Curated OER
Addition Strategies: Compensation
For this math worksheet, students learn the addition strategy of compensation: adding an easy number like 10, 20 or 30 and then subtracting a very small number like 1 or 2. Students solve 12 problems on the page.
Curated OER
Multiply By A 2-Digit Number 1
In this multiply by a two-digit number worksheet, 4th graders multiply mentally twelve equations, calculate the answers to twenty two additional multiplication equations.
Curated OER
Adding Decimals with Hundredths
In this worksheet, students learn to add decimal numbers to the hundredths. Students first compare adding and subtracting decimals with the corresponding fractions in 6 problems. Then students add 35 decimal numbers mentally, filling out...
Curated OER
Domino Trick
For this domino trick worksheet, students solve and complete six different problems using domino's. First, they think of a domino and count the number of pips on the left side of the domino. Then, students multiply this number by 5 and...
Pennsylvania Department of Education
Links Away: Looking Back and Moving Forward
Young scholars explore fact families. In this math lesson, students use links to model a fact family. Young scholars solve addition and subtraction problems.
Curated OER
Rabbits
Learners review what they think doubling means and double numbers mentally, for example, 5, 12, 16. They share their solutions and discuss how they doubled. They work together on a problem that is beyond mental working and solve...
Curated OER
Balancing Act
Second graders identify the attributes of various shapes and estimate the weight of the objects. In this geometry activity, 2nd graders identify the attributes of concrete objects and use a pan balance to weight them.
Curated OER
How to Use the Distributive Property of Multiplication
Fourth graders evaluate the distributive property of multiplication. In this multiplication lesson plan, 4th graders discover how the distributive property makes problem solving faster. Students complete several problems demonstrating...
Curated OER
Patterns Here, There, and Everywhere!
Upper graders access the Microsoft Word program and create patterns by utilizing certain keys on the keyboard. They create picket fences, smiley faces, and hearts. It seems that this lesson has as much to do with keyboarding skills as it...
Curated OER
Basic Probability
Learners explore basic probability. In this Algebra II/Geometry lesson, students use modeling to solve basic probability problems involving real-life applications.
Curated OER
What You See Is What You Get
Students practice visualization as a strategy for reading and comprehending math word problems.
Curated OER
Whole Numbers
Student are assigned one of the sections on whole numbers. After reviewing the content, they teach their assigned sections to other class mates. They publish their findings on a PowerPoint slide show to use when they teach their section.
Curated OER
Some Number Tricks
In this number tricks activity, middle schoolers practice 4 number tricks. Students pick a number and perform various operations. Middle schoolers always end up with the same number.
Curated OER
Six numbers Trick
In this Algebra I/Algebra II learning exercise, students analyze the algebra behind a number trick involving consecutive numbers. The one page learning exercise contains one problem with an explanation of the algebra behind the...
Curated OER
Making Change
Second graders explore how to incorporate a new type of technology, the cash register and/or a calculator, as a motivational tool for solving real life problems. They practice estimating money and counting back change from $20.00.
Curated OER
Dividing by 3's
Third graders review and practice strategies for solving division problems. For this division by 3's lesson, 3rd graders play games, use an interactive whiteboard, create flashcards, and solve word problems.
Curated OER
Who Wants to Carry a Million?
Learners, in groups, determine the volume of a box large enough to hold a million dollars. They calculate the dimensions of a bill and the volume of the money.
Curated OER
One of Einstein's Favorite Puzzles
In this algebra learning exercise, students are given a word problem and asked to find the number that someone wrote down without telling the other person. They follow specific algebraic steps to arrive at their solution. There is an...
Curated OER
Recycling
Students relate recycling to waste reduction. In this science lesson, students talk about the environment and how recycling certain natural resources actually saves on energy. They also discuss what type of recycling causes...
Curated OER
Place Value
First graders practice place value by completing problems that allow them to group 10 items together to create groups of 10 and see what is left over. In this place value lesson plan, 1st graders use cups to put 10 items in them, and...
Math Salamanders Ltd.
Addition Up to 12 - Sheet 2
In this addition worksheet, learners complete a set of 20 problems, adding to the number 12. A reference website is given for additional activities.
Math Salamanders Ltd.
Addition Up To 12, Sheet 6
In this addition learning exercise, students complete a total of 24 problems, adding numbers to 12. A reference website is given for additional activities.
Math Salamanders Ltd.
Addition—Up to 12 Sheet 5
For this addition activity, students complete 24 problems, filling in missing numbers, either addends or sums. A reference website is provided for additional activities.
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