Worksheet
Curated OER

Activity: Estimate Time

For Students 2nd - 4th
In this estimating time review worksheet, students practice their estimation skills as they estimate how many times they can do 3 activities in 1 minute. Students check their work and then identify things that take them 30 seconds, 5...
Worksheet
Curated OER

Round and Estimate

For Students 3rd - 5th
In this estimation and rounding worksheet, students estimate sums or differences by rounding to the nearest hundred mile, then find the total distance from one given spot to another. 
Worksheet
Curated OER

Estimate High and Low: Compatible Numbers

For Students 3rd - 5th
In this estimation worksheet, students read about compatible numbers and complete a chart, estimating quotients and determining if estimations were "over or under." Students then answer questions related to the chart.
Worksheet
Curated OER

Guess and Check Word Problems

For Students 4th - 6th
Using the guess and check method, students solve six word problems involving multiplication and division. Each problem presents a different scenario for students to solve. The learning exercise could be used for individual or small group...
Lesson Plan
Illustrative Mathematics

Cynthia's Perfect Punch

For Teachers 3rd - 5th Standards
Using a real-world example, this problem illustrates the thought process that learners need to engage in to understand adding mixed numbers with common denominators. First by looking at estimation, and then by drawing models that...
Worksheet
Curated OER

Compare Time

For Students 2nd
In this estimating time learning exercise, 2nd graders solve 6 problems in which the time it takes to perform a specific task is estimated. Students choose an estimate from two answers.
Lesson Plan
Illustrative Mathematics

Irrational Numbers on the Number Line

For Teachers 7th - 9th Standards
There are four irrational numbers that participants need to graph. Pi(π), -(½ x π), and √17 are easy to approximate with common rational numbers. On the other hand, the commentary describing the irrational number 2√2 is not...
Assessment
1
1
Balanced Assessment

Fermi Estimates I

For Students 9th - 12th Standards
Enrico Fermi, the physicist responsible for the first nuclear detonation, was known for his ability to estimate with little or no data. Use this task to have your classes practice their Fermi skills. They estimate the magnitude of three...
Lesson Plan
Illustrative Mathematics

Reasoning about Multiplication and Division and Place Value, Part 1

For Teachers 5th - 7th Standards
Help your class make sense of quantities and their relationships. Given is the product of two numbers. It is up to your number crunchers to think about the quantitative relationship when the product is one-tenth or ten times the product...
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...
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...
Assessment
1
1
Balanced Assessment

Fermi Estimates II

For Students 9th - 12th Standards
How many hot dogs does Fenway Park go through in a year? Learners estimate answers to this question and more as they work through the task. Problems require participants to make assumptions and use those assumptions to make estimations.
Worksheet
Yummy Math

Valentine’s Day = Roses

For Students 4th - 8th Standards
Roses are red, but did you know that some are lighter while others are darker? Scholars read an infographic to decipher the fraction and percent of rose color and their country of origin. They go on to make comparisons and estimate while...
Instructional Video14:56
Corbett Maths

Area under a Graph

For Students 8th - 12th Standards
What? The calculation of area is a linear distance? A short video shows how to use the areas of simple polygons to estimate the area under a graph. Pupils divide the area under a curve into figures to easier calculate the area. Given...
Worksheet
Concord Consortium

Rule of 72

For Students 9th - 12th Standards
Find an easier way to double it. Using the price of an item and the Consumer Price Index, learners determine how long it will be for the price to double. Scholars calculate the length of time it would take for the price to double using a...
Worksheet
Curated OER

Speed Challenge

For Students 4th - 8th
In this science learning exercise, students create a race track and mark each distance as stated. Then they perform each task and record the time it takes them for each. Students also record their data from the experiment into the chart...
Worksheet
Curated OER

How Does Water Cool?

For Students 5th
How fast does water cool? First fifth graders will draw a line on a graph that predicts how fast they think water can cool from boiling. Then they plot the actual data on the same graph to see if their estimate was correct.
Lesson Plan
1
1
Illustrative Mathematics

Equivalent fractions approach to non-repeating decimals

For Teachers 6th - 8th Standards
Trying to get your class to think of decimals as fractions and vice versa can lead to interesting discussions. After all, we can usually understand quickly that 1/4 is .25 but why is 1/7 not so easy to convert? This activity looks...
Lesson Plan
Curated OER

Using Random Sampling to Draw Inferences

For Teachers 7th Standards
Emerging statisticians develop the ability to make inferences from sample data while also working on proportional relationships in general. Here, young learners examine samples for bias, and then use random samples to make...
Assessment23:03
Mathed Up!

Scatter Graphs

For Students 7th - 10th Standards
Make an estimate by getting in line. The class works with scatter plots and lines of best fit to make an estimate for given values. Pupils determine whether there is a positive or negative correlation and draw a best-fit line. Using the...
Worksheet
Curated OER

Estimate Quotients

For Students 3rd - 5th
For this quotient worksheet, students write 2 division problems that would give the estimated quotient given. A reference web site is given for additional activities. 
Worksheet
Curated OER

Decimals

For Students 5th
In this decimals worksheet, 5th graders solve 20 different problems that include adding and subtracting various decimals. First, they add or subtract the decimals like they would whole numbers. Then, students line up the decimal points...
Interactive
Curated OER

Estimating: Pretest

For Students 5th
For this estimation worksheet, 5th graders read word problems and estimate their outcomes. Students complete 8 multiple choice questions.
Worksheet
Curated OER

Estimating Butterflies

For Students 1st - 3rd
In this estimation worksheet, students estimate how many butterflies are in the picture and have 25 or 55 to choose from. Students estimate and eventually count 25 butterflies.

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