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mathematical reasoning 1.2Clear All
Curated OER
Sandlapper Solutions
Students use mathematical thinking and reasoning to translate problems into mathematical language and thereby solve the problems. They extend their understanding of whole number operations to fractions and decimals by participating in...
Curated OER
The Secret of the Crystal Ball
Eighth graders use mathematical expressions to solve problems. In this basic properties of operations, 8th graders use prior knowledge and logical reasoning to solve equations. Students analyze an equation by solving a...
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Building Shapes From Numbers
Students experience how to illustrate some of the many connections between number and geometry. Through this 2-3 day focus on square numbers and triangular numbers, students make connections among mathematical topics.
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Logic and Proof Writing
Students define inductive and deductive reasoning and write two column proofs. In this geometry lesson plan, students analyze arguments and draw conclusion. They define steps necessary to arrive at the correct answer when completing proofs.
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A Fishy Problem
Students survey the problems involved in finding a solution to a practical problem using a mathematical process. Students make sensible estimates and check the reasonableness of their answers. Students report the results of their...
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Traditional American Indian Lodges
Students explore the mathematical properties of traditional American Indian lodges. They examine the effect of increasing sides of a polygon, calculate the surface area of prisms and cylinders, and construct a classroom size pyramid...
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WINDMILL POWER
Students study operations with real numbers using mental computation or paper-and-pencil calculations. They judge the reasonableness of numerical computations and their results. They set up and solve proportions for direct and inverse...
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Resistance in a Wire
High schoolers find the constant of proportionality and apply it to a situation. They use the electrical resistance in a wire as a context for finding the constant of proportionality. In addition, they write an explanation and...
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Anything I Can Do You Can Do Better
Students complete a two-week unit involving design and construction concepts. They watch a PowerPoint presentation about geometric shapes, draw the fourteen shapes incorporated in bridge construction, and in small groups design, build,...
Mathematics TEKS Toolkit
Grade 6: Exploring c/d = pi
Introduce your math class to the perimeter of a circle. Teach them that pi describes the relationship between the circumference and the diameter. As a hands-on investigation, pairs or small groups use string to compare these two values...
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Lessons for Atlatl Users with Some Experience-Grade 6
Sixth graders experiment with an atlatl and dart. In this sixth grade data management mathematics lesson, 6th graders explore and determine the most suitable methods of displaying data collected from their experimentation with...
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A Prime Investigation wtih 7, 11, and 13
Ninth graders investigate divisibility rules. In this middle school mathematics/Algebra I lesson, 9th graders explore the divisibility rules of 7, 11, and 13. Students examine certain six-digit numbers that are divisible by...
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Money Math: Lessons for Life
Young scholars explore money as it applies to salary, paychecks, and taxes. In this essential mathematics instructional activity, students explore how math is used in various careers, how income takes are calculated and other important...
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Bouncing off the Wall
Students watch a video clips before problem solving the use of angles in real world situations. They problem solve using spatial reasoning while connecting math to a sports activity that investigates the path of a bouncing ball.
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Science as a Source of Social Controversy
Students research the two opposing views and biographical information about Ptolemy and Copernicus in order to be familiar with the societal viewpoints that influenced the thinking of these two scientists. Students role-play supporters...
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Applying Proportionality in Scale Drawings
Sixth graders examine a blue print and discuss the reasoning behind using blue prints. In this proportionality lesson, students collaborate with their teammates to create a scale drawing. Once that is complete, 6th graders write a...
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Layers of the Earth: Plate Tectonics
Sixth graders participate in a lesson that is about investigating the different layers of the earth and defining how the plates move over the mantle. They engage in a variety of activities and use mathematics to create projects to...
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Calculation the Cricumference of Earth using "Google Earth"
Eighth graders investigate properties of circles. For this eight grade mathematics lesson, 8th graders apply proportional reasoning to data gathered with “Google Earth” to calculate equatorial and polar circumference of the...
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Planets in Proportion
Learners apply estimation strategies and proportional reasoning to determine a scale comparing the planetary bodies to Earth. They convert measurements of time and distance using scientific notation. Both the metric and customary units...
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Congruent Trianges - Is This Enough Information?
Seventh graders determine whether two triangles are congruent and provide an explanation to why they are not. They apply concepts of measurement of angles and collect evidence of congruent angles in the world.
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Simple Harmonic Motion with Dr. DAQ
Students study the work and accomplishment of Galileo. In this physics lesson, students calculate the period of a pendulum's using a mathematical equation. They explain the different factors affecting its period.
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Personal Development - Setting Goals to Achieve Objectives
Students explore reasons for setting goals and techniques to achieve them. They discover the importance of setting goals, both short-range and long-range. Students assess their own situation and write specific goals to meet their...
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Multiplication With Decimals
In this multiplying decimals worksheet, students solve 24 multiplication problems. Each problem has a decimal being multiplied by a two or three-digit number.
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Multiplying Decimals
In this multiplying decimals worksheet, 5th graders solve 24 multiplication problems. In each problem students must multiply two decimals together.