Illustrative Mathematics
“Crossing the Decade” Concentration
Young mathematicians concentrate on learning to fluently count. Following the rules of the classic game Memory, children take turns flipping over cards in order to find pairs of numbers that cross a decade (e.g. 29 and 30). For younger...
Illustrative Mathematics
Counting Squares
Challenge young mathematicians' understanding of squares with this geometry puzzle. The task is simple, identify as many squares as possible in a 3x3 array. Allow learners to work independently or in pairs as they search for squares,...
Virginia Department of Education
Arithmetic and Geometric Sequences and Series
Examine the importance of sequence and series through contextual situations. Here, learners partake in a five-day unit that begins with the basics of arithmetic and geometric sequences and series. As it progresses, pupils apply the...
Yummy Math
Sweethearts Candy
Sweethearts® candies are a beloved Valentine's Day treat—so much so that eight billion hearts are produced every year around the world! Learners use number sense reasoning and critical thinking to solve nine word problems about the...
Curated OER
Adding Objects In Rectangular Arrays
These word problems have children use the provided images to solve word problems by adding objects in rectangular arrays. Use the raw material here, but edit the grammar and wording in the problems.
Curated OER
Multiplication of Whole Numbers
Multiplication facts should be more than memory; help scholars understand what happens when they multiply using visual math. They examine three arrays of images and choose the multiplication equation that corresponds numerically. Then,...
Curated OER
"Just Cruising"
Practice writing the same number sentence in a variety of ways. Learners will explore math cruise ship problems to write equivalent sentences. Then complete word problems which have been included in multiple languages.
Curated OER
Study Buddies: Exploring Arrays
In this math worksheet, students will work with a coach to solve a story problem by making an array. Students will follow a step-by-step process and notes are provided for the coach.
Math Salamanders Ltd.
Understanding Multiplication Using Arrays
In this multiplication array learning exercise, students change a set of 2 arrays into multiplications, then draw three groups of seven circles, multiplying seven times three and adding seven three times.
Math Flix
MathFLIX Challenge: Multiplying and Dividing Fractions
First, math majors compare the multiplication and division of unit fractions and whole numbers. They look for patterns, and then apply their knowledge to an array of multiplication and division problems, all involving fractions and...
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,...
Curated OER
Multiplication & Division with Arrays
Third graders work with fact families using the commutative property, arrange arrays with manipulatives, and multiply and divide symbolically with numbers.
Helping with Math
Multiplication: 2-digit x 2-digit
Number crunchers sharpen their math skills as they solve 30 problems requiring them to multiply two-digit numbers by two-digit numbers. Assign this as homework or use it as an assessment after practicing the skill together in class.
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...
Curated OER
Array Bingo
Students recognize patterns in arrays and repeat these patterns back to the teacher. They determine and tell the teacher the total number of squares in the array based on the pattern they recognize.
Virginia Tech
Unit Plan: Exponential and Logarithmic Functions
A six-day unit for algebra II on exponential and logarithmic functions builds upon Chapter 12 of Merrill Algebra II with Trigonometry; Applications and Connections. The text provides assistance in the depth of instruction...
Curated OER
Equal Groups of 5 practice 19.7
In this dividing by five worksheet, students use arrays to write division sentences and solve a word problem. Students write answers to five problems.
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 worksheet.
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...
Curated OER
Can You Measure Up?
Here is a well-designed lesson on common standards of measurement for your young mathematicians. In it, learners calculate measurements in standard and non-standard units. They make predictions, record data, and construct and design...
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
Multiplication Strategies - A Day at the Zoo
This is an amazing 33-page resource for teaching multiplication! Your mathematicians will discover the connection between multiplication and repeated addition. They also will work collaboratively with arrays while studying zoo animals....
DK Publishing
Finding 5 - Multiplying by 5
Visualize multiplication facts using rectangular arrays. Scholars multiply single-digit factors by five and represent each number sentence using sets of dots. They circle the groups of five and fill in missing parts of the equations....
Curated OER
Picture Board
Learners divide a poster board so everyone gets the same amount of area to decorate. Youngsters talk about the different ways to divide a rectangle. They measure their lines to make sure that each piece is equal and then decorate their...