McGraw Hill
Glencoe Mathematics: Self Check Quiz on Reasoning & Proof
The online assessment demonstrates knowledge of concepts utilized in Geometry. The multiple choice questions test students on mathematical reasoning and proof.
Maths Challenge
Maths challenge.net: Painted Faces
Mathchallenge offers this mathematical reasoning problem, a one star problem requiring nothing more than a logical mind and paper and pencil, to deduct the painted faces problem
National Council of Teachers of Mathematics
Nctm: Figure This: Don't Fall In
Have you ever wondered why manhole covers are round? Believe it or not, there is a logical, mathematical reason. See if you can figure it out in this NCTM Math Challenge for Families activity. A one-page activity with suggested life...
Maths Challenge
Maths challenge.net: Shaded Square
A problem of finding the fraction of a square that is shaded given criterion. Students will have to use their mathematical reasoning and triangle solving skills to solve this area problem.
Maths Challenge
Maths challenge.net: Shaded Hexagon
A problem with equilateral triangles and area to solve this "Shaded Hexagon" problem. Mathematical reasoning and triangle knowledge will be needed to solve the problem.
Other
Propagation of Light Using Geometry
A discussion of Christian Huygens' contribution to wave optics, and particularly to our understanding of the reflection and refraction of light. Excellent diagrams and a geometric proof on why the law of reflection is mathematically...
PBS
Pbs: Linear Equations in One Variable
Visualize solutions to one variable equations by performing a balancing act. This interactive exercise focuses on linear equations and mathematical reasoning to show how one variable equations need to stay balanced to be solved correctly...
PBS
Pbs Learning Media: Kid Vid: Multiplying Mixed Numbers
Students watch a video that reveals a peer's thinking about multiplying mixed numbers and then demonstrate their understanding of the distributive property of multiplication in this interactive from KET. Students use the Notes tool to...
Maths Challenge
Maths challenge.net: Right Angle Reasoning
A geometry problem for students to use their mathematical reasoning skills to explain a right triangle property.
Illustrative Mathematics
Illustrative Mathematics: 6.ns Multiplication, Division and Place Value, Part 2
Sixth graders are asked to examine equations involving decimal numbers and to place the decimal point in the answers so that the equations are accurate, and to explain their reasoning. Aligns with 6.NS.B.3.
Illustrative Mathematics
Illustrative Mathematics: 6.ns Multiplication, Division and Place Value, Part 1
Sixth graders are presented with a completed multiplication equation and are asked to use it to find the answers to seven other equations. To do this, they must use their reasoning and estimation skills. Aligns with 6.NS.B.3.
ClassFlow
Class Flow: Matchstick Puzzles
[Free Registration/Login Required] In this Flipchart, students use logic and mathematical reasoning to visually solve problems using matchsticks. Students develop their sense of pattern recognition, and pattern disruption, and then apply...
Writing Fix
Writing Fix: Argue Better Than a Pigeon
In this lesson, the book Don't Let the Pigeon Drive the Bus! by Mo Willems is used as a mentor text. Students will learn how to evaluate the validity of a mathematical argument. Students will practice writing and revising their own...
Queen's Printer for Ontario
E workshop.on.ca: Effective Instruction in Math, 4 6: Big Ideas [Pdf]
Volume 1 in an eworkshop Guide to Effective Instruction in Math outlines and illustrates instructional strategies for explaining five big ideas of number sense and numeration to students in grades 4 through 6: quantity, operational...
Math Slice
Math Slice: Bricks 21 Game
To win this strategic game you must lay the 21st brick. That is what makes this interactive game challenging. Play against the computer or a partner. Winners will have their names posted for the day.
Cuemath
Cuemath: Conditional Statement
A comprehensive guide for learning all about conditional statements with definitions, how to create them, solved examples, and practice questions.
Maths Challenge
Maths challenge.net: Kitchen Floor
A "one star" geometry problem that requires finding the visual pattern and applying logic with basic math skills to solve how many tiles are needed to complete the kitchen floor pattern.
Maths Challenge
Maths challenge.net: Beam of Light
A "one star" geometry problem that requires finding the visual pattern and applying and pattern extensions to solve the beam of light problem.
Maths Challenge
Maths challenge.net: False Ceilings
A "one star" geometry problem that requires finding the visual pattern and applying and pattern extensions to solve the false ceiling problem.
Maths Challenge
Maths challenge.net: Counting Triangles
A "one star" geometry problem that requires finding the visual pattern and applying logic with pattern recognition to solve this number of triangles problem.
Maths Challenge
Maths challenge.net: Shaded Grid
A "one star" geometry problem that requires finding the visual pattern and applying logic with basic math skills to find the patterns.
Maths Challenge
Maths challenge.net: Shading Pattern
A "one star" geometry problem that requires finding the visual pattern and applying logic with basic math skills to solve.
Maths Challenge
Maths challenge.net: Perimeter Sequence
A "one star" geometry problem that requires finding the visual pattern and applying logic with basic math skills to find the perimeter from the sequence.
Maths Challenge
Maths challenge.net: Counting Triangles Again
A "one star" geometry problem that requires finding the visual pattern and applying logic with basic math skills to find triangles in a pattern.
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