Sophia Learning
Sophia: Finding Area With a Grid: Lesson 4
Step by step, this lesson will show you how to add up the number of squares on the grid that are covered/contained by the shape in order to find the area of a figure. It is 4 of 7 in the series titled "Finding Area with a Grid."
Sophia Learning
Sophia: Finding Surface Area With Squares: Lesson 6
Following this lesson, you'll be able to use squares to find the total surface area of a figure. It is 6 of 7 in the series titled "Finding Surface Area with Squares."
Sophia Learning
Sophia: Rounding to the Thousandths Place: Lesson 10
This lesson demonstrates rounding up or down to the thousandths place in a decimal. It is 10 of 10 in the series titled "Rounding to the Thousandths Place."
Sophia Learning
Sophia: Estimating Surface Area
The fact that you can estimate the surface area of an object by rounding each of the relevant dimensions to the nearest number will be discussed in this lesson.
Tyler DeWitt, PhD
Science With Tyler De Witt: Significant Figures Made Easy!
Don't be confused by significant figures. Let Tyler DeWitt introduce significant figures, and more specifically how to round for multiplication and division using significant digits. [7:10]
Tyler DeWitt, PhD
Science With Tyler De Witt: Significant Figures and Zero (1.3)
When figuring significant digits, use this tutorial to help figure out how to deal with zeros. [7:36]
Khan Academy
Khan Academy: Estimating and Rounding With Decimals: Estimation With Decimals
This video shows how to estimate decimal addition in the context of a word problem.
Tyler DeWitt, PhD
Science With Tyler De Witt: Significant Zero Practice Problems (1.4)
Join Youtube chemistry tutor, Tyler DeWitt, do practice problems to work on significant figures with zeros. [8:09]
Tyler DeWitt, PhD
Science With Tyler De Witt: Significant Figures Made Easy! (1.2)
This introduction to significant figures discusses basics of multiplication and division. [5:01]
Math Playground
Math Playground: How Do You Round Numbers?
This video illustrates how to round numbers to the nearest place value.
Virtual Nerd
Virtual Nerd: How Do You Use Compatible Numbers to Estimate a Part of a Whole?
Follow along with this tutorial to see how to use compatible numbers to estimate the percent of a number. [2:27]
Virtual Nerd
Virtual Nerd: How Do You Mentally Find Percents That Are Powers of 10?
This tutorial explains how to calculate percents that are powers of 10. [2:59]
Virtual Nerd
Virtual Nerd: How Do You Round a Decimal to a Given Place Value?
Find out how to round a decimal to a given place value. [4:28]
Khan Academy
Khan Academy: Estimating Lengths
Video lesson provides practice with estimating the length of an object when given the length of another object. [2:02]
Sophia Learning
Sophia: Estimations of Products
Use estimations to determine the approximate value of a product. Complete assessment to check for understanding.
Sophia Learning
Sophia: Order of Magnitude
A video tutorial introduces the concept of order-of-magnitude, and explains how it is used to make estimations in physics. [2:13]
Imagine Learning Classroom
Learn Zillion: Estimate the Addition of Fractions With Unlike Denominators
In this lesson, you will learn to estimate the addition of fractions with unlike denominators by using a benchmark fraction. [3:24]
Imagine Learning Classroom
Learn Zillion: Assess Reasonableness of an Answer Using Front End Estimation
In this lesson, you will learn to check if your answers to story problems are reasonable by using front-end estimation. [4:40]
Imagine Learning Classroom
Learn Zillion: Solve Multi Step Word Problems Using Front End Estimation
In this lesson, you will learn how to solve multi-step word problems by using front-end estimation. [4:44]
Imagine Learning Classroom
Learn Zillion: Judge Reasonableness by Estimating
In this lesson, you will learn how to judge the reasonableness of an answer by estimating. [5:02]
Imagine Learning Classroom
Learn Zillion: Estimate Solutions to Two Step Word Problems
In this lesson, you will learn to estimate solutions to multi-step story problems by rounding. [4:11]
Art of Problem Solving
Art of Problem Solving: Decimals and Estimation
Video tutorial uses examples to reinforce understanding of how to estimate problems involving decimals. [7:16]
Imagine Learning Classroom
Learn Zillion: Estimate Solutions to Two Step Word Problems
In this lesson plan, you will learn to estimate solutions to multi-step story problems by rounding. [4:11]
Khan Academy
Khan Academy: 2 Step Estimation Word Problem
The teacher uses 2-Step estimation for word problems.