Curated OER
Don't Eat the Crayons: Real-Life Multiplication
Third graders use items which come in sets to look for real-life multiples and write multiplication problems. This instructional activity assess the student's understanding of the meaning of multiplication using an array model and...
Curated OER
Multiplication Versus Addition
Second graders create arrays to study multiplication. In this multiplication lesson, 2nd graders split into teams to complete a multiplication table. One team uses addition to solve the table while the other uses multiplication. Students...
Curated OER
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...
Curated OER
Hooked On Problem Solving
Fourth graders use properties of operations and problem-solving strategies to do mental calculations, and look for patterns in the solutions. They create an array, using each of the digits 1-9 exactly once to form addition problems...
Curated OER
Multi-Digit Multiplication
Fourth graders practice mastering the ability to multiply multi-digit numbers utilizing rectangular arrays and a variety of mental math strategies. They model and illustrate meanings of multiplication and division of whole numbers and...
Curated OER
Multiplication: Building Models, Representations and Explanations
First graders explore multiplication concepts through skip counting, repeated addition and arrays. Using animal characteristics as a context, 1st graders solve problems using mathematical tools such as hundreds charts, number lines, ...
Curated OER
Number Theory - Week 12
In this number theory worksheet, students study integers and their properties. They explore the Fibonacci Sequence and approximate irrational numbers. This two-page worksheet contains eight problems.
Curated OER
Fractions of Fractions
Fourth graders use an online tool entitled the "Fraction of Fractions" tool to examine how to find a fraction of a fraction. They apply the array tool to problem solving situations. They complete paper folding activities in which they...
Helping with Math
Multiplication: 2-digit x 2-digit - no regrouping
For those who are just starting out with multiplying multiple digits, this is an appropriate assignment. No regrouping is required as mathematicians find the product for 30 different problems. Answers are provided.
Curated OER
Arrays Hooray
Second graders write and solve story problems which involve whole numbers, using addition, subtraction, multiplication, or division. They solve multiplication problems by using strategies other than counting all. They interpret and solve...
Curated OER
Long Division in Two Digits
In this math worksheet, students find the solutions to the problems for long division. The answers can be shown in the printable version.
Discovery Education
Sonar & Echolocation
A well-designed, comprehensive, and attractive slide show supports direct instruction on how sonar and echolocation work. Contained within the slides are links to interactive websites and instructions for using apps on a mobile device to...
Curated OER
Patterns on a Multiplication Table
In this multiplication tables worksheet, students solve 5 problems in which a multiplication table is analyzed. Students write true or false for each statement and give an example to support each answer.
Curated OER
Number in Geometry
Learners use a number line to assist with their additions. They use a calculator to check for factors. Students are taught factors and multiples. They use array model of multiplication to define meaning. Learners develop a wide range of...
Curated OER
Division: 4-Digit by 2-Digit
In this division learning exercise, learners complete 18 problems, dividing 4 digit numbers by 2 digit numbers. Worksheet includes link to answers and additional worksheets.
Curated OER
Division: Three Digit by Two Digit
For this division problem, students solve for the quotients in 24 three digit by two digit division problems. They use the long division method to find each quotient.
Curated OER
Square Numbers
Fourth graders use square tiles to help them explain the concept of square numbers.
Curated OER
Prime and Composite Numbers
Sixth graders inspect prime and composite numbers. Using graph paper, they draw as many different shaped rectangles as possible. They use the dimensions of the rectangles to discuss prime and composite numbers. Students create a chart...
Teach Engineering
How Antibiotics Work
Take two pills and call me in the morning. The first lesson in a short unit of four introduces class members to delivery methods of medicines. The instruction introduces the question of which delivery method is best to get you feeling...
Curated OER
Animal Babies
In this animals learning exercise, learners play a matching game much like the game memory where they match the animals to their babies. Students match as many cards as they put out.