Grade 3 
Mathematics 
Standard 1 
(MATHEMATICAL REASONING)

Students make decisions about how to approach problems.

 

Resources
Lesson Plans
Assessments

SRA Math Explorations  
and Applications,  
Willoughby, 1999,  
SRA McGraw-Hill 

Section References 

Lesson 6  
Reviewing Basic Facts 

Lesson 28  
Applications: Four-Digit  
Addition and Subtraction 

Lesson 30  
Race the Calculator 

Lesson 33  
Choosing Reasonable 
Answers 

Lesson 34  
Approximating Sums  
and Differences 

Lesson 35  
Add to Find the  
Perimeter 

Lesson 36 
Practice with 
Approximating Sums 

(CHECKPOINT) 

Lesson 37 
Telling Time 

Lesson 38  
Practice Telling time 

(CHECKPOINT) 

Lesson 40  
Extend Your Thinking 

Lesson 41  
Approximating the Area 

Lesson 42  
Finding the Area 

Lesson 45  
Using Information in 
Displays 

Lesson 46  
Applying Multiplication: 
Area 

Lesson 47  
Estimating Products 

Lesson 50  
The Order Property of  
Multiplication 

Lesson 54 
Using Mental Math 
to Multiply 

Lesson 67  
Practice with Missing  
Factors and Division 

Lesson 71  
Choosing the Correct 
Operation  

(CHECKPOINT) 

Lesson 74  
Solving Equations 
with Variables 

Lesson 78  
Extend Your Thinking 

Lesson 79  
Reading Pictographs 

Lesson 80  
Reading Bar Graphs 

Lesson 81  
Reading Line Graphs 

Lesson 83  
Reading a Thermometer 

Lesson 84 
Making Line Graphs 

Lesson 88  
Estimate and Measure  
Customary Lengths 

Lesson 90  
Making Charts and  
Graphs 

Lesson 95 
Conversions: Meters and  
Centimeters  

(CHECKPOINT) 

Lesson 96  
Dollars and Cents 

Lesson 103  
Organizing Data 

Lesson 104  
Applied Addition and  
Subtraction of Decimals 

Lesson 122  
Making Predictions 

Lesson 123  
Predicting the Outcome 

Lesson 124  
Probability and Predictions 

Lesson 126  
Reading Scale Drawings 

Lesson 134  
Area 

Lesson 135  
Applying Multiplication 
Skills 

Lesson 143  
Exploring Exponents 

Lesson 148  
Approximating  
Multiplication 

Lesson 149  
Approximating  
Answers 

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 



Previously Published Data 

Students keep a mathematics Journal where they include strategies for solving different types of problems 

1.) Give students complex problems written on pages they may mark on and keep. For each problem, students: write the question being posed for solution; underline important information; lightly pencil out irrelevant information; and indicate what strategies will be used to solve it. If they consider the numbers involved too large, they will try the problem with simpler numbers to get an estimation of it. For example: The container is 57.53 feet long by 42.7 feet wide by 13.92 feet deep. What is its volume? Making it simpler, they could call it 60 by 40 by 15, much simpler numbers. The estimate is about 36,000 square feet which the student should expect to be more than the actual number since two of the three numbers were rounded up. The actual answer is 34,194.911 square feet. 



Previously Published Data 

1.) Students can clearly state the evidence for their conclusions. They will write a rationale for their solutions including one or more of the following supportive evidence using a graph, table, or drawing; indication of steps taken to solve the problem; or narrative clearly explaining steps and reasonableness of their answer.