Is 0.56 stronger than -0.78? Interpret the correlation coefficient as the strength and direction of a linear relationship between two variables. An algebra lesson introduces the correlation coefficient by estimating and then...

What if I can no longer justify area by counting squares? Lead a class discussion to find the area of a rectangular region with irrational side lengths. The class continues on with the idea of lower approximations and...

Class members explore the estimation of irrational numbers in association with the Pythagorean Theorem. The first lesson of this module challenges pupils to use the Pythagorean Theorem to find unknown side lengths. When the length is not...

Boiling down any division problem to a one-digit divisor problem sure makes estimation easy. The lesson shows how to estimate division problems by using place value understanding and basic arithmetic facts to simplify the division. Some...

Don't just think outside of the box — read outside of it! The 15th lesson in a 22-part unit provides pupils more work with box plots. Learners read the box plots to estimate the five-number summary and interpret it within the context....

Middle schoolers plan a menu for a family of four for a day. They estimate the cost of purchasing items on that menu based on a $ 50.00 budget and calculate the actual costs of those items and compare the estimated and actual costs.

In this mathematics worksheet, 6th graders estimate the product and use an array to help them find the product. Then they find the exact product and locate where to put the decimal point in each.

In this elementary math worksheet, students find the estimated values to solve the 10 word problems using the multiple choice format.

Students, in groups, estimate and check the weights of classroom objects using coins as the standard of measure.

In this estimation in measurement learning exercise, students are given four rulers with measurements marked on each. Students estimate each measurement and mark their answers.

For this science project worksheet, middle schoolers create a raft from a 20 X 20 piece of aluminum foil and four plastic straws that will hold the highest number of pennies. Then they estimate the number of pennies that they believe...

In this estimating products worksheet, 5th graders round numbers to find an estimate of the product. Students are to estimate by finding a range.

In this mathematics worksheet, 6th graders find the quotient for each problem. They estimate first and identifying which number they will use. Then, students divide the problem and multiply to check.

In this mathematics worksheet, 6th graders find the quotient for each problem listed. Then thy explain their estimates, divide, and multiply to check their answers.

In this quotient worksheet, students write 2 division problems that would give the estimated quotient given. A reference web site is given for additional activities. 

Students explore measurement. In this math instructional activity, students measure how far they can jump using blocks. Students compare the results when different sized blocks are used. Students estimate the distance jumped.

Students use a similar method to the Lincoln Index to estimate a population size.

Students explore the concept of estimation. In this estimation lesson, students estimate the number of Cheerios in their cup. Students then determine the number of Cheerios in the entire box using what they know about their cup.

In this estimating weights of objects worksheet, students observe objects, estimate the metric measurements, and choose the best answer. Students solve 9 problems.

In this centimeter/meter worksheet, students read the lengths of animals. look at a centimeter ruler and meter stick and circle the best estimate of the length of each animal. Students then order the lengths.

In this rounding and estimating worksheet, 5th graders solve 8 addition, subtraction, and rounding problems. Problems ask students to solve, round, estimate, or write the words in number form after reading the word form. 

In this estimating instructional activity, students estimate the whole numbers that arrows on a number line are pointing to, 0-10. A website reference for additional activities is given.

Young scholars use tables showing the ratios between ounces and pounds, grams and kilograms, and pounds and kilograms. They estimate whether an object should be weighed in ounces or pounds and whether an object should be weighed in grams...

Second graders complete math activities with donated seasonal treats. They estimate, count, sort, name and graph bags of treats. They can eat treats when finished.