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## Explore numbers less than 0 by extending the number line through familiar applications (e.g., temperatures below zero, owing money, measuring elevation below sea level). 0506.2.9

1. Adding and Subtracting Integers - using a number line, several examples of adding to a negative integer are given
2. Applications of Integers - deals with negative numbers in the real world; temperature, banking, and sea level measurement are discussed, in addition hockey's use of negative numbers is included
3. Colored Chip Models - use manipulatives to model addition, subtraction, multiplication, and division with positive and negative integers [includes two practice problems]
4. Comparing Values - Create your own math facts worksheets for comparing values. Problems can include calculations using positive and negative numbers, and two-digit decimal values.
5. Explaining Negative Numbers - Video from YouTube (may be blocked by some school filters)
6. Integers - [designed for grade 6] Spy Guys Video on number line and negative integers.
7. Negative Numbers on a Number Line - explanation from the Math League [This expired link is available through the Wayback Machine Internet Archive. If the page doesn't load quickly click on Impatient? at the bottom right of the page.]
8. Negative Numbers for Children - Learn this card game to help students understand negative and positive numbers.
9. The Number Line - explanation, illustration, and practice
10. The Number Line - sea level and temperature examples are given on a vertical number line
11. Teaching Operations for Integers - Number line practice, patterns and more.
12. Tips for Teaching Integers - Helpful tips on teaching number line, negative and positive.

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