_____________________________________
diamond Library of Math Forum Problems

Math Fundamentals Algebra | Discrete Math
Pre-algebra Geometry Trig/Calculus
_____________________________________
(membership required) || Become a Member || Learn about Membership
-____________________________________

TOPICS
space

This page:
  factors, primes checkmark



About Levels
of Difficulty

Algebraic
Reasoning

Arithmetic
   estimation
   factors, factoring,
     & prime numbers
   fractions, decimals
     & percents
   measurement
   pi
   ratio, proportion

Discrete Math

Geometry
   area
   circumference
     & perimeter
   volume

Logic
Patterns
Probability
Statistics

Browse all
Elementary
Problems

Elementary
Home

About the
PoW Library


Teacher Support
Page Available


Problem Accepts
Submissions
Elementary: Factors, Prime Numbers

Students in grades 3-5 study classes of numbers and investigate their properties, learning that different kinds of numbers have particular characteristics - for example, that prime numbers have only two factors, and that square numbers have an odd number of factors. As they do multiplication problems, students learn factors and what their product represents - how, in area models, a product is related to its factors.

Problems appropriate for elementary students in which factors, factoring, or prime numbers play an important part are listed below. These problems address the NCTM Number and Operations Standard for Grades 3-5 expectation that students should understand numbers, ways of representing numbers, relationships among numbers, and number systems, and should be able to describe classes of numbers according to characteristics such as the nature of their factors.

To find relevant sites on the Web, browse and search Prime Numbers in our Internet Mathematics Library; to find elementary sites, go to the bottom of the page, set the searcher for late elementary level (3-5), and press the Search button. See also About Numbers in the Dr. Math archives.

Access to these problems requires a Membership.

Anderson's Pumpkin Patch - Teaching the Young Learner Group and Lisa Lavelle
teacher support active problem Math Fundamentals, difficulty level 2. How many students are there in Ms. Juncos's fourth grade class? ... more>>

Birds in Trees - Steve Maurer
teacher support active problem Elementary, difficulty level 3. Can you figure out the number of trees in the courtyard? ... more>>

Birthday Beach Bash - Lisa Lavelle
teacher support active problem Math Fundamentals, difficulty level 3. Help determine how many balloons were needed for party favors at the end of this celebration. ... more>>

Calculator Double Vision - Lisa Lavelle
Elementary, difficulty level 2. Enter a 3-digit number twice on a calculator and use division to get the original number. ... more>>

The Chocolate Allergy Revelation - Antiquity (Steve Earth)
teacher support active problem Math Fundamentals, difficulty level 5. Use meta-reasoning to deduce the ages of three people based on a product, a sum, and a seemingly irrelevant third piece of information. ... more>>

Five Digits of Fun - Lisa Lavelle
teacher support active problem Math Fundamentals, difficulty level 4. Find a five-digit number based on these clues. ... more>>

It's an open and shut case! Or is it? - Lisa Lavelle
Elementary, difficulty level 3. A Razzle Dazzle Elementary School locker problem. ... more>>

Jellybean Fractions - Lisa Lavelle
teacher support active problem Elementary, difficulty level 2. Determine good and bad choices in playing the Jellybean Fractions Game. ... more>>

Jellybean Rectangles - Lisa Lavelle
teacher support active problem Math Fundamentals, difficulty level 3. Have fun figuring out strategy in the Jellybean Rectangle game. ... more>>

Peanut Butter and Jelly - Lisa Lavelle
teacher support active problem Math Fundamentals, difficulty level 3. How many sandwiches can we make before using up a package of bread and jars of jelly and peanut butter at the same time? ... more>>

Puzzling Puzzle Pieces - Lisa Lavelle
teacher support active problem Math Fundamentals, difficulty level 2. Explore the ways 108 puzzle pieces can be arranged. ... more>>

Rabbit's Run - Lisa Lavelle
teacher support active problem Math Fundamentals, difficulty level 1. Help Regina develop options for building her rabbit's run. ... more>>

Summer Shoe Leftovers - Teaching the Young Learner Group
teacher support active problem Math Fundamentals, difficulty level 4. Determine which of the leftover shoes might satisfy three shoppers' needs. ... more>>

A Very Special Number - Lisa Lavelle
Elementary, difficulty level 2. Find a number with some interesting divisibility properties - can you put them all together? ... more>>

Page:  1


[Privacy Policy] [Terms of Use]

_____________________________________
Home || The Math Library || Quick Reference || Search || Help 
_____________________________________

© 1994-2008 Drexel University. All rights reserved.
http://mathforum.org/
 The Math Forum is a research and educational enterprise of the Drexel School of Education.The Math Forum is a research and educational enterprise of the Drexel School of Education.