ArtsNow
Arts Now Learning: Operations and Algebraic Thinking With Music [Pdf]
Counting the number of beats in a common folk song, the students will use composition and classroom instruments to discover different combinations for accompaniment.
George Mason University
Lesson Plans: Whole Number Algorithms Base Ten Blocks
Brief lesson plans that show how to use base ten blocks to do all four operations and a little bit of algebra.
The Math League
The Math League: Whole Numbers & Basic Properties
Here is a nice resource for students and teachers about whole numbers and their basic properties. It provides links to information on place value, expanded form, and rounding numbers are just a few of the topics on this page.