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Texas Instruments: Direct Variation With Powers: Surface Area and Volume
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.
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Texas Instruments: Dynamic Geometry: Basic Constructions
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...
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Texas Instruments: Subnivean Comfort
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...
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Texas Instruments: Real Life Real World Activity Surveyor
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....
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Texas Instruments: Enzyme Action: Testing Catalase Activity
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.
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Texas Instruments: Inscribed Angles Intercepting the Same Arc
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.
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Texas Instruments: Is an Equilateral Triangle a Special Case of Isosceles?
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...
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Texas Instruments: Describing One Variable Data
Students sort data and display it graphically using various plots. They also get familiarized with statistical concepts like measures of spread and central tendency.
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Texas Instruments: Jason: Leaf Cutting Ants Fungus Farmers
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.
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Texas Instruments: The Closer I Get to You Ti 83
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...
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Texas Instruments: Swing Your Can
Sinusoidal data already obtained by swinging a can over a meter stick and measuring time and displacement from its resting position using a CBR or CBL with a motion detector. Using the TI-Navigator, you can monitor their "real time"...
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Texas Instruments: Looking for Mr. Right Triangle
Navigator Activity: This is a review of the right triangle in the coordinate plane. Given two lines (2 really nice ones) the students write the equation of the 3rd line to create a right triangle. They find the vertices of the triangle...
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Texas Instruments: Forensics Case 8: Using Soil Characteristics to Link Suspects
In this activity, students measure pH, conductivity, and water absorbency of different samples of soil. They use these characteristic properties to identify soil samples. They use the physical and chemical characteristics of soil samples...
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Texas Instruments: Keep It Bottled Up: Linear Rates of Pressure Increase
In this activity, students' examine how temperature affects the rate of gas production during a chemical reaction. They measure this rate by recording the pressure variation using a pressure sensor and model the pressure data using a...
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Texas Instruments: Math Today When a Ruler Isn't Enough
This activity illustrates a real-life problem that uses trigonometry to solve for an unknown. students can use trigonometric ratios and inverse trigonometric relationships to determine the side of a triangle and the measure of the...
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Texas Instruments: What Goes Up: Position and Time for a Cart on a Ramp
In this activity, students' will use a motion detector to measure how the position of a cart on a ramp changes with time. They will then determine a parabolic model for the position data using the intercepts.
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Texas Instruments: Math Today for Ti Navigator Usa Money in Circulation
Students will determine the approximate number of $20 bills in circulation as of December 31, 2001, using percent and total number of bills from the USA TODAY Snapshot "USA money in circulation." Students will write their answers in...
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Texas Instruments: A Tall Story
In this activity, students can use the motion detector to measure their current height and obtain a mean value. They will use this and earlier data to plot a graph of height versus age. Students will identify the mathematical model that...
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Texas Instruments: The Pythagorean Theorem and Classifying Triangles
Students can use the converse of the Pythagorean Theorem to predict a triangle's classification. The Cabri Jr. App on the TI-83+/84+ family will be used to create triangles and find their measurements. Adobe PDF lab worksheets are included.
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Texas Instruments: Funnel Volumes: Volume and Weight
In this activity, students' will use a force sensor to measure the weight of a water filled funnel as it drains. They analyze the weight versus time data and describe it using concepts of slope and intercepts of a linear function.
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Texas Instruments: Grandparents and Special Friends Day
This lesson was designed for our Grandparents and Special Friends day. It can be used for any visitation day, or an open house. The lesson is designed to review percent of a whole and the sector of the circle representing the percentage....
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Texas Instruments: Math Today the New Color of Money
The USA TODAY Snapshot allows students to use scientific notation with real-life data. Students will work with large numbers when determining the height of a stack of $20 bills. Unit conversion will be used from one unit of measure to...
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Texas Instruments: Designing Hot and Cold Packs
in this activity, students calculate the molar enthalpy of dissolving for three ionic solids, and use this information to design a cold pack. In this experiment they measure the heat changes which occur from various salts dissolving in...
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Texas Instruments: How Tall? Describing Data With Statistical Plots
In this activity, students' will measure their heights using a motion detector and describe the data using the statistical concept called box plot.