Pennsylvania Department of Education
Comparing Sets
Students count back with cubes to model subtraction problems. In this subtraction lesson plan, students compare sets of problems and record their results in a table.
Curated OER
The School Store
Young scholars choose between the operations of addition or subtraction to solve a real life problem. In this addition and subtraction lesson, students make a chart of items sold in the school store. Young scholars then work in teams to...
Curated OER
Number Base Clocks
Students investigate place value in base ten. In this number sense lesson plan, students participate in an online lesson plan at www.shodor.org/interactivate/activities/NumberBaseClocks and demonstrate how to convert numbers from base...
Curated OER
Two-Digit Subtraction
Second graders identify two-digit numbers, and solve two-digit subtraction problems.
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Casting Out Nines
Students identify division problems with no remainders. In this division lesson, students learn to decipher division problems using addition and subtraction to determine if the problem will contain a remainder.
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Popsicle Stick Regrouping Fun
Students demonstrate regrouping in subtraction. In this math computation lesson, students use popsicle sticks to practice the regrouping strategy. Students practice several examples of regrouping problems in small groups.
Curated OER
Finding Addition Patterns
Students practice finding the sums of two-one digit numbers. In this addition lesson plan, students also record facts onto an addition chart.
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Subtraction two-digit
Second graders identify two-digit numbers, learn value of giving, solve two-digit subtraction problems, and experience giving.
Curated OER
Less is More: Subtraction in Action
Students participate in group games to help review the concept of subtraction. During the games, they practice subtracting two-digit numbers and the concept of borrowing. They review their answers with the class and move on to...
Pennsylvania Department of Education
Using Multiplication to Solve Word Problems
Fourth graders solve word problems using multiplication. In this multiplication lesson, 4th graders write and solve word problems using their prior knowledge of multiplication.
Curated OER
Multiplication Strategies and Writing Story Problems
Third graders model multiplication problems using Unifix cubes. They compute and solve problems involving addition and subtraction of 3- and 4- digit numbers and basic facts of multiplication and division. They practice mental math...
Curated OER
Two Digit Subtraction With Regrouping
In this math literacy worksheet, students practice solving problems while focusing on the skill of subtraction with the challenge of regrouping.
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...
Curated OER
Dividing by 3's
Third graders review and practice strategies for solving division problems. In this division by 3's lesson, 3rd graders play games, use an interactive whiteboard, create flashcards, and solve word problems.
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Dividing by 4's
Third graders explore math functions by completing problem solving activities. In this division lesson, 3rd graders utilize the division strategies acquired earlier to divide multiple digit numbers by 4's. Students complete problems on...
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Mystery Math
Here is an interesting "trick" your young mathematicians can perform. They are taught how to find any number's "digital root," by following a set of detailed instructions. The process works for any number, and is the type of math puzzle...
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Subtracting with Regrouping
Second graders explore math functions by completing a worksheet in class. In this subtraction lesson, 2nd graders identify the techniques used to assist in subtracting multi-digit numbers. Students complete a subtraction worksheet and...
Curated OER
Chart Trivia
Learners practice addition and subtraction problems and answer questions using greater than and less than. They chart information to create a graph on the computer.
NTTI
Putting Together Ten
Groups explore sets of 10 items in two varieties (i.e. 3 white buttons and 7 black ones, or 5 bears and 5 bunnies). They brainstorm about their objects, write math sentences to represent what they have, and report their discoveries...
Curated OER
Ten Sly Piranhas: A Counting Story in Reverse
Students solve related addition and subtraction problems. In this addition and subtraction lesson, students use the book Ten Sly Piranhas by William Wise as the source of word problems for students to solve.
Curated OER
Musical Math
Learners play a game of mathematical musical chairs, moving from desk to desk solving addition and subtraction problems.
Curated OER
Equal Additions
Students explore the relationships between numbers through the use of "equal addition" and "equal subtraction." Through the use of number sense, they are able to computer addition and subtraction problems mentally. Individually,...
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The Number Partner
First graders study number pairs and identify number pairs that sum to numbers from 10 to 30. They use number pairs to solve addition and subtraction problems. They make sensible estimates and check the reasonableness of answers.
Curated OER
Dinosaur Math
Second graders practice vocabulary related to measurement, mathematics, and dinosaurs. Using the engaging topic of dinosaurs, learners will calculate various information about dinosaurs and use measurement vocabulary. They will also...