Curated OER
Adding and Subtracting Algebraic Expressions (Combining Like Terms)
Everyone loves math when it includes food! This lesson tries to take the notion of combining like terms in algebra and comparing it to sorting apples and oranges. It takes a step-by-step approach to helping students understand this...
Curated OER
More or Less Pigs in the Pen
Kindergarteners practice basic addition and subtraction. In this math lesson, students sing a song about pigs on a farm to help them understand the concept of adding and subtracting things together. Some excellent extension activities...
Curated OER
Counting Seeds
Students practice skip counting strategies, estimation, and higher number addition. They estimate the number of seeds in bell pepper, and count seeds in groups of tens and ones after the teacher removes seeds from the pepper.
Curated OER
Activity 2: Disappearing Drainage - the Incredible Shrinking Everglades Watershed
Students examine drastic changes in Florida Everglades watershed, compare and contrast two watershed maps, discuss effects of addition of agriculture, loss of wetlands, and introduction of Water Conservation Areas, and predict condition...
Curated OER
Positive and Negative Numbers
Pupils use blocks and markers to illustrate the processes of adding, subtracting, multiplying and dividing integers. In this mathematics lesson, learners use Algebra blocks to demonstrate multiplying polynomials.
Curated OER
How Many Cans of Juice?
Use something familiar to students in this word problem; juice! They examine a scenario in which two summer campers each bring a certain number of juice cans to camp, finding the total number of cans they have together. Pictures give...
Curated OER
Area Applet
Elementary math classes calculate the area of a shape and explain the correlation between the size of the perimeter and the areas that can be contained within that perimeter. They also explain the effect the shape of the perimeter has on...
Curated OER
Measure: Perimeter, Area and Volume
Learners practice measuring with formulas. In this measurement lesson, students complete an activity that requires them to calculate perimeter, area, and volume.
Curated OER
Number Line Snacks: Compare Numbers to 10
Kindergarteners put Cheerios or cheddar fish on two number lines (up to 10 each) and identify which number the snack pieces indicate. They compare numbers after eating a few of each snack, and get an introduction to addition and...
Curated OER
Adding & Subtracting Fractions and Mixed Numbers
For this pre-algebra addition and subtraction of fractions and mixed numbers worksheet, students add or subtract fractions in the first 10 problems. They write the answers in simplest terms. They add or subtract mixed numbers in the last...
Curated OER
Identify Coins
Kill two birds with one stone (as they say). Your class can practice problem solving skills, basic addition and subtraction, as well as work on coin values. This worksheet includes six money related word problems to solve.
Curated OER
Write and Solve Equations
Here is a problem solving worksheet in which learners read six story problems. They write an equation and then solve the problem. Basic addition and subtraction will be used.
Curated OER
Maps and Modes, Finding a Mean Home on the Range
Fifth graders investigate data from maps to solve problems. In this data lesson, 5th graders study maps and collect data from each map. Students present their data in a variety of ways and calculate the mode, mean, median, and range.
Curated OER
Adding and Subtracting Integers
Seventh graders review the concept of integers and how to combine them. They use the number line in different situations for the visual needed to see how adding can be done. Then students practice with numerical expressions.
Curated OER
Family Names
In this fact family worksheet, students examine a blank math cube with 10 squares. Students color some cubes red and some blue, then write a fact family for the numbers.
Curated OER
Divide by a Fraction
In this dividing by fractions practice worksheet, students sharpen their problem solving skills as they solve 6 story problems.
Curated OER
Child's Play II: Loteria Game
Students use flashcards to memorize the Spanish words for numbers. In groups, they write and solve addition, subtraction, multiplication and division problems. They play another round of the game in which they can only give the problem...
Curated OER
Modular Mathematics
Students are introduced to modular mathematics. They start by making clocks for different bases. They use their clocks to count, using the base, and then finding the mod or remainder. They explore both positive and negative numbers with...
Curated OER
What Is Money?
Young scholars discuss the difference between earned and unearned income. They use addition, subtraction, multiplication, and division (with whole numbers, fractions, decimals and/or percents, mixed numbers) to solve real-world math...
Curated OER
Algebra: Brackets
Students review and practice negative numbers, rules of signs and of brackets that include addition, subtraction, multiplication and division. Included in this instructional activity is polygons and expanding brackets. Mastery of...
Curated OER
Savings
Students investigate the different ways to save money and the reasons for doing so. They use addition, subtraction, multiplication, and division (with whole numberrs, fractions, decimals, and/or percents, mixed numbers) to solve...
Curated OER
Making Choices
Students determine that limited resources require choices. They study the basic concept of a budget and use addition, subtraction, multiplication, and division (with whole numbers, fractions, decimals and/or percents, mixed numbers) to...
Curated OER
Word Clue and All About Me Problem Solving
Fifth graders practice solving word problems using highlighted strategies. In this word problem lesson, 5th graders brainstorm and use words as clues that indicate the math operations that will be used to solve problems. They use the...
Curated OER
Positive and Negative Integers: A Card Game
Young scholars play an integer card game similar to the game "Twenty-five." In this integer lesson, students use addition and subtraction cards to identify integers as positive or negative.