Curated OER
Square Circles
Students analyze and demonstrate how a circle can be measured in square units and examine how diameter, circumference and radius are related.
Curated OER
Math Practice: Circles
In this circle worksheet, students solve 8 problems: finding percentage increase, finding differences in area and perimeter, finding circumference and area.
Curated OER
Moving On: Octagoning the Circle
Students explore circles through the use of octagons. They inscribe a circle in a regular octagon and find the area and perimeter of the hexagon with respect to the radius of the circle. Students present their findings to the class.
Curated OER
Area graphics for 7th graders
Students randomly select dimensions for three geometric shapes (square, right triangle and circle). From the graphs they compare and contrast the graphical results of each shape.
Curated OER
Perimeter, Circumference and Area
In this measurement learning exercise, students identify the area, perimeter and circumference of a diagram. They also find the size of a pond based on the diagram shown on the sheet. Finally, students calculate how much carpet is needed...
Curated OER
Evaluating the Products of Chords of a Circle
Students investigate chords and make predictions. In this geometry instructional activity, students graph circles and calculate the measurement of each chord. They perform the calculations and make conjectures.
Curated OER
Volume, Surface Area for Cylinders
Seventh graders explore the concept of volume and surface area of cylinders. In this volume and surface area of cylinders lesson, 7th graders break cylinders into their base shapes of a circle and a rectangle. Students discover that...
Curated OER
Circulatory Circles
Students investigate the circulatory system. In this circulatory system lesson, students complete a WebQuest and explore all the areas of the heart. Students determine the functions of different parts of the circulatory system and...
K12 Reader
Shapes on a Plane
Geometric shapes are the focus of a comprehension exercise that asks readers to examine a short passage about planes, circles, triangles, and rectangles, and then to respond to a series of questions about the article.
Del Mar College
Formulas for Elementary and Intermediate Algebra
Give your scholars the support they need to work with formulas. A reference page offers definitions and picture examples of perimeter, area, surface area, volume, the Pythagorean theorem, a variety of shapes, and more.
Utah Education Network (UEN)
Geometric Figures and Scale Drawings
Scale up your lessons on geometry and ask learners to investigate conditions on triangles, scale drawings, the area and circumference of circles, and angle relationships. The resource includes activities and a homework assignment.
Curated OER
Principles of Square Roots Lesson Plan
Middle and high schoolers investigate all the different places in math that square root is present. In this geometry lesson, pupils discuss square roots as it relates to a right triangle and construction. They go over altitude, rise,...
Radford University
“Putt-Putt” For The Geometry of It!
Take a swing at the task. Using their knowledge of polygons and solids, scholars design one hole of a miniature golf course. They calculate areas and perimeters, determine the cost of building the holes, make scale drawings, and create...
Radford University
The Puppy’s Empire
Dogs can't do math ... but people sure can! A set of five lessons has scholars apply math concepts to solve problems related to buying a new dog, such as designing a fence and a dog house, estimating how large the dog will become, and...
Radford University
Catch Me If You Can!
Crime doesn't pay, but everyone can learn from it. Learners consider different situations involving mischief at a school, such as stink bombs and rockets, and analyze them using mathematics. They must apply trigonometry, quadratic...
Curated OER
Calculate the Radius
In this radius worksheet, students calculate the radius of a circle when the area is given to them. Students complete 5 problems total.
Curated OER
Scale Factors for Areas and Volumes
Pupils examine mathematical questions. They examine how to tackle mathematical questions and discover the effect of a change in length on area and volume. They examine the consequences of the physical properties sea animals on heat loss...
Curated OER
Measurement, Perimeter and Area
Learners explore the concept of measurement. In this measurement instructional activity, students collect data about themselves such as height, finger length, neck circumference, foot length, and other body measurements. Learners cut...
Curated OER
Circle Mat
In this math worksheet, students use the circle to calculate a variety of problems using circumference or area. The sheet does not have specific directions.
Curated OER
The Big Circle
Students explore geography by participating in a mapping activity. In this concentric ring lesson, students utilize a poster board, string and markers to identify their current location within the entire world. Students write about their...
EngageNY
Ptolemy's Theorem
Everyone's heard of Pythagoras, but who's Ptolemy? Learners test Ptolemy's Theorem using a specific cyclic quadrilateral and a ruler in the 22nd installment of a 23-part module. They then work through a proof of the theorem.
Equality and Human Rights Commission
Learning area 1: Who am I?
Five activities encourage scholars to dream big and celebrate the similarities and differences of those around them. Learners take part in two active practices that showcase how their peers are the same and different. Worksheets...
101 Questions
Car Caravan
Keep playing with those old toy cars! Pupils estimate the number of toy cars in an art installation. The only information they receive is a picture showing the toy cars arranged in concentric rings and the diameter of the overall...
Balanced Assessment
Don't Fence Me In
Investigate the complexities of design problems using geometric concepts. The task asks scholars to design a fence for a horse based on the distance it can travel within one hour. It is a seemingly simple task — until individuals learn...
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