College Board
Team Problems in Computer Science
There is no I in team. Seven team problems provide classmates the opportunity to work with a partner on a task. Projects span the course and require pupils to apply their knowledge. Tasks range from writing the algorithm in English to...
Curated OER
Solar Kit Lesson #13 Solarize a Toy
Students work in teams they select a low-power toy, game, or electrical deive to "solarize," or convert to solar power. They determine the operating voltage of their chosen device and design a solar array to provide this level of...
Curated OER
Division with Dividends to 99
In this math activity, students find the answers to the following long division problems. The problems can have remainders.
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...
Teach Engineering
Solar Power
Elementary schoolers discover how engineers use solar energy to heat buildings. They take a close look at some of the materials used: sand, salt, water, and shredded paper and evaluate the efficiency of each material. An incredible...
Desert Discoveries
Conservation Cartoons
Learners read and create cartoons that are based on endangered and threatened species. The lesson is packed with terrific student handouts, including some very good cartoons that are based on conservation and animal issues. The...
Cold Spring Harbor Laboratory
Different Genes Are Active in Different Kinds of Cells
Personalized medicine prevents many trial-and-error scenarios when time counts the most. Learn how gene expression and screening genomes improves health outcomes in cancer patients, those with auto-immune disorders, and more. An online...
Curated OER
Fact Families Lessons
Have you ever tried using arrays to help you teach the fact families that go with multiplication and division? If not, you should read this article! Some excellent and easy-to-implement ideas are presented, along with some good lessons...
Curated OER
The Kennedy Administration
From his inaugural speech to the Bay of Pigs, major events concerning the Kennedy presidency are discussed. Slides provide an array of images and web links to highlight some of the bigger issues surrounding President Kennedy. The...
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
Partial Products
Students use the partial products algorithm to complete multiplication problems. In this partial products lesson plan, students are introduced to the algorithm and connect the relationship to multiplication and division problems.
Pennsylvania Department of Education
Multiplication Represented as Arrays
Third graders collect data about themselves and use in a line plot. In this analyzing data lesson, 3rd graders collect various sets of information,create a line plot and compare the data. Students complete a worksheet on their...
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
Multiplication Facts for 2,5, and 10
Students practice multiplying by 2, 5 and 10. In this multiplication lesson plan, students participate in a teacher demonstration lesson plan of grouping for multiplication or making arrays. They concentrate on two's in this lesson plan...
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
Positive and Negative Numbers
Pupils use blocks and markers to illustrate the processes of adding, subtracting, multiplying and dividing integers. In this mathematics instructional activity, learners use Algebra blocks to demonstrate multiplying polynomials.
Curated OER
Lengths, Areas and Shapes - Week 9
In this lengths, areas and shapes learning exercise, students explore overlapping and non-overlapping patterns. They identify the number of objects in a pattern, determine how the pattern may be folded to create additional patterns, and...
California Education Partners
Window Washers
Aim high with a task on window washers. An assessment task challenges learners to determine the number of windows two people wash. They do this using a given number of window rows on each side of a building. In addition, they find the...
Curated OER
Magic Wand
Students observe how an image falling on a CCD array is divided into individual pieces, by the property of persistance of vision.
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 lesson assess the student's understanding of the meaning of multiplication using an array model and manipulatives.
Curated OER
Solving Problems
Second graders become familiar with need strategies for computation of money problems and estimating sums. In this computation instructional activity, 2nd graders solve real life problems to understand estimation and money problems.
NASA
Mystery Planet
What can one learn about a planet based on a small surface sample? Learners will explore artifacts from a mystery planet and see what they can determine about the planet based on the evidence in front of them.
Curated OER
"One Hundred Hungry Ants" by Elinor J. Pinczes
Learners identify arrays and write multiplication and division problems to match. They write their own multiplication book using arrays.
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...