Curated Video
How to Estimate a Sum by Rounding
In this short math video we will answer a standardized math test question where we are asked to estimate a sum by rounding. We will review the rules for rounding to a whole number. If the value to the right of the decimal point is 5 or...
Curated Video
How to Estimate the Mean of a Data Set
This video shows the process for solving the problem presented in IGCSE A June 2018 paper 1HR Q2, which involves estimating the mean of a data set. In this video, students will learn how to use frequency tables to estimate the mean of a...
Curated Video
Estimating to Check the Reasonableness of Your Answer in Word Problems
In this video, students will learn how to estimate the answer to a word problem and check the reasonableness of their answer. The video covers different estimation strategies such as rounding, clustering, using friendly numbers, and...
Curated Video
Rounding to the Nearest 10 or 100 in Real World Situations
In this video, the teacher explains how to use rounding in real-world situations. Using examples such as estimating the number of students in a class, days until a birthday, fish in an aquarium, and pencils in a box, the teacher...
Curated Video
Estimating to Check Reasonableness
In this video, the teacher explains how to use estimation to check if an answer is reasonable. They demonstrate how to round numbers and use compatible numbers to make estimations in different math problems.
Curated Video
Assessing the Reasonableness of Sums Using Rounding
In this video, students learn how to assess the reasonableness of sums by using rounding. They are taught to round each number to the nearest place value and then add them together. By comparing the rounded sum with the actual sum,...
Curated Video
How to Estimate in Maths #21
This video covers how to get a quick but rough answer by estimating. This involves rounding the figures you're given to make them easier to work with. KS3 - All on your course GCSE Foundation - All on your course GCSE Higher - All on...
Curated Video
Estimating Addition and Subtraction of Decimals Using Smart Rounding
In this video, students learn how to use smart rounding to estimate the addition and subtraction of decimals without performing the actual calculation. They learn how to round numbers to familiar or easy-to-work-with values and provide...
Curated Video
Using Log Graphs to Estimate Parameters in Exponential Functions
This is a lecture presentation on how to use log graphs to estimate parameters in exponential functions. The presentation explains how to plot log graphs of exponential functions and how to determine the power and constant terms from the...
Curated Video
Estimating Mass: Using Reasoning to Find Object Mass
This video teaches students how to estimate the mass of objects using reasoning and benchmark objects. It explains that mass is the amount of matter in an object and can be measured in grams and kilograms. Through examples and...
Curated Video
Using Rounding in Real World Situations
This video explains how to use rounding in real world situations. It provides examples of rounding numbers to the nearest hundreds, thousands, and tens of thousands, and demonstrates how rounding can make numbers easier to communicate....
Curated Video
Assessing the Reasonableness of Multiplication Using Rounding
In this lesson, students learn how to assess the reasonableness of multiplication problem answers using rounding. They are taught to round each factor to the leftmost digit and then multiply to check if the answer is close to their...
Curated Video
Problem solving with estimation and rounding
Pupil outcome: I can use my knowledge of estimation and rounding to solve problems. Key learning points: - It may be helpful to estimate an answer to check the magnitude is correct. - It can be useful to use rounding to significant...
Curated Video
Horse Barn (Part 1) (Use estimation to solve multi-step word problems involving multiplication and division.)
MacDonald wants to buy grain to feed his 4 horses. He went to the shop where they sell grain in bags of 6 pounds each. A horse needs at least 8 pounds of grain. He wasn’t sure how many bags he should buy….but he estimated that he will...
Curated Video
Horse Barn (Part 2) (Use estimation to solve multi-step word problems involving multiplication and division.)
MacDonald wants to buy grain to feed his 4 horses. He went to the shop where they sell grain in bags of 6 pounds each. A horse needs at least 8 pounds of grain. He wasn’t sure how many bags he should buy….but he estimated that he will...
Curated Video
Estimating Solutions to Multistep Story Problems
In this lesson, students learn how to estimate solutions to multistep story problems by rounding. They are taught the concept of rounding and how to use benchmark numbers to determine whether a number should be rounded up or down.
Curated Video
Rounding and Estimating
Mr. Addit explains rounding and estimating and teaches how to use estimation to add, subtract, and multiply. He models how to estimate products in multiplication math problems.
Curated Video
Estimating Unit Rates: Approximating Ratios in Real-Life Scenarios
In this video, the teacher explains how to estimate unit rates using verbal descriptions and equations. They provide an example of estimating the number of students per teacher in a school, demonstrating the process of rounding and...
Curated Video
Fundraiser (Use mental math estimation and rounding to solve word problems.)
Third class had a small fund raiser. The table below shows the money raised on each day last week. About how much money did they raise last week?
Curated Video
Estimating Division by Setting up Equations
In this video, students learn how to estimate division by setting up an equation. The teacher explains the concept of multiplication and division being inverse operations and demonstrates how to use the multiplicative inverse to find the...
Professor Dave Explains
Estimating Sums Using the Integral Test and Comparison Test
How to estimate sums using the integral test and comparison test.
Curated Video
Rounding to three decimal places
Pupil outcome: I can round numbers to three decimal places. Key learning points: - Numbers with any number of decimal places can be represented on a number line. - Rounding is useful to estimate numbers to a degree of accuracy. - Numbers...
Curated Video
How to Estimate the Side Length of a Square
This video provides a step-by-step guide for estimating the side length of a square rug based on its given area, without using a calculator. It is useful for students preparing for standardized math tests.