Worksheet
Curated OER

Rounding to Add

For Students 2nd - 3rd
In this rounding to add learning exercise, students round addends to the nearest ten and estimate sums for 14 problems. One example is completed; a website reference is given.
Worksheet
Curated OER

Rounding to Nearest Ten #2

For Students 2nd - 3rd
In this rounding worksheet, students solve a total of 30 problems rounding 2-digit numbers to the nearest 10. A website reference for additional resources is given.
Worksheet
Curated OER

Rounding to Nearest 10

For Students 2nd - 3rd
In this rounding worksheet, students solve a total of 30 problems rounding 2-digit numbers to the nearest 10. A website reference for additional resources is given.
Worksheet
Curated OER

Estimating and Measuring Angles (B)

For Students 3rd - 5th
In this estimating and measuring angles review worksheet, students use their math skills to solve 6 problems that require them to estimate and measure each of the 6 angles.
Worksheet
Curated OER

The Pyramid: Estimating Volumes

For Students Higher Ed
In this estimating volumes activity, students determine the area and volume of pyramids. They draw a cross-section of the pyramid. This four-page activity contains approximately 20 problems.
Worksheet
Curated OER

Rounding to Add

For Students 2nd - 3rd
In this rounding to add instructional activity, students round addends to the nearest ten and estimate sums. A website reference for additional resources is given.
Lesson Plan
EngageNY

Sums and Differences of Decimals

For Students 6th Standards
Sometimes dealing with decimals is so much easier than dealing with fractions. The ninth lesson in a 21-part module has the class consider situations when it might be easier to add or subtract fractions by first converting to...
Lesson Plan
EngageNY

Random Sampling

For Teachers 7th Standards
Sample pennies to gain an understanding of their ages. The 16th installment of a 25-part series requires groups to collect samples from a jar of pennies. Pupils compare the distribution of their samples with the distribution of the...
Lesson Plan
National Research Center for Career and Technical Education

Business Management and Administration: Compound Interest - A Millionaire's Best Friend

For Teachers 6th - 12th Standards
Many math concepts are covered through this resource: percentages, decimals, ratios, exponential functions, graphing, rounding, order of operations, estimation, and solving equations. Colorful worksheets and a link to a Google search for...
Lesson Plan
Curated OER

Mystery Jars

For Teachers K - 5th
This is a twist on the old "guess how many jellybeans" game. Using estimation and math skills, learners participate in a fun "mystery jars" activity, trying to make educated guesses at how many objects are in two jars. The basic activity...
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...
Lesson Plan
Curated OER

It Takes Ten

For Teachers 2nd - 5th
Review and use standard units of measure with your math class. They move from station to station estimating and measuring length, volume, weight, and area. At each station they estimate and measure, and then compute the difference...
Worksheet
1
1
K12 Reader

Estimation

For Students 4th - 5th Standards
Teach your class a thing or two about making educated mathematical guesses. Learners read a passage that explains estimation and approximate and exact answers. They then respond to five questions about and related to the text.
Activity
Curated OER

Logistic Growth Model, Explicit Version

For Teachers 9th - 12th Standards
Via the concrete setting of estimating the population of the US, your algebra learners are introduced to a logistic growth model. Comparing and contrasting logistic, exponential, linear and quadratic models, to see which fits the data...
Lesson Plan
EngageNY

Decimal Expansions of Fractions, Part 1

For Students 8th Standards
Is it possible to add infinitely long decimals? As pupils complete the examples in the ninth lesson of this 25-part series, they determine that adding these decimals cannot be done without error. Their task is then to determine the size...
Lesson Plan
Curated OER

Estimation

For Teachers 3rd
Select items to purchase from a store, add up the total cost, then estimate the total cost! Kids count out the money needed to make the purchase and pay for the items. An excelent way to connect real life math and estimation!
Lesson Plan
Curated OER

Questioning NASA

For Teachers 4th - 7th Standards
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...
Lesson Plan
Alabama Learning Exchange

Comparing Fuel Economy

For Teachers 4th - 7th Standards
Compute fuel economy and gas mileage. Why? So you can teach rates and ratios, of course! Middle schoolers calculate the rate of miles per gallon for various vehicles. They research each vehicle, its mileage per gallon, and cost per...
Lesson Plan
EngageNY

Summarizing Deviations from the Mean

For Teachers 9th - 10th Standards
Through a series of problems, learners determine the variability of a data set by looking at the deviations from the mean. Estimating means of larger data sets presented in histograms and providing a way to calculate an...
Lesson Plan
EngageNY

Interpreting Correlation

For Teachers 9th - 10th Standards
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...
Lesson Plan
Creative Educator

Dream Room Design

For Teachers 3rd - 6th Standards
Junior designers brainstorm the elements that a bedroom might have, such as a bed, television, and dresser. They identify which items are needs and which are desires. They practice measurement skills in the classroom by determining its...
PPT
Curated OER

Dividing Decimals by Whole Numbers

For Teachers 4th - 5th
Dividing decimals is not hard, but one has to know how to manipulate the decimal point in order to achieve correct answers. In this math presentation, learners are taken through the process step-by-step in a clear and concise fashion....
Unit Plan
Virginia Department of Education

Classifying Angles

For Teachers 4th - 8th Standards
Don't be obtuse, this geometry unit is the just the right resource for educating the acute young minds in your class. From classifying and measuring angles, to determining the congruence of shapes, this...
Lesson Plan
Willow Tree

Measurement

For Students 8th - 11th Standards
Build a basic understanding of units of measure and create a great foundation for your learners. The lesson gives a complete overview of everything measurement, from types of measurement to rounding to conversions — it has it all! 

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