Curated OER
Triangles
For this math worksheet, learners answer 3 questions about an equilateral triangle. Students then answer 3 questions about isosceles triangles. Learners then calculate missing angles on isosceles triangles.
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Geometry Practice Exam
In this reflections and rotations instructional activity, students reflect and rotate lines in graphs and draw lines of symmetry through patterns. Students complete 24 problems.
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Reflections
In this reflections activity, 10th graders solve and complete 34 different problems that include determining various reflections. First, they trace the figure and draw its reflection in each line. Then, 10th graders use the diagram shown...
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Congruence Statements
In this congruence statements worksheet, 10th graders solve and complete 16 various types of problems. First, they complete each congruence statement listed. Then, students graph each set of points on the coordinate plane provided. They...
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Geometry Exam
In this reflections and symmetry worksheet, students draw lines of symmetry in shapes and patterns and reflect letters over lines in graphs. Students complete 20 problems.
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Symmetry: Reflections
In this symmetry worksheet, students reflect a series of figures over given lines and rotate figures around given points as indicated.
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Geometry Journal: Isosceles Triangles
In this isosceles triangles worksheet, students justify and determine the symmetry of an isosceles triangle. They explore the bisector of rectangles. This three-page worksheet contains two problems. Answers are listed on page three.
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Polynominoes
In this polynominoes worksheet, 10th graders solve 9 different problems relating to various types of polynominoes, such as triominoes and tetrominoes. First, they determine how many different types of triominoes they can locate and draw...
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Angles, Symmetry, and Quadrilaterals in Four Exercise Sets
In this angles worksheet, students calculate the size of angles, draw lines of symmetry, and form quadrilaterals in four exercise sets. The solutions are provided.
Illustrative Mathematics
Is This a Parallelogram?
If both pairs of opposite sides of a quadrilateral are congruent, is the quadrilateral a parallelogram? This task asks learners to determine the answer and to support their answer with a proof. The resource includes a commentary for...
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Forty Mental Math Angle Problems
In this angle activity, students answer forty mental math questions divided into four problem sets. These problems require students to remember angle facts and so simple calculations mentally.