Curated OER
Subtraction-2-Digit Numbers, Sheet 4
In this subtraction learning exercise, students use subtraction facts to find missing numbers in problems. A reference web site is given for additional activities.
Curated OER
Estimation and Computation
Second graders practice their estimation skills using blocks. In this math lesson, 2nd graders explain how estimating makes addition easier. They complete a worksheet after the lesson to reinforce new learning.
Curated OER
Algebra Brackets
In this algebra brackets worksheet, students factor given equations. They multiply, divide, add, and subtract positive and negative numbers. This two-page worksheet contains 13 problems. Answers are provided.
Curated OER
Standard Written Method for Subtraction (2)
In this subtraction instructional activity, students learn how to solve decomposition subtraction problems with 2-digit numbers. They then solve 9 subtraction problems on their own. The answers are on the last page of the packet.
Curated OER
Subtraction Worksheet : Numbers to 19 (1 of 3)
In this subtraction worksheet, students find the differences to 53 horizontal and vertical subtraction problems. They work with numbers up to 19 and do not regroup while working.
PBS
Working with Common Denominators: Assessments
Now that the practice is over, see if young mathematicians can utilize their new skills on finding common denominators and adding fractions. The assessment contains one map challenge and follows with skills practice.
PBS
Working with Common Denominators: Activities and Supplemental Materials
Enjoy these straightforward and simple activity pages that practice with different denominators. The practice starts simple with adding fractions together and then works on a recipe that needs to be tripled.
Curated OER
Ten Frame
Students add numbers to ten. In this addition to ten lesson, students play the Ten frame interactive game to learn about addition and facts to number ten.
California Education Partners
John's Trip Disneyland
It all adds up to one. Pupils solve several items that involve finding sums of fractions in relationship to a whole. The assessment task uses fractions with unlike denominators to determine the amount of a tank of gas and the amount of...
Curated OER
Fantastic Fraction Fudge
In order to create some tasty fudge, learners must adapt a recipe. Using a recipe for fudge, ingredients must be correctly converted using fractions. If one fraction is incorrect, the fudge will reveal it! Although you will only make one...
Curated OER
The Golden Students
Scholars view the video, "Donald Duck in Mathmagic Land," and discuss examples in nature which have proportions of the golden ratio. They measure and record different body lengths from a worksheet and convert the ratios to equivalent...
Curated OER
Operations with Positive Fractions and Decimals
Explore the concept of fractions and decimals! In this fractions and decimals lesson, pupils use fraction tiles to express fractions. They play a fraction review basketball game where when a team gets a question correct they get to shoot...
Curated OER
Speeding By The Numbers
Students determine speed by running or walking a given distance and dividing the distance by the time it took them to do so. They record their average speed and compare it with the speeds of other moving objects.
Curated OER
The Magic of Algebra: Original Lesson Plan
Students participate in a teacher led math "trick." The teacher "reads the mind of the students. The answer to the problem is always 4, and by following the directions, the teacher can guess that students are thinking of Denmark, and...
Curated OER
Negative Numbers
Sixth and seventh graders investigate the concept of negative numbers. The lesson begins with a review of positive numbers and progresses to the various operations with negative numbers. The lesson includes dialogue for the teacher to...
Curated OER
Counting Back and Counting On
Read aloud your choice of books about counting on and counting back (a list is provided, or tell stories of your own). Your learners will write horizontal equations to portray what happens in the story. They build a paper chain and...
Curated OER
How Many Under the Shell?
Children discover basic addition and subtraction facts. They play an online game in which they practice addition and subtraction facts. This could be a perfect computer lab activity for your students to engage in.
Curated OER
Word Problem Exchange
Learners discuss elements of word problems: key words, data, computation clues, and unnecessary information and use the four steps of problem solving to find a solution and check for reasonableness.
Curated OER
How Simple Is Your Rational Expression?
Investigate simplifying rational expressions. Learners define rational expressions, review how numerators and denominators are polynomials and complete several problems using a checklist to ensure they don't skip any steps. Work can be...
Curated OER
You Can't Go Wrong with a Right Triangle 1
Fourth and fifth graders study the Pythagorean Theorem and apply it to find the missing side of a right triangle.
Curated OER
You Can't Go Wrong with a Right Triangle 2
Upper graders use the properties of right angle trignonmetry to measure objects such as the school flagpole. They solve real world problems using these properties.
Curated OER
Who Has More or Less?
Students practice adding and subtracting mentally and use the words more and less to describe whether they are adding and subtracting. They use cards to play this math game.
Curated OER
The Take-Awar Bar 1
Students use an Internet tool, "The Take-Away Bar" to solve subtraction problems by breaking them into parts. They write and solve comparison problems. Students make sensible estimates and check the reasonableness of answers. They use...