For the Teachers
$1 Math
Captivate your class by having them find the value of their names, different zoo animals, musical instruments, etc.,with a mental math lesson. Using the coding formula listed, children learn to fluently estimate and calculate simple sums.
Curated OER
Math: Navigating the World Around Me
Young mathematicians research and discuss real world math word problems and ways in which they apply math concepts in their everyday lives. They create a storyboard of a math word problem from which they create a slide for a multi-media...
Curated OER
Estimating Fractions and Sums
What is a quick comparison, and how can it help you estimate sums and differences? For this estimation learning exercise, learners estimate fractions in addition problems. They complete four problems where they estimate the sums after...
Houghton Mifflin Harcourt
Unit 2 Math Vocabulary Cards (Grade 4)
The 28-page resource contains cards with terms relating to multiplication from inverse operations to front-end estimation to array. Each sheet contains two cards; one with the word and one with the definition.
Curated OER
"Eggs-ploring" Math with Jellybeans
Learners work in pairs with a small bag of jellybeans to estimate the number of candies in their bags and then figure out how many groups of 10 jellybeans are contained in their bags. They then graph the information using a pictograph or...
Curated OER
Use Google Maps to Teach Math
Capture the engagement of young mathematicians with this upper-elementary math lesson on measuring time and distance. Using Google Maps, students first measure and compare the distance and time it takes to travel between different...
Virginia Department of Education
Modeling Division of Fractions
Provide a meaningful context for learning about the division of fractions with this upper-elementary math lesson. Presented with a simple, real-world problem, young mathematicians work in small groups to develop visual models that help...
Curated OER
Math in English Skills IV Exercise Book: Multi-Digit Addition, Subtraction, Multiplication and Division
No one can deny the relationship between addition, subtraction, multiplication, and division. However, it's not always easy for learners to see the connection between basic operations. Help your class by providing them with an entire...
Curated OER
Using Known Facts to Multiply and Divide Mentally
Building strong mental-math skills requires learners to have a strong number sense. They practice multiplying two and three-digit numbers in their heads using estimation or approximation. They estimate or round each number and then...
Curated OER
Expert Estimators
A rich and well-designed lesson on estimation is here for you. The lesson utilizes a video; ITV Series: The Eddie Files 'Estimation: Going to the Dogs,' along with many websites. Several fantastic learning activities are...
Scholastic
Study Jams! Estimate Sums & Differences of Whole Numbers
Estimating is an essential skill used in everyday life. This presentation explains how to apply prior knowledge about rounding numbers to estimating sums and differences. Example problems and assessment include large numbers, making this...
Curated OER
Mental Maths
For this counting worksheet, students complete 22 fill in the blank problems where they are given a starting number and count by 1's, 2's, and 10's. Next. students answer 12 fill in the blank addition or subtraction problems where they...
Curated OER
Mental Math Blocks 2
In this math worksheet, students solve eleven math problems. Students solve the problems by using multiplication, division, subtraction, and addition.
Curated OER
Mental Math Blocks 3
In this math worksheet, students solve eleven math problems. These include finding the missing digits of an addition problem and solving a word problem about picking up pieces of trash.
CK-12 Foundation
Whole Number Exponents: Teddy Bear Box
Five questions—multiple-choice, fill in the blank, and discussion—make up an interactive that challenges scholars to mail a teddy bear using the smallest box possible without squishing it. A box with movable sides allows mathematicians...
Pennsylvania Department of Education
Multiplication Using Arrays
Explore the concept of multiplication by using arrays. Classmates use arrays to gain a better understanding of multiplication. They break arrays apart to model the distributive property of multiplication over addition. The relationship...
Curated OER
Adding and Subtracting Decimals
The addition and subtraction of decimals is a relatively simple process. The most important thing to remember is to have all of the decimal points lined up. This presentation gives that strategy, plus some others to use when performing...
Curated OER
Addition - What Are the Missing Numbers?
For this addition worksheet, students determine what the missing numbers are in 8 two digit addition problems; either finding the sum or an addend. They estimate and calculate each answer in 4 three and four digit addition problems.
Curated OER
Add Whole Numbers
In this addition worksheet, students solve 6 problems in which larger numbers will be added with carrying. These are story problems. Students write the number sentence needed and solve.
Curated OER
Equal Estimates- Decimals
In this decimal estimation worksheet, students estimate a set of addition and subtraction problems, rounding to the nearest whole number, then place each problem in the box that contains its estimated sum or difference.
Curated OER
Estimating Distance and Time
Pupils analyze a Cyberchase video to help them understand how to estimate the time it takes to travel distances. In this time lesson, students use ratiosand repeated addition to calculate how much air the characters in the video need...
Curated OER
Estimate Sums: Homework
In this estimating sums worksheet, students round each addend to the nearest ten using the number lines. Students then estimate the sum for each addition problem.
Curated OER
Estimate Sums
In this estimating sums worksheet, students solve 6 word problems where they estimate the sum of 3 digit numbers by rounding to the nearest 10, 100 or 1000.
Curated OER
Addition Words Alphabetical Order
In this alphabetical order worksheet, students read 12 words pertaining to addition. Students put the words in alphabetical order.