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MATHEMATICS
Essentials
Week
by
Week
WEEK
9
Seeing Math
Using an 8.5 by 11 sheet of paper, ask
children to predict how many sections
you will have when folded in half. How
many will we have when folded again?
How many will we have on the third
fold?Is there a pattern in these numbers?
Investigations
Given this number, what number would you add to
get the sum of 15?
3 + ___ 11 + ___
5 + ___ 15 + ___
8 + ___ 7 + ___
1 + ___ 9 + ___
4 + ___ 14 + ___
Arrange your numbers in a systematic way.
(For example, chart, table, pattern, etc.)
1
2
3
4
Lets Write
Write a story about what you can do in
one minute.
$ $ $ $
Show four ways to make 25
Quarter Dime Nickel Penny
1.
2.
3.
4.
What Do You Think?
Is 11 an odd or an even number? How
do you know? Draw a picture or write
about your answer.
Is 24 an odd or an even number? How
do you know? Draw a picture or write
about your answer.
Patterns, Patterns, Patterns
Juan eats one piece of candy on Monday, two pieces
on Tuesday, and four pieces on Wednesday. How
many pieces will he eat on Friday?
(Review from Grade 1)
(1.04)
(5.01)
(1.01a)
(1.06)
(5.01)
.
42
Double Six Domino Addition
Materials: Use one set of double-six dominoes.
Directions: Place dominoes on the workmat so the sums are correct. Then record the dots to
show how you placed the dominoes. Dominoes may be used only once.
(1.05)
10 2 9 11 7
12 0 6 10 3
3 8 4 1 5
10 9 7 12 6
43
Keeping Skills Sharp
Solve this!
1 -
=
+ +
2
3
4
1. 70 2. 65
- 10 - 10
3. 52 - 10 = _____ 4. 40 - 10 = _____
5. Label this pattern using letters of the alphabet.
L L L
6. Is this shape symmetrical?
7. 8 tens, 4 hundreds, 3 >8. Lynn hopped 40 times before she stopped.
Paula hopped 36 times. How many more
times did Lynn hop than Paula?
If four children are playing ball together, how many legs would be running
around?
If there were seven children, how many legs would there be?
Make up a story with another number of children.
(1.05)
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To the Teacher
WEEK
Mental Math Keeping Skills Sharp
Directions to Students: Number your paper from
1 to 10. Write your answers as the questions are called
out. Each question will be repeated only once.
9
Lets Write:
Teachers would need to show children how long one minute actually is before beginning this
writing activity.
Seeing Mathematics:
When folding the paper, you will need to stop and show the sections to the children. The first
fold will show two sections. The second fold will show four and the third fold will show eight.
The pattern is that the number of sections doubles.
Money, Money, Money:
Children are explaining the use of an organized list while making money combinations. There
are many ways to make 25 and each child could find four. These could then be combined into a
class chart.
Assessment:
Week nine marks the end of a grading period for most teachers. In reflecting on your students
work and the need for assessing students understanding on concepts, remember to look at the
Competency Goals and Objectives for activities and information to help in assessment and
reteaching. Mathematics assessment should be focused on what children know and can do as
well as what they need to know. Use this opportunity to collect summative information from the
first quarter of the year to help you in planning further instruction. Your instruction should fit the
needs of your children.
1. 10 + 4 5. 4 tens
2. 4 + 2 6. 8 tens
3. 7 + 3 7. 1 ten
4. 5 + 3 8. 5 tens
9. 2 tens
10. 5 tens
60 AABBC
55 Yes
42 483
30 4
Write the sum What number is
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MATHEMATICS
Essentials
Week
by
Week
WEEK
1 0
Seeing Math
Investigations
How many pockets do you have?
Ask students to put a Unifix cube in each pocket.
Divide the students into groups of four. Have the
students snap their own cubes into towers and
compare the information. The students will then
change groups and compare in a new group. Then
group all cubes into groups of 10 to find the total
number of pockets. Have the students tell what
they learned from this activity. What is the most
popular number of pockets?
1
2
3
4
Lets Write
.
$ $ $ $
I have four coins. The total amount is 25.
What coins do I have?
I have three coins. They are all different.
The total amount is 36. What coins do I
have?
What Do You Think?
Tess has written two numbers on her paper. If she
adds the two numbers she gets
800. If she subtracts the two
numbers she gets 200.
What are the two numbers
Tess has written on her
paper? What strategy did you use
to find the answer?
Patterns, Patterns, Patterns
How many beads will be in the next strand? What is
the rule for this pattern? A
B C
D
(1.01c, f )
(1.01a)
Count the number of pockets you are wearing
today. Draw a picture of you wearing ten more
pockets than you have today. Write about what
you would do with all those pockets.
(1.01a)
Draw the line of symmetry for each of
these shapes.
(3.03a)
Cut pictures of
symmetrical shapes
from magazines to
display.
(1.05)
(5.01)
46
Watch Out Addition
(1.05)
9

7 12 9 4 6
Materials: Game board, transparent markers of two different
colors, two number cubes
Directions: Roll the two number cubes and cover the sum. If an
opponents marker is already on it you may bump it off and put
yours there. The winner is the first person to get six markers in a
row.
7

2 10 9 12 11
4

7 8 3 11 8
8

2 5 11 3 12
7

4 9 2 7 10
6 10 5 10 6 5
47
Keeping Skills Sharp
Solve this!
1 -
=
+ +
2
3
4
1. 9 + 8 = ____ 2. 7 + 6 = ___
3. 17 + 10 = ____ 4. 16 - 10 = ____
5. Fill in the missing numbers.
73 75 76
86
6. List three letters of the alphabet that are
symmetrical.
7. 8 hundreds and 6 >8. There are five elephants in the circus.
Each elephant in the circus has four legs.
How many legs in all?
Lynn had 14 stickers.
She gave five stickers to her sister.
She gave four stickers to her brother.
How many stickers were left?
Explain how you solved the problem.
(1.05)
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To the Teacher
WEEK
Mental Math Keeping Skills Sharp
Directions to Students: Number your paper from
1 to 10. Write your answers as the questions are called
out. Each question will be repeated only once.
1 0
17 74, 77
84, 87
13 any three
A, C, D, E, H, I, K, M,
O, T, U, V, W, X, Y
27 806
6 20
This week has a focus on pockets. You may want to share some pocket related literature such as:
Katy No -Pocket by Emmy Payne
A Pocket for Corduroy by Don Freeman
A Pocketful of Crickets by Rebecca Caudill
Investigations:
Save this information to use to compare when this activity reappears in week 23. This will help
children see how to collect data over a period of time. You may want to repeat this activity four or
more times to help children with this objective.
Money, Money, Money:
Children will need actual coins to help make this activity more concrete.
What Do You Think?
Guess and check will probably be the strategy used to solve this problem. Let children share their
strategies. Did anyone use another strategy? Which numbers did you try when you were
guessing? Why?
Seeing Mathematics:
What number is: How many tens are in:
1. 7 tens 6. 50
2. 3 tens 7. 48
3. 6 tens 8. 89
4. 9 tens 9. 30
5. 2 tens 10. 100
The circle has an
indefinite number
of lines of
symmetry. One is
shown.
Two possible
answers are
shown for the
oval.
49
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MATHEMATICS
Essentials
Week
by
Week
WEEK
1 1
Seeing Math
A frog sat on a number line. It was on
the number 18. It made two equal hops
and landed at 0.
Where did it land first?
Draw a picture to show the number and
the two hops.
Investigations
1
2
3
4
Lets Write
Write and draw what you know about symmetry.
$ $ $ $
Annie wants to buy a doll for 76.
She pays with eight dimes. How much
change does she get back?
What Do You Think?
(3.03a)
(1.05)
(1.01a)
Create a symmetrical design with more than
six but fewer than 21 pattern blocks.
Using calculators, determine the value of the
design if hexagons are worth 8, trapezoids
are worth 5, squares are worth 4,
parallelograms (blue and tan) are worth 6
and triangles are worth 3. How could you
increase or decrease the value of your design?
(3.03a)
The target has four circles with possible
scores of 3, 4, 6, and 10. Jo shot three arrows.
All of them hit the target.
Find all of the possible
scores Jo might have
scored.
Explain how you figured
out the possible scores.

(1.05)
Find the next three figures in this pattern.
Patterns, Patterns, Patterns
(5.01)

50
(1.06)
Numberville
SCHOOL
Odd Street Even Street
Materials: Gameboard, 2 markers, dice or draw cards
Extension: Play with two dice and add the numbers or use draw cards with any appropriate set
of numbers.
One player follows Odd Street and the other follows Even Street. Take turns rolling a die. If
the number is odd, the player taking the Odd Street path moves one square. If the roll is even,
the person going on Even Street moves one space. The first player home is the winner.
51
Keeping Skills Sharp
Solve this!
1 -
=
+ +
2
3
4
(1.06)
1. 9 + ____ = 12 2. 6 + 4 + 3 = ____
3. 8 + 2 + 4 = ____ 4. 7 + 6 + 3 = ____
5. Whats missing?
6. Which shape would this be if it were folded to
make a 3-d figure?
Using your one-inch tiles, can you make a rectangle with 8 tiles? 12
tiles? 9 tiles? 15 tiles? 10 tiles? 18 tiles?
Show your answers here and on the back by tracing around the tiles.
7. 9 hundreds and 7 tens = ___________
8. Today is Tuesday, January 5th. What will Saturdays date be?
27 28 29
38 39 40
(3.01)
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To the Teacher
WEEK
Mental Math Keeping Skills Sharp
Directions to Students: Number your paper from
1 to 10. Write your answers as the questions are called
out. Each question will be repeated only once.
1 1
Investigations:
Second graders should record their work. Tracing the symmetrical design may be difficult for
some children. They could record with words such as, My design had four hexagons and two
triangles. The value of my design is 8 + 8 + 8 + 8 + 3 + 3 = 38. Adding money on a
calculator needs to be demonstrated to the students.
Solve This:
If color tiles are available in the classroom they work great for this activity if not, duplicate the
page of one-inch squares in the Blackline Master section and have children cut out 15 to use to
make the rectangles. Children can trace around their tiles to record or you way want to supply
enough of the one-inch tile paper for the children to cut out their own rectangles. Discuss strate-
gies used to solve the problem.
3 30, 37
13 cube
14 970
16 Jan. 9
How many pennies do you need to equal: Write the sum:
1. one nickel 6. 7 + 2
2. one dime 7. 6 + 4
3. one quarter 8. 10 + 5
4. one dollar 9. 3 + 5
5. two dimes 10. 4 + 5
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MATHEMATICS
Essentials
Week
by
Week
WEEK
1 2
Investigations
Vernon and Rebecca each have a cat. Rebeccas cat
loves to eat. When Vernons cat eats one bowl of
food, Rebeccas cat eats three. When Vernons has
eaten two bowls, Rebeccas cat has eaten six. When
Vernons cat has eaten five bowls of food, how many
will Rebeccas cat have eaten?
Extension: Suppose Vernons cat was the hungrier
one and eats two bowls of food each time Rebeccas
cat eats one bowl. In one week Rebeccas cat eats
seven bowls. How many does Vernons cat eat?
1
2
3
4
Lets Write
If you were invited to the
kindergarten class to explain what a
pattern is, what would you say?
$ $ $ $
Snacks at school cost 30. How
many different ways could you pay the
lunchroom worker for your snack and have
the exact amount?
How can you show your answers? With a
partner, make some kind of picture or
display.
What Do You Think?
Carlos bought a piata. At the store he
saw 16 legs on piatas. They were
shaped like bulls and like chickens.
How many of each kind of animal could
he have seen?
How many answers can you find?
Patterns, Patterns, Patterns
.
(5.01)
(1.05)
(3.01)
(1.01a)
(1.05)
What is the rule?
2:00, 2:30, 3:00, ______, ______, ______
(5.01)
Seeing Math
Look at the paper your
teacher shows you.
Draw what you think
the paper will look like
after the hole is
punched.
(3.02)
54
Daytona 500
Materials: Game board, a die, set of cards,and calculators.
Directions: Shuffle cards and turn them face down. Take turns drawing a card from the
stack and rolling a die. If the number on the die is even, use the calculator to add your
number on the card. If the number on the die is odd, use your calculator to subtract your
number. Keep a total on your calculator. The first player to get 500 or more is the winner
of the Daytona 500.
Note: Talk about what numbers like -26 mean when they appear on your display window.
A number line might help!
(1.05, 1.06)
5 0 0
55
15 44 34 16
40 33 20 53
24 37 28 47
12 45 8 30
Daytona 500 Cards
56
29 42 39 17
45 27 18 51
25 32 38 57
54 72 36 21
Daytona 500 Cards
57
Keeping Skills Sharp
Solve this!
1 -
=
+ +
2
3
4
1. 8 2. 6 3. 5
3 2 3
+ 3 + 5 + 4
4. 27 - 10 = _____
5. Whats missing?
6. What shape will this be when it is cut out
and folded?
7. Is this figure symmetrical?
8. Mary, George and Issy sold tickets for the
raffle. Mary sold 35. George sold 91. Issy sold
the least. How many could Issy have sold?
Maegan wrote a number on her paper and gave these clues:
It is a 2-digit number
Its digits add up to 13.
It has more tens than ones.
There are three answers that fit these clues. With your partner find the
three numbers Maegan could have written on her paper.
(1.01f )
72 73 74
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To the Teacher
WEEK
Mental Math Keeping Skills Sharp
Directions to Students: Number your paper from
1 to 10. Write your answers as the questions are called
out. Each question will be repeated only once.
Investigations:
After discussing solutions and various strategies the children have used, show them how to set up
a chart such as:
Vernons cat 1 2 3 4 5
Rebeccas cat 3 6
Money, Money, Money:
Help children develop an organized list as a possible way to keep up with the many ways to
make 30. One possibility would be:
Ways 25 10 5 1
1
2
3
What Do You Think?
Children may need plastic animals or pictures of horses and chickens in order to solve this
problem. Encouraging children to draw pictures will also help.
Seeing Math
Use an 8
1
/
2
by 11 sheet of paper and fold it in a hamburger fold.
Have the children draw their prediction of what will happen when a hole is punched in the folded
paper. Unfold and let them see the exact position, then discuss why.
Fold and punch again and have the children add the new hole.
This can be repeated a couple of times.
1 2
14 64, 83, 75
13 cone
12 yes
17 any number
less than 35
Write the difference: How many 10s in:
1. 10 - 5 6. 13
2. 5 - 0 7. yes
3. 7 - 3 8. 70
4. 8 - 2 9. 58
5. 6 -1 10. 37