Build upon the Pythagorean Theorem with the Law of Cosines. The 10th part of a 16-part series introduces the Law of Cosines. Class members use the the geometric representation of the Pythagorean Theorem to develop a proof of the Law of...

Learners examine objects and find their volumes using geometric formulas in the 21st installment of this 25-part module. Objects take the shape of truncated cones and pyramids, and individuals apply concepts of similar triangles to find...

Show scholars that if they can add two multi-digit numbers, they can add four! They complete 20 practice problems adding three and four-digit numbers. All the equations have four addends and include units. All numbers are whole numbers....

Before your scholars know how to multiply side lengths to find an area, give them some practice in simply counting units. They examine shapes that have already been segmented into units, counting them to get the area. There are three...

Take a seat on the parade route with a holiday-themed set of word problems. Young mathematicians answer questions based on the annual Macy's Thanksgiving Parade in New York City, including finding the average number of members in a...

Similar shapes are all about the scale. Given seven problems, pupils use scale factors to determine measurements within similar shapes. While solving the problem, scholars also determine whether two figures are similar and use...

No need for radians to be mysterious. Scholars use a cardboard cut-out of a unit circle and measure the radius and circumference using a piece of string. They consider the number of radii needed to cover the entire circumference and use...

Name that statistic! Classmates each write their name and the number of letters in it on a sticky note to place on the board. As a class, they determine the median, mode, and range of the name lengths, and create a dot plot of the data....

Explore two and three-dimensional shapes. Learners first examine three 2-D shapes and determine which of three 3-D figures could have made that shape. The wording here is a bit confusing; make sure your kids understand what it is...

Second graders examine human body movements by measuring the choreography of a dance.  In this physical education lesson plan, 2nd graders participate in a creative dance which is based on specific movements of each limb, which...

Sixth graders investigate triangles and the inequality theorem. They will collaborate in groups to determine the length of a longest side of a triangle. Then relate the size of the triangle to its angles using protractors, yard sticks,...

Learners explore perimeter. In this geometry and measurement lesson, students create squares and rectangles using given perimeters. Learners construct four sided shapes with given perimeters using the computer program "Math Keys:...

For this measuring worksheet, students use a centimeter ruler to measure the perimeter of 3 figures. They then draw 4 shapes in the grid on the page.

Students experience a positive science experiment and study fundamental concepts of measurement.

In this converting metric units of length worksheet, young scholars convert thirty metric units of length as directed by following the instructions on the worksheet.

In this math worksheet, learners practice the skill of converting measurements. The answers are found through using the right conversion formula.

In this length measurements learning exercise, learners play a game with a partner that helps them measure the three lengths on the pie charts. Students spin a pencil or paper clip to find the measurement and use a ruler to draw the...

In this perimeter worksheet, students determine the perimeter of parallelograms.  This one-page worksheet contains 6 problems.  Answers are provided on the last page.

Student observes and measures the variability in the length of the forearm and the length of the foot and to test a common belief that the length of the foot is equal to the length of the forearm.

Mathematicians measure intersecting lines-and circles, and create chords. In this geometry instructional activity, students explore interrior and exterior chords created by tangent and secant lines. These segments can be inside the...

Students use unconventional units of measure to estimate and measure.

In this error in measurement quiz, students read given problems and determine the percent of error, find the absolute error, the relative error, and identify the limits. This one-page instructional activity contains ten problems.

Ninth graders investigate the segment addition postulate.  In this geometry lesson, 9th graders explore the difference between equal and congruent in relation to segment length.  The lesson includes an algebra application and a...

Students determine the pattern (length and direction) of shadows cast by sunlight during several month period, and develop interpretation of daily and seasonal patterns and variations observed.