Curated OER
Number Story Arrays
Use these number story cards to give scholars practice with arrays and number models. There are 12 cards here, each with a simple object scenario for learners to apply mathematically. Mathematicians are given the number of rows and how...
Illustrative Mathematics
Counting Dots in Arrays
Mathematical arrays can represent several different math skills, including counting groups, multiplication, and even area. In this specific task, learners are asked to identify the addition equations that are equal to a 3 x 4 array....
K12 Reader
Using Arrays for Multiplication
Using arrays for multiplication is the subject of a two-part reading comprehension worksheet that asks kids to first read a short passage about arrays and then to respond to a series of questions based on the text.
Curated OER
Study Buddies: Relating Multiplication And Division
These acitivities are designed for two! With a partner, problem solve and calculate the answers to fifteen word problems or mathematical equations. Scaffolding and coaching are included, and as an extension learners are prompted to...
Curated OER
Multiplying in Any Order
Learners use an array model of multiplication to solve four fill in the blank multiplication problems. A very nice math learning exercise.
Curated OER
Hands On: Arrays and the Commutative Property
In this multiplication worksheet, students learn to use arrays when solving multiplication problems. Students also use the commutative property to solve the problems. Students solve six multiplication word problems using arrays and the...
Curated OER
Number, Number Sense and Operations: Worksheet Four
Review a variety of mathematical skills with this worksheet. In this number sense and operations worksheet, learners solve 15 different problems that include simplifying various equations. In addition, they write the powers in order from...
Howard County Schools
Exit Ticket 3.MD.5
Intended for use as an exit ticket, this learning exercise can be used as an extension to a lesson, test, or even homework. Learners complete three tasks that involve finding the area of a figure in square units. Young mathematicians can...
Curated OER
Multiplying in Any Order
In this mathematics worksheet, 2nd graders use counters to show an array. Then they write the multiplication fact for that array. Students also identify if the reverse of a multiplication fact is equal and explain why.
Curated OER
Multiplying Decimals
In this mathematics worksheet, 6th graders estimate the product and use an array to help them find the product. Then they find the exact product and locate where to put the decimal point in each.
Curated OER
Multiplying by Two-Digit Numbers
In this mathematics worksheet, 6th graders find the product of a given equation. Then they use an array and find the sum of the partial products. Students also use zeros as place holders when necessary.
Curated OER
Mathematical Wackie Wordies
In this word worksheet, 9th graders examine pictures and write a mathematical phrase to describe the picture. This one-page worksheet contains 25 problems. Answers are provided.
Curated OER
Choosing a College
How can mathematics help scholars choose a college? High schoolers learn how they can use decision matrices to rank colleges based on selected criteria. They also see how to weigh criteria using multiplication of the decision matrix by a...
Curated OER
Halves, Thirds, and Sixths
An excellent activity that effectively pulls together the concepts of area, fractions, and equivalent fractions! Using 3x2 rectangular arrays, 3rd graders are introduced to the concept of area in terms of square units. Building on this...
Teach Engineering
Ice, Ice, PV!
Knowing the temperature coefficient allows for the calculation of voltage output at any temperature. Groups conduct an experiment to determine the effects of temperature on the power output of a solar panel. The teams alter the...
EngageNY
Writing Division Expressions
Express division using different expressions. Individuals learn to write division expressions both with and without the division symbol in the 13th lesson of a 36-part series. They consider both numerical and algebraic expressions...
Curated OER
Real-Life Problems
There's a party going on! Learners examine an image of a birthday party and answer 10 analysis questions. They employ a variety of math skills including telling time, days of the week, division, subtraction, multiplication, addition,...
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
Shapes and Their Insides
Learners follow a series of instructions for drawing and coloring different shapes in order to learn the difference between the perimeter and area of a polygon. Then they are asked to find the perimeter and area of a 3x4 rectangular...
Clean Up Australia
Why are Batteries Harmful to the Environment?
Open this lesson by reading together about primary and secondary batteries (such as nickel-cadmium cells), problems they can cause in the environment, and how humans can minimize the damage. Afterward, little ones examine a collection of...
Curated OER
Mathematics Teacher September 2002
In this algebra lesson, students analyze and play with a trimagic square. They play a game through addition and squaring and cubing.
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
Multiplying Three Numbers
In this multiplying three numbers worksheet, learners, working with a partner, problem solve and calculate the answers to eighteen word problems or mathematical equations involving multiplication.
Curated OER
A Tour of Jaffa
Use the age-old Traveling Salesman Problem to introduce Hamilton circuits to your young travelers. Individuals then plan an efficient route to visit all the places they want to go.