Curated OER
students rotate through four workstations that reinforce the concept of symmetry
Second graders, in pairs, use arrays to explore the relationship between multiplication and division.
Curated OER
The Commutative Cookie
Third graders investigate the commutative properties of multiplication and focus upon the setting of cubes in the correct patterns to solve problems. They differentiate between numbers that have multiple factors and prime numbers....
Curated OER
Prime and Composite Numbers
Fifth graders use prime factorization to identify prime and composite numbers. They use cubes to find factors. In groups, 5th graders draw rectangular arrays to discover prime numbers under 100.
Delaware Math Cadre Elementary Committee
Operations and Algebraic Thinking
How to use the relationship between multiplication and division to solve math word problems is the focus of the lesson presented here. In it, fourth graders work in groups to solve problems posed by the teacher. Then, each group is given...
Curated OER
Division with Dividends to 99
In this math worksheet, students find the answers to the following long division problems. The problems can have remainders.
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.
Curated OER
Remainder of One
Fifth graders are introduced to division and remainders. In groups, they are given a set of cubes and read the story a "Remainder of One". While reading the book, they use the cubes to represent the equations mentioned. To end the...
Curated OER
Making Equal Groups
In this making equal groups worksheet, learners, working with a partner, study and calculate how to make equal groups through six word problems.
Illustrative Mathematics
Comparing Products
How can 5th graders show understanding that 30 x 225 is half of 60 x 225 without completing the computation? They can use an area model and draw it out. An array, or an open array, is an area model that allows for young learners to...
Curated OER
Multiplication Facts for 2,5, and 10
Students practice multiplying by 2, 5 and 10. In this multiplication instructional activity, students participate in a teacher demonstration instructional activity of grouping for multiplication or making arrays. They concentrate on...
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...
Curated OER
Unit 2 Sun & Stars
Students describe stellar objects using terms such as stars, planets, satellites, orbits and light. In this sun and stars unit, students research stellar objects through seven individual lessons discovering star characteristics, how...
Curated OER
Long Division
Fourth graders acquire number sense and perform operations with whole numbers, simple fractions, and decimals.
Curated OER
Prime Numbers and Factors
Students determine factors of numbers to 100 and identify prime factors; students differentiate prime and composite numbers by the factors of the numbers.
Pennsylvania Department of Education
Equal Groups
Students explore statistics by completing a graphing activity. In this data analysis lesson, students define a list of mathematical vocabulary terms before unpacking a box of raisins. Students utilize the raisins to plot data on a line...