Section References 

Lesson 43 
Estimating Length 

Lesson 36  
Place Value - Base Ten 

Lesson 37  
Place Value -Using Money 

Lesson 38  
Counting by Tens 

Lesson 50  
Adding Two-Digit Numbers 

Lesson 51  
Two-Digit Numbers 

Lesson 52  
Adding and Renaming 

Lesson 53  
Two-Digit Addition 

Lesson 57  
Renaming Tens as Ones 

Lesson 58  
Subtracting Multiples 
of Ten 

Lesson 59 
Subtracting Two-Digit  
Numbers From Multiples  
of Ten 

Lesson 60  
Two-Digit Subtraction 

Lesson 61  
Subtracting Two-Digit  
Numbers 

Lesson 62 
Practicing Two-Digit 
Subtraction 

Lesson 63  
Applying Subtraction 

Lesson 113  
Round to Ten 

Lesson 133 
Grouping by Tens 

Lesson 151  
Approximating Answers 

Lesson 152  
Counting by 100s and 1000s 

Software 

Hands-On Math I and II, 
Ventura Educational  
Systems, 1995 
floppy mac/windows 

Might math Zoo Zillions, 
Edmark Corporation, 1996 
cd mac/windows 

CA Exit Exam Web Site 
http:/www.chspe.com/ 
download.html 

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 will group the objects in a bag according to size, estimate and record the lengths, measure the objects, and then check their measurements with a partner. 

2.) Students will estimate to the nearest 10, solve the estimated problem, then calculate exactly: 

386 + 413 

972 - 517 

749 - 244 

3.) Students will estimate to the nearest 100, solve the estimated problem, then calculate exactly:  

386 + 413 

972 - 517 

749 - 244 

4.) Students will estimate to the nearest 1000, solve the estimated problem, then calculate exactly: 

3456 - 2672 

8732 - 7439 

1099 + 2497 

4501 + 3502 

1.) Given a sheet with lines of various lengths, students will estimate each length to the nearest inch (1" to 12").  

2.) Given a set of numbers, students will estimate to the nearest 10, 100, and 1000, solve the estimated problems, then calculate the exact answers. 

3.) Given word problems that involve numbers through 1000, students will estimate, then calculate the solutions.