Lesson Plan
EngageNY

The Decimal Expansion of Some Irrational Numbers

For Students 8th Standards
Develop a definition of irrational numbers through an exploration of square roots. The 11th lesson in this series of 25 asks scholars to estimate the value of a square root. Learners observe as the estimation extends further and further...
Lesson Plan
Curated OER

Expert Estimators

For Teachers 3rd - 5th
A rich and well-designed instructional activity on estimation is here for you. The instructional activity utilizes a video; ITV Series: The Eddie Files 'Estimation: Going to the Dogs,' along with many websites. Several fantastic learning...
Lesson Plan
Shodor Education Foundation

Estimating With Fire

For Teachers 7th - 9th Standards
Watch the damage from a forest fire in this interactive simulation activity that challenges learners to estimate the burn area using different approaches. Learners are given a worksheet to track the different burn patterns and practice...
Activity
Noyce Foundation

Fractured Numbers

For Students K - 12th Standards
Don't use use a fraction of the resource — use it all! Scholars attempt a set of five problem-of-the-month challenges on fractions. Levels A and B focus on creating fractions and equivalent fractions, while Levels C, D, and E touch on...
Lesson Plan
EngageNY

Decimal Expansion of Pi

For Students 8th Standards
Develop a better understanding of the value of pi. Learners explore the area of a circle using estimation and graph paper. While continuing to estimate the area of the circle using smaller and smaller grids, the number pi emerges. 
Lesson Plan
Curated OER

Why Guess When You Can Estimate

For Teachers 3rd - 6th
They apply various strategies in their estimations. They analyze the differences between guessing and estimating. They estimate the number of beans and jellybeans in egg cartons and jars respectively.
Lesson Plan
EngageNY

Scientific Notation

For Students 8th Standards
Young mathematicians learn how scientific notation is meant to save time. Part 10, out of a series of 15, asks scholars to recognize the correct use of scientific notation and finish by adding and subtracting numbers using...
Activity
Noyce Foundation

Perfect Pair

For Students K - 12th Standards
What makes number pairs perfect? The resource provides five problems regarding perfect pairs of numbers, the definition of which changes in complexity with each task. Solutions require pupils to apply number sense and operations, as well...
Lesson Plan
Curated OER

Guesstimate? NO Estimate!

For Teachers K - 3rd
Students discover the advantage of estimation over simple guessing using number relationships. They also discover how useful a mathematical tool estimation is in everyday life.
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...
Lesson Plan
EngageNY

The Pythagorean Theorem

For Students 8th Standards
Class members explore the estimation of irrational numbers in association with the Pythagorean Theorem. The first lesson of this module challenges pupils to use the Pythagorean Theorem to find unknown side lengths. When the length is not...
Lesson Plan
Curated OER

Deric's Blotto

For Teachers 9th - 10th
Students solve the handshake problem and investigate triangular numbers. In this geometry lesson, students investigate Blotto games as they apply concepts of triangles and geometric theorems.
Activity
Education Development Center

Choosing Samples

For Students 6th - 7th Standards
What makes a good sample? Your classes collaborate to answer this question through a task involving areas of rectangles. Given a set of 100 rectangles, they sample a set of five rectangles to estimate the average area of the figures. The...
Lesson Plan
Curated OER

Back To the Basics: Measurement

For Teachers 4th - 5th Standards
Lead the class in a review of the basic concepts and procedures involved in measuring length, weight, and volume. After whole group instruction, small groups and individuals practice measuring by completing a variety of fun activities...
Lesson Plan
Curated OER

Inquiry Unit: Modeling Maximums and Minimums

For Teachers 8th - 12th
Young mathematicians explore the maximun area for patio with the added complexity of finding the mimimum cost for construction. First, they maximize the area of a yard given a limited amount of fence and  plot width v. area on a...
Lesson Plan
Curated OER

Conserving Water through Art!

For Teachers K - 4th
Students study water conservation. In this water conservation lesson plan, students investigate the scarcity of water and determine reasons for conserving water.  Students estimate how much water they use in one day and identify...
Lesson Plan
Curated OER

Out of This World

For Teachers 4th - 6th
Students are introduced to the solar system and its place in the universe. They begin to grasp the idea of very large numbers by estimating and computing how long it take the class to make a million x's.
Lesson Plan
Curated OER

Louisville's Best Field Day Park

For Teachers 7th - 12th
Students create a survey to hand out to determine the best field day park. Using their local area, they select five parks, if possible, that meet the criteria and calculate the distance and estimated time travel. They use this...
Lesson Plan
Curated OER

Prairie Math

For Teachers 5th - 8th
Students work together to build models of prairie plants. Using the model, they estimate the height and then measure them using metric and standard units. They write a fraction to represent their part of the whole set and compare and...
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
Curated OER

Buggin' Out (Identifying and Adding Amounts of Money)

For Teachers 2nd - 3rd
Young scholars explore consumer math by participating in estimate exercises. In this currency lesson, students identify and define each piece of U.S. currency and their value to the monetary system. Young scholars complete several money...
Lesson Plan
Curated OER

Sizing Up the Supersize Croc

For Teachers 6th - 8th
Students examine and compare traits of humans and crocodiles.  In this crocodile lesson students use a ratio to estimate the height of a person and compare that to a crocodile. 
Lesson Plan
Curated OER

Apple Estimation: Percentages & Subjective Reasoning

For Teachers 2nd - 8th
Students practice using their estimation skills by utilizing apples.  In this percentage lesson, students utilize a scale and an apple to discover the percentage of each bite they take.  Students share their data with the rest...
Lesson Plan
Curated OER

Probability Using M&M's

For Teachers 3rd - 4th
Students estimate and then count the number of each color of M&M's in their bag. In this mathematics lesson, students find the experimental probability of selecting each color from the bag. Students create pictographs and bar graphs...