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Radius Teacher Resources
Find teacher approved Radius educational resource ideas and activities
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Students develop an understanding of pi and the relationship between the diameter, radius and circumference. After a lecture/demo, students use construction paper and a compass to solve problems using diameter, radius and circumference.
Tenth graders explore circles. In this geometry lesson students investigate the relationships between the diameter and circumference of a circle and between the radius and area of a circle. The dynamic nature of TI-nspire provides opportunity for conjecture and verification.
Investigate the concept of Earth as a model by having learners use VRML to construct a 3-D image of a sphere. They will change the radius and notice the effects it has on circumference and volume. They will also calculate the volume and circumference of Earth given the radius. Great companion for a Geometry class.
In this circumference worksheet, students determine the circumference of a circle when given the diameter or the radius. This three-page worksheet contains 20 problems. This interactive worksheet may be completed on-line or presented in printed form.
Students explore properties of tangent lines. In this properties of tangent lines lesson, students discuss the perpendicular relationship between a tangent line on a circle and the circle's radius. Students use that relationship to determine unknown distances.
In this circles worksheet, students find the circumference of 20 circles. Students find the circumference given the radius, diameter, and area of various circles.
Line drawings of a circle, a cylinder, and a cone at the top of the page contain the formulae for area and volume of each shape. Learners complete the missing information in a chart that lists diameter, radius, height, and area and volume of the solid figures. A straightforward, but visually engaging practice sheet.
Chemists compare the electronegativity, ionization energy, electron affinity, and ionic radius of different elements. This worksheet is composed of 11 multiple choice questions, and 8 written explanations. Critical thinking skills are required, making this a terrific homework assignment. An answer sheet follows for your convenience.
Students review how to graph parabolas. They practice graphing two different parabolas using the vertex and table method. They solve problems related to graphing circles, determining the radius and the center.
Students analyze and demonstrate how a circle can be measured in square units and examine how diameter, circumference and radius are related.