Recognize that measurements are never exact. 0506.4.10

Links verified on 1/4/2012

1. Comparison Estimator - Similar to Estimator but compares two sets of objects.
2. Estimate - (use as a whole class activity) Select a range, display tick marks and estimate before revealing the answer.
3. Estimate Fractional Distance - watch Grammy carefully and estimate the fractional distance that represents where she jumped over the hedge
4. Estimation Valley Golf - Estimate answers to problems and putt your way into a championship!
5. Estimator - Practice estimation skills by determining the number of objects, length, or area. (parameters: error tolerance)
6. Guess the Number - developing skills in halving and estimation
7. Indicating Precision of Measurements - significant figures rules and two java applets for practice
8. Let's Go Shopping - estimate by rounding to the nearest dollar as they shop
9. More or Less Estimator - Similar to Estimator activity but states a quantity and asks the user to estimate whether the set of objects is more or less than the number given.
10. Round About - estimate by rounding
11. Significant Figures in Measurements and Calculations - regarding the degree of uncertainty in a measurement
12. That's Right - estimate measurements in real-world problems using money

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