Math Topics

Use math topic words to find web sites with lesson plans and activities.

Numbers

1. Math fundamentals problem of the week
   Featured in ENC Focus   ENC Digital Dozen Site  
   Date: 2003 Grade(s): 3 - 5 Cost: Free ENC#: 026886
   This Internet site, developed by the Math Forum, features nonroutine problems for students working in the content areas of numbers, operations, and measurement, as well as introductory geometry, data, and probability. The problems are designed to help elementary students learn to problem-solve and communicate mathematically.
   (For more details, see ENC Record.)
   
   
2. Count us in
   ENC Digital Dozen Site  
   Date: 2004 Grade(s): Pre-K - 1 Cost: Free ENC#: 029017
   This web site provides 15 games for young children to practice counting, sorting, and ordering. Some of the games have a defined goal; others let players explore free-form.
   (For more details, see ENC Record.)
   
   
3. At home with math: ten math activities for parents and kids
   ENC Digital Dozen Site  
   Date: 2001 Grade(s): K - 6 Cost: Free ENC#: 029427
   This web site provides ten math activities that parents can do with their children in the course of everyday activities. One idea, for example, is to have children estimate the number of items in a cluttered area, then count them as they pick them up and put them away in order to see how accurate the estimate was.
   (For more details, see ENC Record.)
   
   
4. Numbertime
   Featured in ENC Focus   ENC Digital Dozen Site  
   Date: 2001 Grade(s): Pre-K - 2 Cost: Free ENC#: 020665
   This Internet site, developed by the British Broadcasting Corporation (BBC), uses interactive animation to help children in grades preK through 2 practice number basics. The site contains online games for children, printable work sheets, and songs as well as information for parents and teachers.
   (For more details, see ENC Record.)
   
   
5. Famous problems in the history of mathematics: a Math Forum Project
   Featured in ENC Focus   ENC Digital Dozen Site  
   Date: 1998 Grade(s): 6 - Post-Sec. Cost: Free ENC#: 013284
   This Internet site, designed for grades 6 to post secondary, explores the history and culture surrounding certain famous mathematics problems and their solutions. Problems include the Bridges of Konigsburg, the value of Pi, and famous paradoxes.
   (For more details, see ENC Record.)
   
   
6. Pascal's triangle
   ENC Digital Dozen Site  
   Date: 1998 Grade(s): K - 12 Cost: Free ENC#: 012432
   This World Wide Web (WWW) site offers lessons guiding investigations of Pascal's triangle and its number patterns for elementary, intermediate, and advanced math students. Each level contains appropriate lessons for discovery activities about the triangle and one or more activities investigating numerical aspects of the triangle.
   (For more details, see ENC Record.)
   
   
7. Base ten block activities
   ENC Digital Dozen Site  
   Date: 1998 Grade(s): 1 - 4 Cost: Free ENC#: 016484
   This Internet page, developed by a mathematics teacher educator, features a five part activity looking at addition, subtraction, multiplication, and division of whole numbers from a geometric, hands-on algorithmic perspective using a Base Ten Block Applet. This material aims to link the whole number algorithms to algebra.
   (For more details, see ENC Record.)
   
   
8. Jumpstart grade school
   ENC Digital Dozen Site  
   Date: 1996 Grade(s): Pre-K - 2 Cost: Free ENC#: 000423
   This World Wide Web (WWW) site has games for kids, sample activities from Knowledge Adventure products, a three dimensional Scavenger Hunt, and a free Reference Library with an encyclopedia, photographs, and much more. Students can color their favorite super hero on the computer, there is a Science Lab, and teachers can find activities for students in grades K through 2 as well as toddlers and preschoolers.
   (For more details, see ENC Record.)
   
   
9. Sieve of Eratosthenes (grades 9-12)
   Date: 2003 Grade(s): 9 - 12 Cost: Free ENC#: 100879
   This virtual manipulative offers two modes for examining the patterns of multiples found on a grid displaying the numbers 2-200. In one mode, the student clicks a number on the grid, turning it red and removing all multiples of the number from the grid.
   (For more details, see ENC Record.)
   
   
10. Sieve of Eratosthenes (grades 6-8)
    Date: 2003 Grade(s): 6 - 8 Cost: Free ENC#: 100878
    This virtual manipulative offers two modes for examining the patterns of multiples found on a grid displaying the numbers 2-200. In one mode, the student clicks a number on the grid, turning it red and removing all multiples of the number from the grid.
    (For more details, see ENC Record.)
    
    
11. Mandelbrot and Julia sets (grades 9-12)
    Date: 2003 Grade(s): 9 - 12 Cost: Free ENC#: 101255
    Using this applet, students can view and experiment with images of the Mandelbrot and Julia sets. The applet allows for enlarging sections of each image and for exploring how the two sets are related.
    (For more details, see ENC Record.)
    
    
12. Koch triangle (grades 9-12)
    Date: 2003 Grade(s): 9 - 12 Cost: Free ENC#: 101254
    With this online manipulative, students can view the generation of the Koch snowflake and the Sierpinsky carpet. In these fractal constructions, smaller and smaller constructions using the same algorithm are viewable.
    (For more details, see ENC Record.)
    
    
13. Number and operation. Grades K-2
    Date: 2003 Grade(s): K - 2 Cost: Free ENC#: 100599
    This MathPARTNERS unit contains 11 lessons with hands-on learning activities for exploring numbers, counting and operations, and numerical representations with young children. Each lesson contains reproducible student materials and features an overview of the mathematics involved, guidelines for preparing the lesson, teaching tips, and suggestions for using each activity to develop specific mathematics concepts.
    (For more details, see ENC Record.)
    
    
14. Space coupe to the rescue
    Date: 2003 Grade(s): 2 - 6 Cost: Free ENC#: 100642
    For this online activity, students raise and lower their Space Coupe to line it up and destroy virus pods using positive or negative numbers. The challenge is to destroy all eight virus pods within a given time.
    (For more details, see ENC Record.)
    
    
15. Number and operation. K-2 assessment
    Date: 2003 Grade(s): K - 2 Cost: Free ENC#: 100600
    This assessment material is designed to help the mentor determine what a K-2 student understands relative to numbers and operations. The material contains a set of ten short assessment activities requiring the use of dominoes, counters, Popsicle sticks, and number cards.
    (For more details, see ENC Record.)
    
    
16. Number patterns, fun with curves, and topology
    Date: 2003 Grade(s): 6 - 10 Cost: Free ENC#: 028487
    This Internet site offers a collection of resources and topic links designed to help students explore geometric patterns and other concepts of interest not usually covered in typical mathematics curricula. Teachers may also use this site as a source for lessons, activities, and additional curriculum resources.
    (For more details, see ENC Record.)
    
    
17. PrimaryGames, math
    Date: 2004 Grade(s): Pre-K - 4 Cost: Free ENC#: 029290
    This web site provides online games for children in grades preK-4. Players practice their knowledge of numbers, addition and subtraction, geometry, and more.
    (For more details, see ENC Record.)
    
    
18. Stamps: how can you use old stamps?
    Date: 2002 Grade(s): 6 - 8 Cost: Free ENC#: 100313
    This challenge asks students to determine possible ways for combining stamps costing 15 and 33 cents to total 1 dollar 77 cents. It notes that this type of problem is similar to a process used for creating security codes.
    (For more details, see ENC Record.)
    
    
19. Do you have a radar bill in your pocket?
    Date: 2002 Grade(s): 6 - 8 Cost: Free ENC#: 100585
    This activity introduces students to radar bills (currency that has serial numbers that read the same forward and backward) and challenges them to estimate how frequently radar bills occur. The activity, part of the Figure This! collection of 80 math challenges emphasizing math in the real world, explains how symmetry and repeating patterns are important to mathematicians, scientists, and artists.
    (For more details, see ENC Record.)
    
    
20. PrimaryMath: paperless arithmetic learning for school and home
    Date: 2003 Grade(s): K - 5 Cost: Free ENC#: 029306
    This web site generates arithmetic problems for student practice. It is designed to be used either by students on their own or as a means for teachers or parents to set up assignments that students may complete.
    (For more details, see ENC Record.)