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Worksheet
Curated OER

Rounding Up or Down?

For Students 4th - 6th
In this rounding activity, students fill in columns, rounding given numbers both up and down; the correct answer is given in a 3rd column. A reference web site is given for additional activities.
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Worksheet
Math Doctor

Chapter 5: Decimal Notation

For Students 5th - 8th Standards
Explore all things decimal in this thorough series of introduction activities. Including scripting for the teacher and detailed descriptions and examples, the plan begins by reviewing the basics of place value and writing fractions as...
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Lesson Plan
EngageNY

Rational Exponents—What are 2^1/2 and 2^1/3?

For Teachers 9th - 12th Standards
Are you rooting for your high schoolers to learn about rational exponents? In the third installment of a 35-part module, pupils first learn the meaning of 2^(1/n) by estimating values on the graph of y = 2^x and by using algebraic...
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Lesson Plan
Illustrative Mathematics

How Many Cells Are in the Human Body?

For Teachers 9th - 11th Standards
Investigating the large numbers of science is the task in a simple but deep activity. Given a one-sentence problem set-up and some basic assumptions, the class sets off on an open-ended investigation that really gives some context to all...
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Assessment
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1
Balanced Assessment

Sales Tax Table

For Students 9th - 12th Standards
Sales tax rates vary; do the math to find the right rate! Pupils use before tax amounts and after tax amounts to determine the tax rate. Rounding makes the task challenging.
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Activity
Teach Engineering

About Accuracy and Approximation

For Teachers 5th - 7th Standards
How accurate are robots? Groups draw lines by moving robots backwards and forwards by one rotation of the wheels. Using the appropriate formula, they determine the percent error in the length of the lines in relation to the calculated...
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Lesson Plan
EngageNY

Square Roots

For Students 8th Standards
Investigate the relationship between irrational roots and a number line with a resource that asks learners to put together a number line using radical intervals rather than integers. A great progression, they build on their understanding...
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Worksheet
Curated OER

Everyday Mathematics: Ballpark Estimates

For Students 2nd - 3rd
In this estimating practice worksheet, students sharpen their math skills as they learn how to make likely estimates and try the 2 extra practice activities.
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Worksheet
Curated OER

Estimating 0-10

For Students 1st - 2nd
In this estimating worksheet, students estimate the whole numbers that arrows on a number line are pointing to, 0-10. A website reference for additional activities is given.
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Lesson Plan
Curated OER

Estimation Using Goldfish Crackers: Math

For Teachers 2nd
Second graders explore estimation and rounding concepts using goldfish crackers and a song! They solve problems by estimating and rounding numbers and pick numbers within reason to represent certain objects.
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Lesson Plan
Curated OER

Reversing Numbers

For Teachers 2nd
Second graders solve a math word problem involving the addition of two digit numbers. They discuss the problem as a class, independently explore the problem, and discuss as a class the solution and how they organized their reversed...
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Worksheet
Curated OER

Round Each Number to the Nearest Ten

For Students 1st - 4th
In this rounding instructional activity, students practice rounding numbers to the nearest ten. There are 8 numbers that students round. The answers are included at the bottom half of the page.
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Lesson Plan
Curated OER

Mystery Stars: Estimating Whole Numbers Using Fractions Shown on Sectors of a Circle

For Teachers 4th - 5th
In this set of fraction worksheets, students cut out 6 pages of circles that show fractions with stars covering different sections of circles. They show one section of the circle in order to estimate the whole number of stars by looking...
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Worksheet
Curated OER

Estimating Activity

For Students 1st - 2nd
In this estimating worksheet, students estimate numbers of items in pictures, checking the box they determine has the closest number. A reference website for additional resources is given.
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Lesson Plan
Curated OER

Reasonable Estimates

For Teachers 3rd - 4th
Help pupils explore estimation. They will make estimates and discuss when you might use an estimate. Then they discuss if their estimates are reasonable.
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Lesson Plan
Curated OER

Introduction to Decimals

For Teachers 4th - 6th
Young math whizzes complete the online instruction, then solve 20 problems about identifying decimals, comparing decimals and fractions and ordering decimals.
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Worksheet
Curated OER

Round Each Number to the Nearest Thousand

For Students 2nd - 4th
In this rounding off instructional activity, students round off eight four-digit whole numbers to the nearest thousand. Students write their answers on the instructional activity.
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Lesson Plan
Curated OER

Robot Rounding!

For Teachers 4th - 8th
Learners collect data on a robot and relate the behavior to prove there is an infinite minute set of numbers. In this algebra lesson, students verify that there is always a number between two numbers. They analyze and make inference from...
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Worksheet
Curated OER

Math Skills Review

For Students 4th - 5th
For this math skills review worksheet, students solve 20 problems which pertain to place value, metric length conversions, placement of numbers on a number line and rounding to the nearest ten or hundred. This is intended as an online...
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Worksheet
Curated OER

Math Review

For Students 5th - 6th
In this math skills review worksheet, learners solve 45 problems pertaining to inequalities, positive and negative integers, Roman numerals and coordinate pairs. This page is intended as an online activity, but may be completed on paper.
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Lesson Plan
Curated OER

Paper Airplane Activity

For Teachers 9th
Ninth graders select and build one of five different paper airplane designs and test them for distance and for time aloft. Part of this activity is designed to explore NASA developed software, FoilSim, with respect to the lift of an...
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Lesson Plan
EngageNY

Sampling Variability

For Teachers 7th Standards
Work it out — find the average time clients spend at a gym. Pupils use a table of random digits to collect a sample of times fitness buffs are working out. The scholars use their random sample to calculate an estimate of the mean of the...
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Lesson Plan
Curated OER

How Close Can You Get? Estimating

For Teachers 3rd - 8th
Students work collaboratively to determine how many crackers are in a large container. They then view a video to see how often people use estimation in their jobs, and another video to watch students work on figuring out appropriate...
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Interactive
Curated OER

Estimating the Square- Root of Ten

For Students 9th - 11th
In this algebra worksheet, students estimate the square root. They rewrite the root as an exponential function and solve. They use the correct function notation. There are 10 questions.