Curated OER
Odd or Even?
There are multiple objectives at play here as scholars solve addition and subtraction problems and determine whether the sums and differences are odd or even. As they solve these, encourage pupils to observe patterns. What happens when...
Curated OER
Putting the Pieces Together
Children explore fractions on a conceptual level by making individual quilt squares. Each student works with small paper swatches to divide them into pieces that represent a given fraction. The class is then separated into groups and...
Curated OER
Lesson Design Protocol: Add and Subtract
Addition and subtraction are studied in this math lesson. Upper graders add and subtract whole numbers up to 1,000 with and without regrouping.
Curated OER
Adding in Our Heads
A good presentation on adding two-digit numbers. Learners are shown how to partition the numbers before trying to add them in their heads. A frog is the featured teacher of the PowerPoint, and he leads viewers through many problems and...
Curated OER
Addition
Each of these addition equations involves two addends that are multiples of 10. Although there isn't any regrouping necessary, some of the sums are three-digit. The first 16 of these 28 equations are vertically oriented and the second 12...
Willow Tree
Number Properties
The number of basic algebraic properties can become overwhelming for learners. A activity explains and gives examples for all the basic algebraic properties. The resource is perfect to use as a way for pupils to organize...
Helping with Math
Addition: Number Bonds to 20
Pupils fill in the missing addend to an addition problem that adds up to 20. This number could be a one-digit or two-digit number. They complete a total of 41 missing addend problems. Answers are available.
Illustrative Mathematics
Mixed Numbers with Unlike Denominators
There is more than one way to add mixed numbers. This learning exercise asks 5th graders to find and record two ways. The purpose is to help pupils realize there are different ways to reach a common solution in math. The two most common...
Curated OER
Fractions Forever!
Middle schoolers identify proper, improper fractions, and mixed numbers. They reduce fractions to their lowest terms. They add and subtract fractions with different denominators, and multiply and divide fractions, as well as...
Curated OER
Crabby Math
Here are 4 different (yet related) worksheets and an answer key for each. The class will work through each sheet, adding single-digit number to find sums. They then color in the sums that meet each worksheets instructions. For example:...
Curated OER
Multiplying by 10
Multiplying by 10 is simple, but do your scholars know the trick? They look at four examples; if you haven't learned this yet, see if they notice a pattern in these answers. They multiply 70 numbers by 10. Most are two-digit, but a few...
Curated OER
Decimal Addition
Practice adding decimals by completing 26 practice problems. Scholars examine two examples before trying these on their own. They add two and three-digit numbers with decimals, regrouping when needed. Not all numbers have decimals, but...
Curated OER
That's The Way the Cookie Crumbles
Third graders work with money values and making purchases. In this money lesson, 3rd graders listen to Donna Guthrie's book, Real World Math: Money and Other Numbers In Your Life. They make money cookies either with a recipe or with...
EngageNY
Scientific Notation
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...
Royal Society of Chemistry
Sub-shells
Is your class in a quandary over quantum numbers? Change things up by adding games to the mix! Science scholars discover the shape, number of electrons, and number of orbitals in the s, p, and d sub-shells using an interactive.
Curated OER
Everyday Problems with Decimals
Review word problems and decimals with a worksheet that features everyday problems for your students to solve. Six problems provide space for both work and the solution, reinforcing the importance of showing one's work in word problems....
Meadows Center for Preventing Educational Risk, University of Texas at Austin
Lesson 10 - Compound Words
Individually, words have power, but when added together, they can take on a whole other level of meaning. Readers learn about compound words in the 10th of 17 lessons of the Word Recognition and Fluency series. A script provides guidance...
Curated OER
Adding 3 to a Single Digit
In this adding 3 worksheet, students solve ten problems in which the number three is added to a single digit number. The problems are in horizontal format.
Curated OER
Adding 6 to a Single Digit
In this adding 6 worksheet, students solve 10 problems in which the number 6 is added to a single digit number from 0 to 5. Problems are in a horizontal format.
Curated OER
Adding 3 to a Single Digit
In this addition worksheet, students add the number 3 to 10 single digit numbers. Students put their answers in the boxes provided.
Curated OER
Count on Whole Tens
In this counting worksheet, students complete a set of 5 problems, adding a "whole ten" number to a 3-digit number, then complete 6 additional problems, adding 90 to given numbers.
Curated OER
Two Digit 4
In this addition worksheet, 4th graders add twenty-five double digit numbers together ranging from eleven to forty-eight. Students write their answers on the worksheet.
Curated OER
Two Digit Addition with Regrouping
Young scholars explore the concept of "regrouping." In this 2-digit addition with regrouping lesson, students create visual representations of combinations that equal ten using a tens frame. Young scholars use manipulatives to represent...
Curated OER
Factor Fun for Fifth Graders
Fifth graders explore common factors. For this factorization lesson, 5th graders discover the greatest common factor among two numbers in a game format. Students build on previous knowledge to determine the greatest common factor.