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Interactive3:52
Scholastic

Study Jams! Units of Measurement

For Students 5th - 8th Standards
As Mia and RJ discuss measurement, your class is introduced to the customary and metric systems for measuring mass, capacity, weight, and length. Temperature scales are also introduced. This resource can help set the foundation for later...
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Interactive
Scholastic

Study Jams! Perimeter

For Students 3rd - 5th Standards
Follow this engaging slide show on the calculation of polygon perimeter with some hands-on measurement of perimeters to solidify the concepts. On this webpage there are interactive assessment questions and links to related resources by...
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Interactive
Scholastic

Study Jams! Geometric Patterns

For Students 3rd - 5th Standards
Here is a fun online activity that learners can use to practice imitating patterns! Along the way, they are exposed to the names of geometric shapes including rhombus, hexagon, octagon, and decagon.
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Lesson Plan
Exploratorium

Geometry Scavenger Hunt

For Teachers 1st - 4th
One of the nice things about geometry is that it's all around us. The activity presented here has elementary schoolers go out to the playground to identify and name a variety of geometric shapes. They perform a "geometric scavenger hunt"...
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Lesson Plan
Exploratorium

Exploring Tessellations

For Teachers 3rd - 5th
Looking for a good lesson plan on tessellations for your elementary schoolers? This one looks to be quite good! Pupils discover that a tessellation is any pattern of repeating shapes that cover a surface without overlapping or leaving...
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Lesson Plan
Exploratorium

Soda Can Mirrors

For Teachers 6th - 8th
Here is an entertaining and illuminating lesson on morphed images. Middle schoolers make cylindrical mirrors by wrapping soda cans in reflective mylar. First, they try to determine what the images are that are embedded in the plan by...
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Lesson Plan
Exploratorium

Building Three-Dimensional Structures

For Teachers 6th - 8th
Are you looking for a good 3-D geometry lesson that includes hands-on activities for your middle schoolers? Look no further than this one! Pupils use centimeter grid paper embedded in the plan, along with detailed construction...
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Lesson Plan
Curated OER

Shipping Rolled Oats

For Teachers 7th - 9th Standards
What better way to start your day than with a box of oatmeal? Or what better way to start your geometry class than by calculating its volume? Eighth graders discover just how practical volume computation can be in business and in breakfast!
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Lesson Plan
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Curated OER

Two Triangles' Area

For Teachers 7th - 9th Standards
Need an activity for teaching the Pythagorean Theorem? Geometry juniors apply the Pythagorean theorem to two triangles to determine a final calculation. 
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Lesson Plan
Curated OER

Triangle's Interior Angles

For Teachers 7th - 9th Standards
Given a pair of parallel lines and a triangle in between, geometers prove that the sum of the interior angles is 180 degrees. This quick quest can be used as a pop quiz or exit ticket for your geometry class.
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Printables
Curriculum Corner

Math Common Core Checklist for K-6

For Teachers K - 6th
As the school year progresses, it can be challenging for teachers to keep track of the specific math standards they've covered and those that remain to be taught. This Common Core checklist solves this problem, providing educators with a...
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Lesson Plan
Curated OER

Congruent Rectangles

For Teachers 7th - 9th Standards
Very simply, geometers examine a pair of rectangles on graph paper and find a translation and rotation to demonstrate their congruence. A couple of questions follow to stimulate critical thinking about other possibilities.
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Lesson Plan
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Curated OER

Flower Vases

For Teachers 7th - 9th Standards
Which vase holds more water: a cylinder, sphere, or cone? Figure out which should be used for your sister's birthday bouquet with this practical word problem.
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Lesson Plan
Curated OER

Glasses

For Teachers 7th - 9th Standards
Provide your class some practice with the dimensions of geometric figures. Here you have a set of three different-shaped, stemmed drinking glasses with diameters and heights provided. Math-minded individuals calculate the volume of each....
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Lesson Plan
Curated OER

Partitioning a Hexagon

For Teachers 7th - 9th Standards
The task at hand is to partition a hexagon into two, four, and eight congruent figures. Make sure to give your wizards a sheet of triangle grid paper on which to decompose the hexagons. Have them explain which rotations, reflections, or...
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Lesson Plan
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Curated OER

Reflecting a Rectangle Over a Diagonal

For Teachers 7th - 9th Standards
Use the handout as guided or independent practice in drawing a reflection of a rectangle over a line. Three rectangles are provided for practice in addition to a critical thinking question.
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Lesson Plan
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Curated OER

Areas of Geometric Shapes with the Same Perimeter

For Teachers 7th - 9th Standards
A triangle, square, hexagon, and circle all have a perimeter of one unit. Eighth graders must attempt to find the area of each and arrange them in order from least to greatest areas. A terrific task for applying four different area...
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Lesson Plan
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Curated OER

A Rectangle in the Coordinate Plane

For Teachers 7th - 9th Standards
A quadrilateral is drawn on the coordinate plane, and eighth grade geometers find the length of each side and the diagonals by applying the Pythagorean theorem. 
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Lesson Plan
Illustrative Mathematics

Comparing Snow Cones

For Teachers 7th - 9th Standards
Everyone wants to have the biggest snow cone possible, so would that be in cone-shaped cup or a more cylinder-style cup? Hungry geometry juniors compute the volume of each in this practical task.
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Assessment
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Curated OER

Congruent Segments

For Students 7th - 9th Standards
The task, should your class decide to take it, is to list a series of reflections that transfer a line segment from one position to another. 
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Handout
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Curated OER

Algebra Cheat Sheet

For Teachers 7th - 11th Standards
Full of info, this handout provides the rules, properties, and common mistakes found in an algebra course. This cheat sheet is a great resource for those hard-to-remember exponent rules and hyperbola equations, along with everything else...
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Printables
Virginia Department of Education

Middle School Mathematics Vocabulary Word Wall Cards

For Teachers 5th - 9th
Having a good working knowledge of math vocabulary is so important for learners as they progress through different levels of mathematical learning. Here is 125 pages worth of wonderfully constructed vocabulary and concept review cards....
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Printables
Ed Galaxy

Amazing Angles

For Teachers 4th - 9th Standards
Three letter-sized mini posters can be displayed in your elementary geometry class when teaching about angles. One provides information about degree measurement and additive properties, and the other two define acute, right, obtuse,...
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Printables
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SEN Teacher

Photo Nets (3D)

For Teachers 4th - 10th Standards
The sky is the limit when printing custom 3-D shape templates from this site. Not only can you pick your shape and pattern, there is an option to upload an image for the different sides of the geometric shape. Let your learners have fun...