Similar Figures Teacher Resources

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Play with polygons and explore the concept of congruence. Interested minds discuss how two objects are similar and different then define congruent and similar figures. This lesson employs the use of three different centers. They use geoboards to make congruent figures, sort pattern blocks according to congruences and use a website to play a congruent concentration game.
Young scholars explore the concept of finding area of similar figures. For this finding area of similar figures lesson, students use pattern blocks to construct similar figures. Young scholars trace their construction and find the area. Students determine if the ratio between similar figures can be used to find the area of similar figures.
Students calculate the area and the perimeter of triangles. In this geometry instructional activity, students identify the ratio and proportion of similar figures.
Learners explore the concept of similar figures.  In this similar figures lesson, students use their Ti-Nspire to determine if two figures are similar.  Learners use angle measures, ratios, and side lengths to determine if two figures are similar. Students apply similar figures to a problem involving a determining the height of a cliff.
In this expanding similar figures worksheet, 7th graders use pattern blocks to build similar figures. They record the number of pattern blocks it takes to make the next similar figure using the label "units of area." They explain their work by responding to an open-ended question.
Students determine the relationship between perimeter, circumference, area, surface area, and/or volume of similar figures and their parts. They complete activities related to the question. Answer key included.
Sixth graders practice proportionality and ratios. In this proportionality instructional activity, 6th graders study congruent shapes and triangles. Students use grid paper to draw similar figures. Students explain similar figures in their journal.
Students explore the concept of similar figures. In this similar figures lesson, students develop the idea that similar figures are a different size but the same shape by comparing similar rectangles. Students use patty paper to trace their hands and discuss if their tracing is similar to their hands.
Learners investigate the proportions of similar and non-similar geometric figures. Using computer software, they define corresponding sides of similar figures. Students use this information to find missing lengths of similar figures.
Upper elementary and middle schoolers examine the Volumes of Similar Figures. They investigate the relationship between corresponding sides and evaluate the volume of similar figures. Pupils record their findings on various activity worksheets.
In this similar figures learning exercise, students identify the dimensions that would produce a similar figure. They find similar triangles, rectangles and parallelograms. This two-page learning exercise contains 10 multiple-choice problems.
For this similar figures worksheet, learners identify similar figures from models and given dimensions. This two-page worksheet contains ten multiple choice problems.
Young scholars investigate similar figures using pattern blocks. In this similar figures lesson, students create figures using pattern blocks. Young scholars keep track of the area of their figures.
Similar figures have the same shape, the same corresponding angles, but different lengths of their corresponding sides. The teacher explains just what all that means. She demonstrates how to compare the two shapes to prove they are similar.
Students self-discover the relationships between similar figures. They take what they have been taught about these relationships and apply these concepets to problem-solving. Students discuss what they discovered during their internet research.
High schoolers discover how to solve proportions and find the missing sides of similar figures using the scale factor. Along with learning how to use a scale factor to find a missing value, learners also access math videos, and play an online game which will test their ability to perform these calculations. An outstanding math lesson that utilizes technology. Very good!
Math scholars perform transformations. In this coordinate plane lesson, learners construct geometric figures with tiles. They form larger and similar figures, and create transformations.
Young scholars explore the concept of congruent and similar figures.  In this congruent and similar figure lesson, students classify pictures according to congruent and similar figures.  Young scholars measure the lengths of various figures to determine if they are congruent, similar, or neither.  Students measure and compare the diagonals of various polygons such as parallelograms, rectangles, squares, trapezoids, and rhombuses. 
Seventh graders explore pairs of triangles to develop a conceptual understanding for similar figures. They use this definition to explore the proportional relationships involved in similar triangles and to find missing lengths and angle measures.
Students will use proportional reasoning to express relationships among corresponding parts of similar figures.  In this geometry lesson, students will work in pairs and small groups to explore pairs of triangles.  The goal of the lesson is  to develop a conceptual understanding of similar figures.

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