Geometry – includes properties of two- and three-dimensional objects, points, rays, lines, and angles including congruency, similarities, and transformations

Skills and Concepts                                                                               

 

RIT scores between 151 and 160

Shapes and Figures, 2- and 3-dimensional

bulletIdentify and name the plane figures: circle, triangle, and square

Congruency and Similarity

bulletIdentify congruent figures (using “same size and shape” terminology)
bulletIdentify figures that are similar, have the same shape

New Vocabulary in this Range: shape, circle, same as

New Signs and Symbols: none

 

RIT scores between 161 and 170

Shapes and Figures, 2- and 3-dimensional

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Identify and name solid figures: can (cylinder) and cones

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Relate and compare plane figures to solid figures

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Identify sides and corners (vertices) on solid figures

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Contrast open and closed figures

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Identify cylinder (can) attributes

Congruency and Similarity

bulletIdentify congruent figures

New Vocabulary in this Range: matches, triangle, square, corners, cone, closed, inside

New Signs and Symbols: none

 

RIT scores between 171 and 180

Shapes and Figures, 2- and 3-dimensional

bulletClassify and sort solid figures

Congruency and Similarity

bulletIdentify congruent figures using terminology

Symmetry and Transformations

bulletRecognize transformations of plane figures (slides, flips, and turns) by identifying the figure that will fit in a certain space

New Vocabulary in this Range: congruent, figure

New Signs and Symbols: none

 

RIT scores between 181 and 190

Shapes and Figures, 2- and 3-dimensional

bulletIdentify and name the plane figures: circle, triangle, square, and rectangle
bulletRecognize solid figures: cube (box)
bulletIdentify characteristics of plane figures (sides and corners)

Congruency and Similarity

bulletIdentify congruent figures, angles, and line segments
bulletIdentify similar figures (same shape, may or may not be same size)

Symmetry and Transformations

bulletIdentify figures with line symmetry
bulletRecognize transformations of plane figures (slides, flips, and turns)
bulletIdentify types of transformations (slides, flips, and turns)

Line Properties and Terminology

bulletIdentify points on a line
bulletIdentify the correct label for a line

New Vocabulary in this Range: symmetry, point, sides, rectangle, cube, straight, line segment, shortest

New Signs and Symbols: line AB (with double arrow over AB), line segment AB (with segment line over AB)

 

RIT scores between 191 and 200

Shapes and Figures, 2- and 3-dimensional

bulletRecognize solid figures:  sphere (ball)
bulletIdentify and name solid figures: cube, cylinder, cone, rectangular prism, and sphere
bulletIdentify characteristics of plane figures (sides and corners)

Symmetry and Transformations

bulletIdentify figures with line symmetry and symmetrical parts
Geometric Properties and Terminology
bulletIdentify position concepts: (over, under, inside, outside, in front, behind, top, middle, bottom)
bulletDescribe and measure right angles
bulletIdentify right angles
bulletIdentify intersecting, parallel lines
bulletIdentify the diagonal of a circle

New Vocabulary in this Range: symmetrical, parallel, intersecting, diagonal, pair, angle, cylinder, outside, inside, sphere, faces, corresponding, point, intersect, outside, axis of symmetry, line segment, pentagon

New Signs and Symbols: symbol for parallel lines

 

RIT scores between 201 and 210

Shapes and Figures, 2- and 3-dimensional

bulletIdentify faces, edges, and corners (vertices) on solid figures
bulletIdentify polygons:  triangle, quadrilateral, pentagon, and octagon
bulletIdentify quadrilaterals:  square, rectangle, and parallelogram
bulletIdentify, name, and analyze solid figures:  cube, cylinder, triangular pyramid and square pyramid (faces, edges, and vertices)

Symmetry and Transformations

bulletIdentify mirror-images

Congruency and Similarity

bulletIdentify congruent figures, angles and line segments

Geometric Properties and Terminology

bulletIdentify points, lines, line segments, rays, planes, and angles
bulletIdentify the diameter of a circle
bulletIdentify intersecting, parallel, and perpendicular lines

New Vocabulary in this Range: intersection, quadrilaterals, octagon, parallelogram, pyramid, isosceles, right angle, diameter, right angle, geometric, perpendicular, plane

New Signs and Symbols: D for triangle, angle symbol

 

RIT scores between 211 and 220

Shapes and Figures, 2- and 3-dimensional

bulletIdentify faces, edges, and corners (vertices) on solid figures
bullet Contrast open and closed figures
bulletIdentify polygons:  triangle, quadrilateral, pentagon, hexagon, and octagon
bulletIdentify quadrilaterals:  square, rectangle, parallelogram, trapezoid, rhombus
bullet Analyze solid figures:  triangular pyramid and rectangular pyramid (faces, edges, and vertices)

Congruency and Similarities

bulletIdentify similar figures (same shape, may or may not be the same size)
bulletIdentify congruent polygons and their corresponding sides and angles

Symmetry and Transformations

bulletIdentify types of transformations (rotation)

Geometric Properties and Terminology

bulletIdentify points, lines, line segments, rays, and angles
bulletIdentify angles:  right, obtuse, and acute
bulletIdentify when two intersecting lines are perpendicular
bulletIdentify properties of similar figures

New Vocabulary in this Range: symmetrical, perpendicular, ray, vertex, rotation, triangular prism, corresponding parts, supplementary, acute angle, transformation

New Signs and Symbols: @ - congruent symbol, « - double arrow symbol for similarity, p - pi symbol, DABC - to label triangle

 

RIT scores between 221 and 230

Shapes and Figures, 2- and 3-dimensional

bulletAnalyze solid figures:  rectangular prism, triangular prism, triangular pyramid, square, pyramid (faces, edges and vertices)
bulletClassify polygons by sides and angles

Congruency and Similarity

bulletIdentify congruent triangles according to corresponding parts (SSS, SAS, ASA)

Geometric Properties and Terminology

bulletIdentify the center, radius and diameter of a circle
bulletMeasure angles using a protractor
bulletClassify angles:  supplementary and complementary
bulletClassify angles:  adjacent, vertical, corresponding, and supplementary

New Vocabulary in this Range: radius, polygon, circumference, trapezoid, rectangular box, equilateral, similar, obtuse angle, straight angle, slide

New Signs and Symbols: angle symbol, label for line – L1

 

RIT scores between 231 and 240

Symmetry and Transformations

bulletUnderstand meaning and representation of a dilation

Geometric Properties and Terminology

bulletClassify triangles by sides (equilateral, isosceles, and scalene) and angles (acute, obtuse, and right)
bulletClassify polygons by sides and angles
bulletIdentify and discriminate between regular and irregular polygons
bulletFind the missing angle measurement in a triangle when two angles are known
bulletSolve word problems involving similar polygons
bulletIdentify the base angles of a triangle
bulletKnow the definition of the hypotenuse of a triangle

New Vocabulary in this Range: transformation, hypotenuse, edge, isosceles, scalene triangle, similar trapezoids, alternate interior angles, sum of angles in triangle

New Signs and Symbols: none

 

RIT scores between 241 and 250

Congruency and Similarity

bulletConstruct congruent segments and angles

Symmetry and Transformations

bulletIdentify symmetry of a sphere

Geometric Properties and Terminology

bulletIdentify properties of parallel lines
bulletConstruct angle bisectors
bulletUse the Pythagorean theorem to calculate the measure of one side of a right triangle when the other two sides are known
bulletIdentify angle bisectors
bulletSolve problems regarding relationships among chords of a circle

New Vocabulary in this Range: symmetrical halves, diameter, radius, angle bisector, tangent, corresponding parts of congruent triangles, Pythagorean theorem, corresponding angles, complementary angles, construction

New Signs and Symbols: sign for parallel lines

 

RIT scores between 251 and 260

Congruency and Similarity

bulletSolve problems involving properties of similar triangles

Symmetry and Transformations

bulletSolve problems involving rotations (turns) and reflections (flips)

Geometric Properties and Terminology

bulletIdentify properties and slope of lines
bulletIdentify plane
bulletIdentify midpoint and endpoint
bulletIdentify perpendicular bisector
bulletIdentify properties of polygons (rhombus, parallelogram)

New Vocabulary in this Range: slope, non-vertical and non-horizontal, midpoint, endpoint, rotational symmetry, reflected, perpendicular bisector, similar triangles, similar trapezoids, similar cylinders, conditional, counterexample, conclusion of in-then statement, interior of angle, exterior angle of regular polygon, interior angle of regular polygon, sum of angles in triangle equals 180 degrees, congruent angles, adjacent angles, vertical angles

New Signs and Symbols: none

 

RIT scores between 261 and 270

Geometric Properties and Terminology

bulletIdentify the correct definition of a postulate
bulletSolve problems using two chord power theorem
bulletIdentify and solve problems involving right triangles using the trigonometric functions and the Pythagorean Theorem
bulletUse of distance formula to determine type of triangle using coordinates
bulletSolve problems regarding relationships among chords, secants, tangents, inscribed angles, central angle, arc, and inscribed and circumscribed polygons of circles
bulletMeasure and compare angles in degrees
bulletSolve problems involving the perimeter, circumference, area, volume, and surface area of common geometric figures
bulletDetermine how changes in dimensions affect the perimeter, area, and volume of common geometric figures and solids
bulletFind and use measures of sides and interior and exterior angles to identify figures and solve problems involving polygons
bulletKnow the effect of rigid motions on figures in the coordinate plane and space, including rotations, translations, and reflections

New Vocabulary in this Range: postulate

New Signs and Symbols: none

 

RIT scores between 271 and 280

Congruency and Similarity

bulletProve that triangles and other polygons are congruent or similar using algebraic, coordinate, and deductive proofs

Geometric Properties and Terminology

bulletIdentify number of diagonals of regular polygons
bulletInformally prove relationships between angles in polygons by using properties of complementary, supplementary, vertical, and exterior angles

New Vocabulary in this Range: HL

New Signs and Symbols: none

 

RIT scores between 281 and 290

Symmetry and Transformations

bulletSolve problems involving volume with rotational transformation

New Vocabulary in this Range: none

New Signs and Symbols: none

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