Students will measure the circumference and diameter of round objects. They will send in their measurements through TI-Navigator and discover the relationship between the circumference and diameter.

In this activity, students use the Cabri software to mark points, draw lines, construct parallel and perpendicular lines, angles, bisectors, and triangles. They learn how to use the tool to measure angles.

In this activity, students study English to Metric conversions. They investigate the relationship between inches and centimeters by measuring their height in these units and converting the measurements.

Students review the basic geometry definitions of segment and midpoint, and learn to use drawing and measurement tools. They explore changes in measurements as the figure is altered.

In this activity students will measure various body parts looking for the golden ratio. The teacher will collect the various measurements from the calculators and send an augmented list to the students calculators. Students will then...

In this investigation teams of students will explore variations in measured data. Students will drop an object from the same height 47 times and record the time for each drop.

The definition of square can determine whether it is a special case of a rectangle. Using the Cabri Jr. application, students can get a feel for why its definition makes sense. Along the way, they get experience with perpendiculars,...

Forest industry professionals make measurements in their work using tools including the Clinometer and the Biltmore Stick. These tools are based on the concepts of similar triangles and trigonometric ratios in a right triangle. This...

Students find the approximate surface area and volume of an apple, measuring circumference 3 ways, using the mean of the measurements to find the radius. Each students enters the results in a Table on the board.

Students use the Cabri Jr. application to draw triangles and construct perpendicular bisectors on the sides of a triangles. They study the properties of a triangle and understand how the measures of angles of a triangle is always 180...

Students measure and compare air temperatures inside and outside a snow shelter. If students choose to sleep in the shelter overnight they use the temperature measurements to confirm what they discover experientially- that snow is a...

Surveyors describe land parcels with distance and angle measurements, often given as compass headings. Once the boundaries of the land parcel are described, the surveyor can calculate the area of the land. This activity uses Cabri Jr....

In this activity, students use measuring tools and calculators to make half-sized drawings of themselves.

Students can use an O2 Gas Sensor to measure the amount of O2 produced when H2O2 is broken down by the enzyme catalase at different concentrations, pH values, and temperatures. They will also measure the enzyme's initial reaction rates.

Students investigate the properties of angles inscribed in a circle. They use the drawing and measurement tools of Cabri Jr. to draw and measure certain angles, and establish the relationship between angles that intercept the same arc.

The definition of isosceles triangle can determine whether an equilateral triangle is a special case of an isosceles triangle. Using the Cabri Jr. application, students can get a feel for which definition makes the most sense. Along the...

Students investigate the sum of the measures of the interior angles of a triangle. This activity explores interior angles, and their relationship with the exterior angles of a triangle [Requires Adobe Reader.]

Students sort data and display it graphically using various plots. They also get familiarized with statistical concepts like measures of spread and central tendency.

Rainforests at the Crossroads: Use a TI-73 Explorer to become familiar with a graphical technique for measuring the amount of leaves Leaf Cutter Ants chew. Measure the mass of a chewed leaf and then find its area.

Based off of the hit television show NUMB3RS, this activity is a very basic introduction to the tangent function and it's applications (such as measuring distances). Through this lesson, students will learn the definition of the tangent...

Here's a group activity your students can do to learn about rational functions. Students will use properties of reflections together with measuring tapes, mirrors, and masking tape to find a function that relates height of a reflection...

Scientists have developed an instrument called a barometer that can measure atmospheric pressure. In this activity, you will find out how a barometer works by building one yourself.

In this activity, students use a CBR 2 to measure the reaction time of catching a stick. They also learn how to interpret a box plot, and make a five number summary of a single variable data set.

students can use the Pythagorean Theorem and distance formula to determine unknown measurements.