Curated OER
Discovering Math Rational Number Concepts
Students research Egyptian hieroglyphics using print and Web resources. THey discuss Egyptian achievements in mathematics. Students explore how Egyptians used hieroglyphics to write numerals. They multiply and divide numbers using the...
Curated OER
Grade 3: Make a Hundred
Third graders roll a die seven times, each time determining whether to add that number of tens or that number of ones to try to make a sum as close to 100 as possible without going over.
Curated OER
Addition Facts With Sums to 18
Students explore addition facts with sums to 18. Using Unifix cubes, students demonstrate addition sentences. They use a variety of manipulatives to illustrate addition facts for different sums. Students participate in a flash card game...
Curated OER
Adding Two- and Three-Digit Numbers
For this adding two- and three-digit numbers worksheet, students, with a partner, problem solve and calculate the answers to eight mathematical word problems and equations.
Curated OER
Pattern Puzzles
A short video introduces place value in addition and subtraction. As a class, your students identify all even numbers up to one hundred and explain the pattern. They use addition strategies to fill in the missing numbers on the number grid.
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,...
Curated OER
Mental Math
Young scholars participate in an online computation game. In this computation lesson, students practice simple computations and use an internet site to review addition and subtraction facts.
Curated OER
Multiplication: Bugs Can Multiply, So Can I!
Develop multiplication skills with your class. Youngsters will visualize multiplication as repeated addition. Then they will create a multiplication bug book and discover arrays as a strategy for multiplication problem solving....
Primary Junction
Adding Tens
Build on your learners' confidence in quick addition as they discover strategies to add tens to two-digit numbers. After reviewing counting by 10's, they discuss tactics to add multiples of 10 to other numbers. They visualize how to...
Curated OER
Smiling at Two Digit Multiplication!
How do I solve a two-digit multiplication problem? Your class tackles this question by walking through problem solving methods. They first investigates and applies traditional multiplication methods, and they then compare those with...
Curated OER
Solve Story Problems: Sold! A Mathematics Adventure
Young mathematicians listen to the book Sold!: A Mathematics Adventure by Nathan Zimelman where they encounter ways to solve story problems. They then create and solve start unknown addition and subtraction equations. Resource builds in...
Curated OER
Fraction Facts
Students explore the concept of fractions. In this fractions instructional activity, students perform basic operations such as addition and subtraction with fractions. Students play a game on the computer called 'Fraction Four' that...
Curated OER
Subtracting Two- and Three-Digit Numbers
In this subtracting two- and three-digit numbers worksheet, students, with a partner, problem solve and calculate the answers to fourteen subtraction equations.
Curated OER
Money Subtraction (C)
In this subtracting money worksheet, young scholars enhance their subtraction skills by subtracting the monetary amounts in increments of 10 cents. Students solve 20 problems.
Curated OER
Money Subtraction (D)
In this subtracting money worksheet, students enhance their subtraction skills by subtracting the monetary amounts in increments of 10 cents. Students solve 20 problems.
Curated OER
Velocity of Traffic on Highway 26
Physics fanatics time five cars as they pass on the highway. They use the times and a 20-yard distance to calculate velocity. They also graph distance vs. time. A page of student pre-lab questions is provided in addition to the activity...
Alabama Learning Exchange
Pizza! Pizza! Pizza!
Fifth graders practice using money in everyday situations. They use their addition and subtraction skills as they work in cooperative groups to solve problems involving decimals.
Curated OER
Fraction Facts
Students are introduced to fractions, including operations with fractionsm converting fractions to decimals and percents. They are provided with activities that provide ample practice opportunities to reinforce the information from the...
Curated OER
Two-Digit Subtraction With Regrouping
Learners practice their subtraction skills by solving 2 digit subtraction equations the teacher lists on the board. For this subtraction with regrouping lesson, students use the regrouping method to solve the 2-digit subtraction equations.
Curated OER
Adjusting the Quotient
Fourth graders use number facts to estimate quotients. In this division lesson, 4th graders examine long division problems to determine which multiple of ten will help them determine a number that is close to a quotient. They adjust the...
Pennsylvania Department of Education
Links Away: Looking Back and Moving Forward
Students explore fact families. In this math lesson, students use links to model a fact family. Students solve addition and subtraction problems.
Pennsylvania Department of Education
What Balances?
Young scholars explore another meaning of subtraction as it pertains to the inverse of addition. In this what balances lesson, students identify the concept of subtraction as a balance. Young scholars use subtraction facts to generate...
Curated OER
"Subtraction Bowling"
Students experience the math concept of subtraction without regrouping. They practice subtraction bowling to work on their basic subtraction skills. Each student demonstrates mastery of the addition and subtraction facts, the meaning of...
Curated OER
Combining Foods
Students explore addition. In this math lesson, students discover how addition and subtraction are related. Students model related addition and subtraction facts.