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...
Lesson Plan
Curated OER

Adjusting the Quotient

For Teachers 4th
Fourth graders use number facts to estimate quotients. In this division lesson, 4th graders examine long division problems to determine which multiple of ten will help them determine a number that is close to a quotient. They adjust the...
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.
Lesson Plan
Curated OER

Measuring Using Leaves

For Teachers K - 2nd
Learners explore geometry by using non-standard measuring methods. In this length estimation lesson, students complete a worksheet in which different objects in their classroom are measured by three different sized leaves. Learners draw...
Lesson Plan
Curated OER

Counting Blood Cells

For Teachers 3rd - 5th
Students observe number sense by participating in an estimation activity. For this blood cells lesson, students identify the importance of blood cells in the human body and discuss how tiny they are. Students utilize paper dots as a...
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
Curated OER

It's About Time

For Teachers 1st - 3rd
First, second, and third graders explore elapsed time through estimation and prediction. They work with a partner to estimate how long it will take to perform various tasks. One person uses a stop watch to time his or her partner...
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...
Lesson Plan
Curated OER

A Mass of Pennies

For Teachers 1st - 2nd
Learners estimate and determine the number of cents (pennies) that are needed to equal the mass of a variety of common objects. They develop a process for measuring and explore concepts related to units of measurement.
Lesson Plan
Curated OER

Portrait Proportions and Flesh Tones

For Teachers 1st - 12th
Using the provided blank face template, learners of any age draw to learn how to create proper facial proportions. This lesson focuses on two dimensional facial proportions, how to estimate those proportions, and drawing techniques. If...
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
Curated OER

M&Ms Count and Crunch

For Teachers 6th - 8th
Middle schoolers practice skills involving statistics and probability by making predictions on number of each color candy in one pound bag of M&Ms. They record both guesses and actual quantities, calculate percentages, and create bar...
Lesson Plan
Curated OER

Measurement and Conversion of Units in a Recipe

For Teachers 4th - 5th
In a cross-curricular measurement and literacy lesson, your class will identify and compare cooking measurement instruments. They read a recipe and sequence a set of similar instructions in which the steps have been mixed up....
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
Mathematics Assessment Project

Estimating Length Using Scientific Notation

For Teachers 8th Standards
Would you rather have a million dollars or 1 x 10^6 dollars? To find the answer to this question, class members first complete an assessment task converting numbers between decimal notation and scientific notation. They then take...
Interactive
CK-12 Foundation

Square Roots and Irrational Numbers: Estimating Radicals

For Students 8th - 10th
Try out a resource using triangles to estimate radicals. An interactive app allows learners to approximate some irrational numbers involving square roots. They find the two consecutive numbers that an irrational number lies between...
Interactive
CK-12 Foundation

Length of a Plane Curve

For Students 11th - Higher Ed
Challenge your class to use straight lines when estimating the length of a curve. An engaging interactive allows individuals to place line segments one after another along the arc. Learners determine that the more lines used, the better...
Lesson Plan
EngageNY

Sampling Variability in the Sample Mean (part 1)

For Students 10th - 12th Standards
How accurate is data collected from a sample? Learners answer this question using a simulation to model data collected from a sample population. They analyze the data to understand the variability in the results.
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
Curated OER

Rising Gas Prices – Compounding and Inflation

For Teachers 9th - 12th Standards
Financial literacy skills and exponential models are connected by the compound interest formula in this task centered on inflation calculations. Collaborative learners get experience collecting data from the given websites and exploring...
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.

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