EngageNY
Why Worry About Sampling Variability?
Are the means the same or not? Groups create samples from a bag of numbers and calculate the sample means. Using the sample means as an estimate for the population mean, scholars try to determine whether the difference is real or not.
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Everyday Mathematics: Rounding
In this rounding practice worksheet, students sharpen their math skills as read tips pertaining to rounding numbers and try the extra practice activities.
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Subtracting Two- and Three-Digit Numbers
In this subtracting two- and three-digit numbers worksheet, young scholars, with a partner, problem solve and calculate the answers to fourteen subtraction equations.
Pennsylvania Department of Education
Round Numbers to Nearest Ten or Hundred
Third graders review telling time. In this lesson on telling time, 3rd graders discuss various items that show length of time, including clocks, calendars and sand timers. Students review and practice what they already know about telling...
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Dividing Decimals
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.
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Subtracting Whole Numbers and Decimals
In this math worksheet, students learn to subtract whole numbers and decimals. Students are given step by step directions on how to solve one sample problem, then complete 5 examples on their own. Example: 6.57 - 3.28. There is...
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What is the connection between rice and estimation?
Sixth graders investigate estimating. In this estimating lesson, 6th graders estimate how much rice is eaten around the world. Students estimate the percentages of rice eaten by other countries. Students compare rice production to...
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Double, Double: Looking at the Effect of Change on Perimeter, Area and Volume
Pupils explore perimeter, volume, and area. In this math lesson, students explore how changes in dimensions of geometric shapes affect the perimeter, area and volume of the various shapes. Pupils investigate the results when the...
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Mental Money
Students access prior knowledge to round numbers and add decimals. In this mental math lesson, students share the book Betcha and calculate estimates for three jars based on the book. Students calculate money answers based on coins...
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Finding the Percent of a Number
In this mathematics worksheet, 6th graders find the percents of various numbers. They set up the problem, estimate, and write their response. Students also compare their answers to their estimates for each problem.
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Discovering Pi/Welcome to Pi Day
Students explore pi. In this circle measurement lesson, students define and identify radius, diameter, circumference, and perimeter. Students work in groups to measure several plastic lids and record their findings. Students compare the...
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Hey, Pythagoras! Help Me Understand Your Theorem!
Learners explore the Pythagorean Theorem. In this math lesson, pupils solve problems using the Pythagorean Theorem. They select the appropriate numbers to substitute in the formula to solve problems.
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Estimating With Fractions
Seventh graders, exploring methods to estimate fractions, take notes on estimating fractions, 7th graders write letters to explain the process of estimating fractions and mixed numbers to someone who does not know the concept. Students...
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What's in the Bag?
Help your students identify the attributes of two-dimensional shapes. They read the book Round is a Mooncake, and use pattern blocks to sort shapes. Students sort shapes according to their attributes.
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Questioning NASA
Space science and math collide in this inquiry that investigates launching times for antacid-tablet rockets! Upper elementary or middle school learners collect data as they launch these mini rockets. They apply concepts of place value...
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Zeros and Blackbirds
Fifth graders convert kilometers to miles and calculate the range that historical aircraft can travel. They choose destinations by distance that can be traveled without refueling.
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Estimating Products
In this math worksheet, students round numbers to their leading digit. They multiply the results to find the estimation of the exact answer. Students estimate and then find the exact answer on six problems.
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Tzedakah: How Can We Help?
Learners define what constitutes a nutritious meal, the price of a healthy meal, and understand that some people can't afford healthy meals. In this healthy meals lesson, students estimate and research the cost of a nutritious meal, add...
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Estimating With Decimals
How can we estimate the answers when working with decimals? That's what the question is as the class reviews two-digit decimal addition. Have them estimate by rounding to a whole number either before or after they have completed their...
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Estimation and Pattern Discovery
Students collect sunflower heads from their community garden. They estimate its seed count using different strategies. They graph their estimations on a graph and use calculators to find the actual total.
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Around and Across
Tenth graders investigate the circumference and diameter of a circle. In this geometry lesson, 10th graders relate circumference to diameter. They create a scatter plot to estimate the value of pi.
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Number Sense
First graders practice rounding 4 digit numbers using place value concepts. In this estimating sums and differences lesson, 1st graders explore clustering, rounding, and front end estimation as methods for rounding decimals.
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Units Of Measure
Students investigate concepts relating the use of the metric system of measurement. They practice the skill of estimating units and especially which ones to use in certain problems for the most reasonable answer. The lesson includes...
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Study Buddies: Dividing by One-Digit Divisors
Fourth and fifth graders learn long division by one digit divisors. They learn the steps: divide, multiply, subtract, compare, bring down, repeat. Pupils solve five problems in a step by step format.