National Council of Teachers of Mathematics
The Math Forum: Lesson Plan Non Standard Measuring
This is a short, fun lesson plan with a literature connection, "Miss Nelson is Missing". It uses candy bars as non-standard units for measuring objects in the classroom.
AAA Math
Aaa Math: Fraction Parts Eighths
This lesson describes eighths and gives practices and games identifying various amounts of eighths. Also shows other fractions visually.
AAA Math
Aaa Math: Identifying Place Value
This tutorial explains how to determine the place value of a number from ones to the one millions place. Includes practice and games to practice this skill.
abcteach
Abcteach: Teach: Decimals
[Free Registration/Login Required] Educators can generate worksheets for primary or elementary grades that focus on decimal addition, subtraction and fraction practice. Worksheets include graphics and answer key.