Links

Chapter 7: Representing Multi-Digit Whole Numbers

Base Ten Block Applet
www.arcytech.org/java/b10blocks/b10blocks.html
This links to virtual base ten blocks users can manipulate either in school or at home.

Magic of a Million Activity Book
http://davidschwartz.com/blog/?page_id=61
This links to activities related to gaining a sense of the size of one million. The site is maintained by author David Schwartz, who has written many well–known children’s books about the size of one million.

Math Cats
www.mathcats.com/explore/reallybignumbers.html
This links to an activity that teaches the names of very large numbers.

Place Value Game
http://education.jlab.org/placevalue/index.html
This links to a game where the user can create the greatest number possible with the digits the computer selects.

Place Value Lesson
www.linkslearning.org/Kids/1_Math/2_Illustrated_Lessons/3_Place_Value/index.html
This links to a video of a place value lesson. The voice-over brings out some of the important points of the lesson.

Place Value Puzzler
www.funbrain.com/tens/index.html
This links to an activity to let the user practise place value skills.

Prime Numbers
http://primes.utm.edu
This link takes you to many websites that deal with prime numbers. Some of the sites simply list the first 100 or 200 or more primes, other show some of their properties, and still others explain number theory concepts. Other links present unsolved problems students could explore.

Sieve of Eratosthenes
www.math.utah.edu/~alfeld/Eratosthenes.html
This link allows students to see the Sieve of Eratosthenes used to determine which numbers are primes.