
_____ + ______ = ______
_____ - ______ = ______
_____ - ______ = ______
Mat h Fact Fam i l i es
Addition and Subtraction factsthat have the same numbersare
related. Math Fact Familiesuse all the same numbers. I can write
a fact family if I knowtwo of the numbers. Can you?

51. ++--
+=
+=
-=
-=
FactFamilyTemplatetkawas@mathwire.com

53. I CAN add and
subtract numbers
within 25
using
Math Fact
Families
to help me.

54. We learned how to write a
subtraction fact that is
related to an addition fact.
9
3 + 6 = 9
9 - 6 = 3

55. Today we’ll learn how to
write all the related addition
and subtraction facts for a
whole and two parts.
9 3 + 6 = 9
6 + 3 = 9
9 - 6 = 3
9 - 3 = 6

56. What do you call a group of
people who are related?
a
family

57. What are related facts?
Addition and Subtraction facts
that have the same numbers.
4 + 9 = 13
13 – 9 = 4

58. What do you think you
might call a group of
related facts?
a
fact
family
Tell your neighbor what a
fact family is…
13
7 6

59. _____ + ______ =
______
_____ + ______ =
______
_____ - ______ =
______
I can write the fact families for the
whole to part.
9

60. _____ + ______ =
______
_____ + ______ =
______
_____ - ______ =
______
I can write the fact families for the
whole to part.
10

61. _____ + ______ =
______
_____ + ______ =
______
_____ - ______ =
______
I can write the fact families for the
whole to part.
13

62. What relationship do you
see between. . .
3 + 7
and
10 – 7

63. Can you solve my riddle? You can use
your math fact family knowledge to help
you!
4
7

64. Can you solve my riddle? You can use
your math fact family knowledge to help
you!
6
11

65. Can you solve my riddle? You can use your math
fact family knowledge to help you!
5
9

66. I can add and subtract
within 20.
Knowing how to use math fact
families will help me become
better at math!

67. Lulu has 6 blue eggs in her nest. CiCi has 4 spotted
eggs in her nest. How many more blue eggs than
spotted eggs are there? Draw a picture to solve.
Write an equation. Then tell how you know you are
right.
Topic 1.5 Math
Task
Lulu has 6 blue eggs in her nest. CiCi has 4 spotted
eggs in her nest. How many more blue eggs than
spotted eggs are there? Draw a picture to solve.
Write an equation. Then tell how you know you are
right.Lulu has 6 blue eggs in her nest. CiCi has 4 spotted
eggs in her nest. How many more blue eggs than
spotted eggs are there? Draw a picture to solve.
Write an equation. Then tell how you know you are
right.
Lulu has 6 blue eggs in her nest. CiCi has 4 spotted
eggs in her nest. How many more blue eggs than
spotted eggs are there? Draw a picture to solve.
Write an equation. Then tell how you know you are
Lulu has 6 blue eggs in her nest. CiCi has 4 spotted
eggs in her nest. How many more blue eggs than
spotted eggs are there? Draw a picture to solve.
Write an equation. Then tell how you know you are
right.
Lulu has 6 blue eggs in her nest. CiCi has 4 spotted
eggs in her nest. How many more blue eggs than
spotted eggs are there? Draw a picture to solve.
Write an equation. Then tell how you know you are
right.
Luluhas6blueeggsinhernest.CiCihas4spotted
eggsinhernest.Howmanymoreblueeggsthan
spottedeggsarethere?Drawapicturetosolve.
Writeanequation.Thentellhowyouknowyouare
right.
Luluhas6blueeggsinhernest.CiCihas4spotted
eggsinhernest.Howmanymoreblueeggsthan
spottedeggsarethere?Drawapicturetosolve.
Writeanequation.Thentellhowyouknowyouare
right.
Luluhas6blueeggsinhernest.CiCihas4spotted
eggsinhernest.Howmanymoreblueeggsthan
spottedeggsarethere?Drawapicturetosolve.
Writeanequation.Thentellhowyouknowyouare

69. This lesson design is only a
suggestion. Please make changes
to fit the needs of your students.
You can find more resources and
ideas on the Second Grade CCSSM
Resource blog at
http://secondgradeccssmresources.
blogspot.com/
HSamuelson 2013 **revised
2014**
hsamuelson2013@gmail.com