Curated OER
Similar Right Triangles-Introductions to Trigonometry
In this geometry instructional activity, students examine similar right triangles as the basis for the foundation of trigonometry. Students define the basic trigonometric functions and use a calculator to find the trigonometric value of...
Curated OER
Science and Math Lab (Students Look at Symmetry in Nature)
Students study patterns. In this symmetry in nature lesson, students examine objects to determine what type of symmetry they have. They work in small groups to rotate through stations that have objects for them to study.
Curated OER
Math: Arcs and Chords
Learners draw diagrams demonstrating how it is possible to two central angles to be congruent and their minor arcs are not congruent. In groups, they illustrate theorems with their constructed circles, create diameters of circles that...
EngageNY
Symmetry in the Coordinate Plane
The 17th installment of a 21-part module investigates symmetry in the coordinate plane. After plotting several examples, scholars develop a rule for the coordinates of a point after reflecting over the x-axis, the y-axis, or both.
Curated OER
PowerPoint: Long Division with 2-Digit Divisor
This long division PowerPoint presents a pneumonic device in which the first initial of generic family members names corresponds with the first initial of the proper steps to follow when solving a long division problem with a two-digit...
DK Publishing
Using the 2 Times Tables, Part 2
Put on a happy face! Third graders master the two times table with the help of a worksheet that prompts them to match groups of happy faces with corresponding numbers. The catch? Each happy face represents two faces! A great way to...
AJ Reynolds
Unit 5 Section 2: Measuring Angles
An interactive assignment displays two example angles to teach how to measure them. When you click on the angles, a protractor appears! As practice, learners view a set of angles, estimate the size of each, and then enter the degrees in...
Curated OER
Folding strips of paper
Fifth graders need concrete experiences to introduce a unit on multiplying fractions by fractions. A strip of paper is used to create a number line and represent 5/6. It is folded first in half, and then in quarters. After unfolding,...
Illustrative Mathematics
Christo’s Building
Hook your charges on how to solve a real-world art problem with mathematics by showing works of Christo. You can find eye-catching images on the Christo and Jeanne Claude webpage. Here, math learners help Jean Claude and Christo prepare...
Fuel the Brain
Pumpkin Concentration- Doubles Addition
This activity is print-out ready for when your learners need to practice doubles addition. A template provides the cards, which can be laminated and used throughout the year. Partners flip over cards to try and match the equation (1+1,...
Massachusetts Department of Education
Similarity through Transformations
Create the ultimate miniature golf course. The 93-page model curriculum unit from the Massachusetts Department of Elementary and Secondary Education contains nine lessons on understanding similarity in terms of both Euclidean geometry...
Curated OER
Reinforcing Alphabet Names/Sounds
Getting comfortable with the sounds associated with each letter is crucial in a young learner's path to becoming literate. This lesson provides a terrific way to reinforce this skill in an engaging and fun manner. It's a game that the...
Curated OER
Shaquille O'Neal Hand/Foot Span
Shaquille O'Neal has huge hands and feet, and learners will use those two measurements to practice collecting and extrapolating data using ratios. They record the measurement of foot and hand span of several of their classmates, then...
Curated OER
Point Comparisons
Young geometers investigate two-dimensional figures using coordinate grids. They identify polygons and draw examples of their reflection, rotation, and translation on a coordinate grid. And they complete a worksheet practicing examples...
Curated OER
Introductory Algebra Chapter 1 Review
In this math worksheet, students solve the problems that involve linear equations. They substitute the values given for each variable.
Curated OER
Thanksgiving Activity: Thanksgiving and Family
Students examine common Thanksgiving foods employing counting, singing, and discussion. Students sing "We Eat Turkey" and discuss what their families eat. Students will then be asked to create and plate of Thanksgiving food and count and...
Curated OER
In and Out Function
Third graders examine how to solve in and out function problems, or mystery numbers. They analyze a variety of mystery number problems together and extend the patterns. Students then independently complete a Mystery Number activity...
Curated OER
Addition and Subtraction Facts to 20
Students act out computation problems. In this addition and subtraction lesson, students act out an addition story and write an addition sentence for it. Students continue this activity and answer the provided questions.
Curated OER
Math is Beautiful
Students explore how geometry is used on the composition of artworks by artists from different cultures. This lesson is equally suited for a Math or Art classroom at the late-elementary or early-middle school level.
Curated OER
Name Fame
First graders learn the uniqueness of their names by reading the book, Chrysanthemum, and completing other integrated math counting and graphing activities.
Curated OER
How Do I Measure Up?
Students measure and record weights and heights and compare to others in the class as they find out more about their bodies.
Curated OER
100 Day Chick Hunt
Students investigate how to count to the number 100 with the connection to using chicks as objects. They use cutouts of chicks and place them into the counting chart and recognize the different numerals while counting at the same time.
Curated OER
Get Geared Up
Middle schoolers calculate gear ratio as they solve word problems. They discuss and find slopes as they relate to real life. Additionally, they hey use ratio and proportion to make predictions and solve problems.
Curated OER
How Many Items?
In this counting items worksheet, students look over eight pictures, count how many items are in each picture and then circle the corresponding number underneath each picture.