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Orthocenter Of a Triangle
Students find the orthocenter of a triangle. In this geometry lesson, students identify where the altitudes meet in a triangle. They use Cabri software to explore acute, obtuse and right triangles.
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Why can't We Use SSA to Prove Triangles Congruent?
Students investigate triangles and congruences. In this geometry lesson plan, students differentiate between inductive and deductive reasoning. They differentiate between similar and congruent triangles.
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The Ruler, The King of Measurement
First graders learn how use a ruler to measure common items. In this measurement lesson, 1st graders examine the numerical markings on rulers and learn that each number stands for a unit of measure. They measure 5 classroom items after...
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Compound Locus
Learners investigate circles and compound locus. In this geometry lesson, students identify the distance from a point to a line. They use Cabri software to create lines and circles.
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Side Splitter Triangles
Learners investigate the side splitter theorem. For this geometry lesson, students estimate and solve problems dealing with ratios and proportions. They identify angles created by lines that are parallel.
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Exploring the Slopes of Parallel and Perpendicular Lines
Students calculate the slope of parallel and perpendicular lines.In this algebra lesson, students differentiate between parallel and perpendicular lines. They graph their lines using the slope of the equation.
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Exploring the Slopes of Parallel and Perpendicular Lines.
Students find the slopes for perpendicular and parallel lines. In this geometry lesson, students differentiate between parallel and perpendicular lines. They use Cabri software to create lines to compare.
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Making Cents of Density
Middle schoolers utilize their knowledge of the physical properties of matter such as mass, volume, and density to solve a problem. They utilize the scientific method to solve a problem. Pupils analyze their data to determine whether...
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A Plane Old Time
Fourth graders become familiar with a chart and use the information to create a flight plan. In this flight plan lesson plan, 4th graders access background knowledge of the role of flight controllers and the number concepts they use. ...
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Pythagorean Theorem
Eighth graders draw right triangles and identify the parts of a right triangle: right angle, interior and exterior angles, hypotenuse and legs. They predict and identify any relationships that exist between the sides of a right...
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Interior/Exterior Polygon Angles and Tessellations
Students discover the sum of the interior and exterior angles of several polygons. In this Geometers sketchpad instructional activity, students work in groups to find the stated measurements of triangles, quadrilaterals, pentagons and...
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Let's Go Value Shopping
Students count, figure change, and find the value of saving in a classroom store.
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Free Standing Structures
Students investigate how to create a free standing structure. In this mathematics lesson, small groups of students demonstate how to build the tallest structure while spending the least amount of money on materials.
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Water Treatment Plant Tour
Students define vocabulary related to geometry and calculate the volume. In this geometry lesson, students calculate flow rates, and volume as it relates to a water plant facility. They calculate the volume of three dimensional shapes...
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Distance Formula
Students determine the distance between two points. In this distance formula lesson, groups of students determine the distance between points in real life situations. They calculate the distance from one point in the school to another.
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Trading in Subtraction
Second graders solve two-digit subtraction problems without trades using counters and by modeling trades with base-ten blocks. They pair in groups and students open the "Counters Open Mat". Students are given a problem, such as: there...
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Diving, Flying, & Climbing
Students explore Boyle's Law. In this Boyle's Law lesson, students complete problems involving Boyle's Law. They examine the effects of Boyle's Law upon the human body. Students use the Internet to complete a lab activity.
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Mixed Numbers
Students rewrite and solve problems using mixed numbers. For this algebra lesson, students solve fractions using mixed numbers by addition and subtraction. They relate the use of mixed numbers to real life.
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Recipe For Disaster
Learners play an interactive game online to learn ratios. In this statistics lesson, students solve problems in an online game about ratio and relating statistics to the real world. This lesson provides hands on as well as teaching time.
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The Surface Area of a Cylinder
Students find the circumference and diameter of several circles and calculate the surface area of cylinders. In this surface area of a cylinder lesson plan, students use rectangles and lids to make several cylinders. They calculate the...
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Make a Match
Second graders examine the relationship between addition and subtraction. In this number sense instructional activity, 2nd graders practice their computation skills and use various strategies (including manipulatives and calculators) to...
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Lines of Symmetry
First graders create symmetrical designs using a computer program. In this lines of symmetry lesson, 1st graders review their symmetrical designs and discuss other ways symmetrical designs can be made. Students work in pairs and use...
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Comparison Subtraction Stories
Second graders create stories that model comparison subtraction while using the environmental mats. They suggest situations in which they compare numbers. For example, if one student has 6 nickels and another child has 14 nickels,...
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Money
Third graders review the values of quarters, dimes, nickels, and pennies. They discuss how the different types of coins can equal the same amount. Students give examples of ways to make a given amount under $1.00. They explain what the...