Measurement Sites

1. Measure it - Practice using a ruler, in inches and centimeters

2. Perimeter - Lesson on perimeter and practice

3. Area and Perimeter - Calculate the area or perimeter of the rectangle

4. Finding the area and perimeter of rectangles and sqares - interactive

5. How Many Pearls - You've just stumbled on a treasure chest filled with pearls and you want a quick estimate of the number, without having to count them one by one.

6. Area Explorer - Students are shown shapes on a grid after setting the perimeter and asked to calculate areas of the shapes.

7. Perimeter Explorer - Students are shown shapes on a grid after setting the area and asked to calculate perimeters of the shapes.

8. Shape Explorer - Students are shown shapes on a grid and asked to calculate areas and perimeters of the shapes.

9. Estimator - Practice estimation skills by determining the number of objects, length, or area. (parameters: error tolerance)

10. Comparison Estimator - Similar to Estimator but compares two sets of objects.

11. 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.