Can You Solve This Pier Puzzle? | Physics Girl

Learning Resource Type

Classroom Resource

Subject Area

Mathematics

Grade(s)

9, 10, 11, 12

Overview

This math brainteaser challenges you to find a simple, elegant solution to a seemingly complex problem! Can you figure it out?

Mathematics (2019) Grade(s): 09-12 - Geometry with Data Analysis

MA19.GDA.31

Justify whether conjectures are true or false in order to prove theorems and then apply those theorems in solving problems, communicating proofs in a variety of ways, including flow chart, two-column, and paragraph formats.

UP:MA19.GDA.31

Vocabulary

  • Same side interior angle
  • Consecutive interior angle
  • Vertical angles
  • Linear pair
  • Adjacent angles
  • Complementary angles
  • Supplementary angles
  • Perpendicular bisector
  • Equidistant
  • Theorem Proof
  • Prove
  • Transversal
  • Alternate interior angles
  • Corresponding angles
  • Interior angles of a triangle
  • Isosceles triangles
  • Equilateral triangles
  • Base angles
  • Median
  • Exterior angles
  • Remote interior angles
  • Centroid
  • Parallelograms
  • Diagonals
  • Bisect

Knowledge

Students know:
  • Requirements for a mathematical proof.
  • Techniques for presenting a proof of geometric theorems.

Skills

Students are able to:
  • Communicate logical reasoning in a systematic way to present a mathematical proof of geometric theorems.
  • Generate a conjecture about geometric relationships that calls for proof.

Understanding

Students understand that:
  • Proof is necessary to establish that a conjecture about a relationship in mathematics is always true, and may also provide insight into the mathematics being addressed.
Mathematics (2019) Grade(s): 09-12 - Geometry with Data Analysis

MA19.GDA.32

Use coordinates to prove simple geometric theorems algebraically.

UP:MA19.GDA.32

Vocabulary

  • Simple geometric theorems
  • Simple geometric figures

Knowledge

Students know:
  • Relationships (e.g. distance, slope of line) between sets of points.
  • Properties of geometric shapes.
  • Coordinate graphing rules and techniques.
  • Techniques for presenting a proof of geometric theorems.

Skills

Students are able to:
  • Accurately determine what information is needed to prove or disprove a statement or theorem.
  • Accurately find the needed information and explain and justify conclusions.
  • Communicate logical reasoning in a systematic way to present a mathematical proof of geometric theorems.

Understanding

Students understand that:
  • Modeling geometric figures or relationships on a coordinate graph assists in determining truth of a statement or theorem.
  • Geometric theorems may be proven or disproven by examining the properties of the geometric shapes in the theorem through the use of appropriate algebraic techniques.

CR Resource Type

Audio/Video

Resource Provider

PBS

License Type

PD
ALSDE LOGO