EngageNY
Construct a Nine-Point Circle
There are an infinite number of points on a circle; can you find nine of them? After putting together a nine-point circle, pupils use constructions and their knowledge of triangle segments to determine the center of the circle. Learners...
Curated OER
Circumference and Area of Circles
In this circumference and area worksheet, students find each for a set of 12 given circles; either diameter or radius are given. A website reference for additional resources and answers are provided.
Curated OER
Around the Clock
Students discover the relationship between the circumference of a circle and its diameter. They find the length of an arc of a circle.Students use estimation strategies in real-world applications to predict results (i.e., interpolation...
Curated OER
2-Dimensional Shapes: Drawing Shapes
Some of the best practice with shape identification comes from drawing the figures first-hand. Young geometers draw nine two-dimensional shapes: rectangle, circle, square, pentagon, hexagon, octagon, triangle with three equal sides,...
Curated OER
MAP Practice
In this geometry activity, students create circle, line and bar graphs using different comparisons of events. There are 24 questions with an answer key.
Lane Community College
Review Sheets: Basic Mathematics 2
A good mix of Pre-Algebra problems, learners tackle everything from proportions and equations, to polygons and circles. The sections are broken up by topic with a list of the skills that are required to complete the questions.
Inside Mathematics
Squares and Circles
It's all about lines when going around. Pupils graph the relationship between the length of a side of a square and its perimeter. Class members explain the origin in context of the side length and perimeter. They compare the graph to the...
Illustrative Mathematics
Counting Circles II
Fill those extra ten minutes of math time with this fun counting activity. Given a short sequence of numbers, young mathematicians stand in a circle and count one-by-one until the last number is reached, at which point the whole group...
Mascil Project
Circular Pave-Stones Backyard
Pack the lesson into your plans. Young mathematicians learn about packing and optimization with the context of circular paving stones. They use coins to model the paving stones, and then apply knowledge of circles and polygons to...
Math Worksheets Land
Partitioning Circles and Rectangles- Independent Practice
Start simple by using a shape-partitioning worksheet. Scholars begin by segmenting basic shapes in halves and quarters. On the second page, they move on to more complex shapes, such as a heart and a cross, also partitioning them in half...
University of Exeter
Angles and Turns
Junior geometers investigate the concepts of angles and turns using straws to perform a hands on activity. This is helpful for kinesthetic learners who have a hard time with mathematics. The lesson includes the dialogue to be used during...
Curated OER
Word Problems that involve Circles
For this geometry worksheet, 10th graders solve application word problems based on knowledge of a circle. The one page interactive worksheet contains four questions. Answers and hints are included.
Curated OER
Time Zone Problems
In this time zones instructional activity, students use a formula along with information found on Google Earth to calculate time zones around the world. Students complete 12 word problems.
Curated OER
Star Circles
In this star circles worksheet, students solve six problems given a diagram of a time-exposure photograph of the stars. Students determine the scale of the image, the location of the North Celestial Pole, they identify Polaris and they...
Curated OER
Making Circle Graphs
In this circle graphing learning exercise, 6th graders answer ten multiple choice questions based on their knowledge of circle graphs. This is an interactive learning exercise.
Curated OER
Chords of a Circle
Teach how to differentiate between chords and perpendicular bisectors. In this geometry lesson, students relate the properties of chords and circle to solving right triangle. They define what makes two chords congruent in side a circle.
Curated OER
Calendar Time
Learners review and answer questions about calendar topics. In this calendar lesson, students sing calendar songs, discuss the weather, day, month and year. Learners read a book and ask and answer questions.
Curated OER
Pi Day: The Other Math Holiday!
Happy Pi Day! This collection of games, experiments, and activities leads participants through an exploration of the many aspects and attributes of that mysterious quantity, pi. Activities range from using statistical experimentation to...
EngageNY
Tangent Segments
What's so special about tangents? Learners first explore how if a circle is tangent to both rays of an angle, then its center is on the angle bisector. They then complete a set of exercises designed to explore further properties and...
5280 Math
Pythagorean Triples
From Pythagorean triples to the unit circle. Learners use the Pythagorean Theorem to find Pythagorean triples and then relate their work to the unit circle in a fun algebra project. Their discovery that x^2+y^2 is always equal to one on...
Virginia Department of Education
May I Have Fries with That?
Not all pie graphs are about pies. The class conducts a survey on favorite fast food categories in a lesson plan on data representation. Pupils use the results to create a circle graph.
Curated OER
Creating Circle Graphs using Excel
Fifth graders evaluate data from a circle graph that compares time spent on various activities. They use the computer to manipulate their own data as they compare, examine, create and evaluate data using circle graphs.
Curated OER
All About Circles
In this all about circles worksheet, students interactively answer 10 multiple choice questions about circles, then click to check their answers.
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