Lesson Plan
Curated OER

Pumpkin Play

For Teachers K
Have you ever examined a pumpkin and estimated the number of lines it has? In this math lesson plan, students count the actual number of lines, record and graph the results. They investigate the circumference, weight and buoyancy of the...
Lesson Plan
Education World

Predicting Pumpkins

For Teachers K - 8th
If you want more pumpkin seeds, you should get a bigger pumpkin—right? Young harvesters use estimation skills to make a hypothesis about how many seeds they will find in a pumpkin before examining the real number inside.
Assessment
1
1
Balanced Assessment

Fermi Number

For Students 9th - 12th Standards
A fermi number is a rough estimate of a quantity that is difficult or impossible to measure. Individuals design a process for making an estimation of a given scenario. For example, they determine a plan for estimating the number of...
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...
Assessment
1
1
Balanced Assessment

Fermi Area

For Students 11th - 12th
Discover creative ways to use surface area formulas. In the assessment task, scholars apply estimation strategies to determine surface area in non-routine problems. They consider surface area of kitchen sponges, rock salt crystals, and...
Activity
101 Questions

Pool Capacity

For Teachers 6th - 8th Standards
Here's hoping that we can all fit into the pool. Given pictures and dimensions of a pool in tile lengths, scholars decide how many people can fit into the pool. This requires consideration of area, as well as the application of some...
Instructional Video4:50
Corbett Maths

Medians and Quartiles from Grouped Frequency Tables and Histograms

For Students 6th - 10th Standards
Determine medians within a group. Given data represented as a frequency table of grouped data, the video demonstrates finding an estimation for the median. After finding the group where the median resides, the presenter uses a formula to...
Worksheet
Math Worksheets Land

My Favorite Animal At The Zoo Pie Graph

For Students 3rd - 4th Standards
What is your favorite animal at the zoo? Young mathematicians answer eight multiple choice questions, based on a survey of 50 people presented in a pie graph. Additionally, the graph does not display any numbers, but rather...
Assessment
Curated OER

Hot Under The Collar

For Teachers 7th - 9th Standards
Pupils try to get a collar on temperature with a short assessment item that asks them to compare two different methods in converting Celsius to Fahrenheit. Individuals try to find out when an estimation provides conversions that are...
Lesson Plan
California Mathematics Project

Meteorology

For Teachers 9th - 12th Standards
See how estimation is essential to making temperature weather maps. Scholars use ratios and rates of change to estimate temperatures at locations where temperature readings have not been made. They connect this idea to linear functions.
Interactive
CK-12 Foundation

Trapezoidal and Midpoint Approximations: Area of a Skirt

For Students 11th - Higher Ed
When are trapezoids better than rectangles? Using trapezoids pupils approximate the area of fabric defined by a function. Just like with rectangles, learners realize the more trapezoids the more accurate the approximation. Scholars use...
Lesson Plan
Willow Tree

Simplifying Square Roots

For Students 7th - 10th Standards
The square root of five and five do not have the same value! How many times have you addressed this with math classes? A lesson gives an explanation of a square root and gives examples for simplifying square root...
Lesson Plan
Illustrative Mathematics

Accuracy of Carbon 14 Dating II

For Teachers 9th - 12th Standards
The scientific issue of carbon-14 dating and exponential decay gets a statistics-based treatment in this problem. The class starts with a basic investigation of carbon content, but then branches out to questions of accuracy and...
Assessment
Los Angeles County Office of Education

Assessment for the California Mathematics Standards Grade 3

For Students 3rd Standards
Assess scholars' knowledge with a 22-page assessment that covers place value, patterns, probability, estimation, measurement, geometric figures; and their ability to add, subtract, multiply and divide proficiently. 
Lesson Plan
Curated OER

Pumpkin Problems

For Teachers K - 4th
Learners participate in a lesson that has the intention of working on estimation skills. They use pumpkins to estimate the number of seeds are inside. They collect data for each pumpkin and compare it to the estimation. Students question...
Lesson Plan
Curated OER

Number: Rounding Off and Approximating

For Teachers 3rd - 4th
Young mathematicians access a website that leads them through three activities that enable them to practice their rounding and estimation skills when it comes to numbers and math word problems. There is also a very good worksheet...
Lesson Plan
Curated OER

ExplorA-Pond: 4th Grade Perimeter Estimation

For Teachers 3rd - 4th
Your geometers are used to finding the perimeter of a square or rectangle, so give them something different this time! With this lesson, small groups will receive a picture of a shoreline and calculate the perimeter. The website listed...
Lesson Plan
Curated OER

Estimation and Measurement

For Teachers 2nd
Get second graders outside to estimate and measure how long 800 meters is on their school campus. They then measure the actual distance in yards to see how close their estimate was. An interesting teaching idea!
Worksheet
Curated OER

Linear Approximation

For Students 9th - 11th
In this algebra worksheet, students solve problems using estimation and the derivative. They calculate the critical points, domain and indicated intervals. They calculate the first and second derivative. There are 5 problems.
Worksheet
Curated OER

Successive Approximation and Euler's Method

For Students Higher Ed
In this approximation activity, students use the Euler's method to interpret a piecewise linear function. They explore why the approximation produced using a smaller stepsize is a better approximation. This four-page activity contains...
Lesson Plan
Curated OER

Online video games plus curriculum-based math equals an engaging educational tool.

For Teachers 7th
Seventh graders use online math games to practice understanding the skill of estimation and order of operations. In this lesson, 7th graders use the internet to play online games to strengthen their understanding of these skills. 
Worksheet
Curated OER

Estimate Quotients

For Students 5th
Fifth graders have to use division to solve problems in everyday situations. This worksheet on estimation and division has students practice these skills using real-life examples. The worksheet is part of the Houghton Mifflin math series...
Worksheet
Curated OER

Guess How Many: Estimation Practice

For Students 1st - 2nd
In this estimation worksheet, students estimate the number of stars in a picture, explain how they estimated and count the actual stars. Students then draw their own picture and have a classmate estimate stars.
Lesson Plan
Curated OER

Estimation

For Teachers 3rd - 6th
Students estimate time and amounts when counting is not realistic or feasible. In this estimation lesson, students estimate time or amounts. This lesson includes two video clips on estimation and a worksheet for independent practice.

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