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Geometry (Florida B.E.S.T.)

Your Teacher Information Pack for Geometry (Florida B.E.S.T.): the standards with their official codes, in our own short summaries, plus tests and official links.

State
Florida
Grade
HS
Source
Florida's B.E.S.T. Standards (Benchmarks for Excellent Student Thinking)
Last checked
2026-10-20

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The standards (our summaries)

Official Florida codes with our own short summaries (not the official wording). Each code links to the official document.

GR – Geometric Reasoning

  • MA.912.GR.1.1 Prove and apply line and angle theorems, including vertical angles, parallel lines, and perpendicular bisectors.
  • MA.912.GR.1.2 Prove triangles congruent or similar using SSS, SAS, ASA, AAS, AA, and HL criteria.
  • MA.912.GR.1.3 Prove and apply triangle theorems on angle sums, exterior angles, inequalities, isosceles bases, midsegments, and medians.
  • MA.912.GR.1.4 Prove and apply parallelogram properties, including congruent opposite sides and angles and bisecting diagonals.
  • MA.912.GR.1.5 Prove and apply trapezoid properties, including the midsegment theorem and isosceles trapezoid features.
  • MA.912.GR.1.6 Show two-dimensional figures are congruent or similar based on given information and solve related problems.
  • MA.912.GR.2.1 Describe a transformation from preimage and image and write it algebraically using coordinates.
  • MA.912.GR.2.2 Identify which transformations preserve distance (dilations do not) and recognize all preserve angle measure.
  • MA.912.GR.2.3 Find a sequence of transformations that maps a figure onto itself or onto a congruent or similar figure.
  • MA.912.GR.2.5 Draw a figure on a coordinate plane after applying two or more transformations in sequence.
  • MA.912.GR.2.6 Use rigid transformations to map one figure onto another and show corresponding sides and angles match.
  • MA.912.GR.2.8 Use a suitable transformation to show similarity through proportional sides and congruent angles.
  • MA.912.GR.3.1 Determine weighted averages of points on a number line and see how changing weights shifts the result.
  • MA.912.GR.3.2 Use coordinates, distance, midpoint, and slope to classify or justify circle, triangle, and quadrilateral properties.
  • MA.912.GR.3.3 Use coordinates to solve problems with lines, circles, triangles, and quadrilaterals, including tangents and partition points.
  • MA.912.GR.3.4 Use coordinates to find the perimeter and area of polygons in mathematical and real-world problems.
  • MA.912.GR.4.1 Identify the shapes of two-dimensional cross-sections of right prisms, cylinders, pyramids, and cones.
  • MA.912.GR.4.2 Identify three-dimensional solids produced by rotating two-dimensional figures around an outside axis.
  • MA.912.GR.4.3 Explain how scale factors and dilations affect area, surface area, and volume.
  • MA.912.GR.4.4 Solve problems involving the area of two-dimensional figures, including population density based on area.
  • MA.912.GR.4.5 Solve volume problems for cylinders, pyramids, prisms, cones, and spheres, including density applications.
  • MA.912.GR.4.6 Solve surface area problems for cylinders, pyramids, prisms, cones, and spheres.
  • MA.912.GR.5.1 Construct a copy of a segment or angle using compass and straightedge or other tools.
  • MA.912.GR.5.2 Construct bisectors of segments and angles, including perpendicular bisectors of segments.
  • MA.912.GR.5.3 Construct the inscribed and circumscribed circles of a triangle.
  • MA.912.GR.6.1 Solve problems finding lengths of secants, tangents, segments, and chords in a circle.
  • MA.912.GR.6.2 Solve problems about arc measures and related angles, including inscribed, central, and tangent-secant angles.
  • MA.912.GR.6.3 Solve problems involving triangles and quadrilaterals inscribed in circles.
  • MA.912.GR.6.4 Solve problems involving arc length and sector area in a circle.
  • MA.912.GR.7.2 Derive a circle's equation from its center and radius using the Pythagorean Theorem and completing the square.
  • MA.912.GR.7.3 Graph and solve circle-equation models, interpreting domain, range, center, and radius in context.

T – Trigonometry

  • MA.912.T.1.1 Define sine, cosine, and tangent for acute angles in right triangles, linking ratios to similarity and the unit circle.
  • MA.912.T.1.2 Solve right-triangle problems using trig ratios and the Pythagorean Theorem, including 30-60-90 and 45-45-90 triangles.

LT – Logic and Discrete Theory

  • MA.912.LT.4.3 Interpret if-then, if-and-only-if, all, and not statements; find converse, inverse, and contrapositive forms.
  • MA.912.LT.4.10 Judge argument validity and use counterexamples to disprove statements within course proofs.
Mathematical Thinking and Reasoning (K–12) (apply to every grade)

Mathematical Thinking and Reasoning Standards (MA.K12.MTR)

  • MA.K12.MTR.1.1 Engage persistently in challenging problems, individually and with peers, adjusting methods when stuck.
  • MA.K12.MTR.2.1 Show understanding by representing problems several ways: objects, drawings, tables, graphs, and equations.
  • MA.K12.MTR.3.1 Complete tasks accurately and efficiently, choosing and adapting methods to fit the context.
  • MA.K12.MTR.4.1 Discuss mathematical thinking, communicate clearly, analyze others' reasoning, and justify results.
  • MA.K12.MTR.5.1 Use patterns and structure to break down problems and connect new ideas to prior learning.
  • MA.K12.MTR.6.1 Check whether solutions are reasonable through estimation, benchmarks, and explained methods.
  • MA.K12.MTR.7.1 Apply mathematics to real-world situations through modeling, investigation, and refining methods.

Tests and key dates

Check the Florida Department of Education for state tests and testing windows.

More packs

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Benchmark codes from Florida's B.E.S.T. Standards, Florida Department of Education. Summaries are Classfern's own words, not the official text.

Codes are facts; the descriptions are our own summaries, not the official text (Florida Department of Education material is copyright and may not be copied commercially). Always check the official document.

Classfern is not affiliated with or endorsed by Florida Department of Education.