Curated OER
Decimals: Collaborative Lesson
Students explore mathematics by participating in a group activity. In this number value instructional activity, students identify the uses for decimals and how to best estimate whole numbers based on decimals and fractions. Students...
Curated OER
Estimating Profit from a Job
Students create a budget. In this estimation and rounding lesson plan, students create a budget for a painting job. They must make sure that they come out with a profit.
Curated OER
By the Numbers?
In this counting instructional activity, students read about counting and when it is appropriate to find an exact count of something, versus counting by ten to find an estimate. They then read 10 items that can be counted and indicate...
Curated OER
Problem-Solving Skill: Is an Estimate Enough?
In this problem-solving skills worksheet, students learn how to determine whether or not an estimate is enough when solving a problem. They then use this skill to solve the 2 questions at the bottom of the page.
Curated OER
Math and Literature
Students listen to the reading of "The Button Box" and use buttons provided to tell a story about a chosen button, compare their own buttons to those in the reading. They estimate how many buttons are in a bag and sort buttons based on...
Curated OER
Making Estimations in Measurement
Students utilize their knowledge of measurement in making accurate measurements and estimations.
Scholastic
Scholastic: Max's Math Adventures: A Sweet Story
In this Max's Math Adventure, estimate pieces of candy with Max, Ruthie, and Pop. Features include a teacher's guide, activity sheet, and extra challenges.
Shodor Education Foundation
Shodor Interactivate: Fire: Estimating Percent
This interactive activity allows the student to visually practice estimation skills by estimating the number of trees and the percent of trees burned in a forest fire. There are 3 levels that provide estimating practice for large and...
Teachnology
Teachnology: Measurement Teaching Theme
Measurement Teaching Theme provides an excellent collection of free sample worksheets, teacher resources, lesson plans and interactive media for the elementary grades.
PBS
Pbs Kids Afterschool Adventure!: Operation: Numbers 1 10 Activity Plan
In this week's Afterschool Adventure, children will explore simple math activities using the numbers one through ten. Children will represent numbers in different ways, such as drawing quantities; writing numerals; and using number...
Hopelink
Hopelink: Teaching Percentages
Students can brush up on percentage skills with this lesson and calculate percentages using the "Percent Tricks method." For students to successfully use this method, they must have the ability to multiply and divide whole numbers.
PBS
Pbs Learning Media: How Many Jelly Beans?
In this video segment from Cyberchase, Inez estimates whether she has enough jelly beans in her large container to decorate all of the cookies in her batch.
PBS
Pbs Kids: Peg + Cat: Chickens in Space
In this interactive, practice estimating size and quantity to send 100 chickens into space.
PBS
Pbs Kids: Peg + Cat: Games: Bubble Bath
Help Pet and Cat fill the bathtub with water by picking a container and pouring water into the tub. You will have to estimate how many containers it will take to fill the tub with water and then see if you are correct.
Other
Mr. Pitonyak's Pyramid Puzzle
Students estimate the cost of building an Egyptian pyramid with modern materials and ancient building methods in this math project.
Scholastic
Scholastic: Study Jams! Math: Problem Solving: Estimate Whole Numbers
This site provides great practice on the concept of estimating whole numbers. Students can first learn about the topic by watching a step by step instruction video that also points out areas of concern. Finally, students can practice...
Sophia Learning
Sophia: Identifying Certain and Uncertain Digits
A brief overview of the use of certain and uncertain digits in measurement.
Sophia Learning
Sophia: Order of Magnitude
This slide show presentation introduces the concept of order-of-magnitude, and how it is used to estimate large values in physics.
Sophia Learning
Sophia: Order of Magnitude
A short introduction to the concept of order-of-magnitude, with an explanation of how it is used to make estimations in physics.
Sophia Learning
Sophia: Practice Estimating
Follow this guided example estimating the volume of a solid cylinder. [2:14]
Sophia Learning
Sophia: Significant Figures Addition & Subtraction
A guided lesson explaining how to add and subtract numbers expressing the answer with the appropriate number of significant digits.
Sophia Learning
Sophia: Adding With Significant Figures
A brief presentation helping the learner understand how many significant figures to use when adding numbers.
Khan Academy
Khan Academy: Estimating With Dividing Decimals
Student practice estimating with dividing decimals.
Khan Academy
Khan Academy: Estimating With Subtracting Decimals
Student practice over estimating with subtracting decimals.