Section References

Lesson 26 
Addition with 
Hidden Counters

Lesson 27 
Adding On 
CHECKPOINT

Lesson 28
The Order Property 
of Addition

Lesson 29 
Identifying Missing 
Addends

Lesson 30 
Subtraction with 
Hidden Counters

Lesson 31
Addition and
Subtraction-Hidden

Lesson 32 
Adding On-Counting 
Back

Lesson 33 
Addition and 
Subtraction

Lesson 34 
Addition and Subtraction 
(Horizontal)

Lesson 35
Addition and Subtraction
(Vertical)

Lesson 36 
Practicing Addition 
and Subtraction

Lesson 37 
Adding and Subtracting
on a Number Line

Lesson 38
Adding and Subtracting
with Number Strips

Lesson 47 
Adding-Finding Tens

Lesson 48
"Statue" Addition

Lesson 49
"Statue" Subtraction

Lesson 50 
Mental Addition

Lesson 51
Mental Subtraction

Lesson 53
Mental Math

Lesson 58 
Adding-Doubles

Lesson 59 
Adding Fives

Lesson 61 
Adding-Finding Tens

Lesson 62 
Addition Facts

Lesson 63 
The Addition Table

Lesson 64 
Skip Counting-by Twos

Lesson 65 
Finding Missing Addends

Lesson 66 
Missing Addends 
CHECKPOINT

Lesson 76 
Adding and Subtracting 
on a Number Line

Lesson 93
Adding with Number 0-40

Lesson 119
Adding and Subtracting 
Multiples

Lesson 128
Missing Addends

Lesson 130 
Adding 0, 1, 2, and 10

Lesson 131 
Adding 8 and 9

Lesson 139 
Repeated Addition

Lesson 140 
Using Arrays and 
Repeated Addition

Lesson 143 
Adding and Subtracting
Money

Software

Balancing Bear, Sunburst, 
1993 floppy apple II,
mac, MS DOS

Mighty Math Carnival 
Countdown, Edmark 
Corporation, 1996
cd mac/windows

Number Meanings and 
Countings, Tenth Planet,
1996
cd mac/windows

Specific Textbook Web Sites

http://www.glencoe.com/
sec/math/prealg/mathnet/

http://www.eduplace.com/
links/

http://www.eduplace.com/

http://www.hmco.com/
college/mathematics/
index.html

http://www.mcdougallittell
.com/

http://www.hmco.com/

http://www.SRA-4KIDS.com/

General Math 
Reference Sites

http://www.learner.org/
sami/view-category.php3?
category=math

http://www.score.k12.ca.us/

http://henson.austin.
apple.com/edres/
curric.shtml

http://school.discovery.com/
schrockguide/index.html

http://www.EDsOasis.org/

http://www.math.com/

http://www.nea.org/grants/
free.html

http://www.wcom.com
/marcopolo/

http://www.udel.edu/sine/

http://dewey.chs.chico.
k12.ca.us/math.html

Free Stuff

http://www.nea.org/
grants/free.html

State/National Math 
Ed Organizations

http://www.nctm.org/

http://www.cde.ca.gov/

Calif. Dept. of Ed. Standards, Assessment, Ed. Reference.

Calculator Reference Site

http://www.ti.com/
calc/docs/calchome.html

1.) Students use a numbered die 1-5 and an operations die with various manipulatives. Students partner up. They start with 10 of their chosen objects and then one student rolls the operation die and the other rolls the numbered die. They add or subtract the number of objects as indicated by the dice. Students record their actions on paper with equations and pictures.

2.) Students play 'Number Tile Line Up' in partners. Each student takes 10 tiles from a faced down set of tiles 1-20. Student who draws 10 tile puts it down to start the line-up. In turn, each student tries to add a tile to the line-up. Only number tiles that come directly before or after those already played can be added. A student with no tile to add must pass. The game is over when all number tiles are lined up in order.

1.) Teacher may informally assess as each child has the opportunity to add or pop balloons. 2.) The following activities are assessed on an individual basis by the teacher/ helper: