Trigonometric Ratios Teacher Resources
Find Trigonometric Ratios educational ideas and activities
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Indirect Measurement Technique: Using Trigonometric Ratios
Students explore the concept of trigonometric ratios. In this trigonometric ratios activity, students use trigonometric ratios and the angle of elevation/depression to determine the height of an object. Students use their clinometer made from a protractor, string, hex nut, and tape to determine the angle of depression/elevation of an object or building.
9th - 12th Math 14 Views 86 Downloads
Surveying the Ancient World
Astrolabes have been used by explorers and astronomers throughout the ages. But how exactly do they work and what can a young mathematician do with one today? Students will build a simple version of this tool and then using the altitude, measure the height of various objects.
9th - 12th Math 15 Views 11 Downloads CCSS: Designed
Similar Parts Investigation
How tall is that flagpole? Your pupils might want to stand on each other's shoulders to answer this, but this activity is all about using the math knowledge they already possess. Using right triangle trigonometric ratios (SOH CAH TOA) and the Pythagorean theorem, young geometers solve real-world problems.
9th - 11th Math 15 Views 28 Downloads CCSS: Designed
I Can Determine The Height Of A Rocket!
Maybe your class wouldn't be taking a field trip to a rocket launching site, but the ideas presented here could be used for a new by clock tower, tree, or telephone pole. Learners use trigonometric ratios to determine the heights of tall structures.
9th - 12th Math 3 Views 35 Downloads CCSS: Designed
How Do You Find a Missing Side of a Right Triangle Using Sine?
What's a trigonometric ratio? It is a ratio between two sides of a right triangle. In this problem, find sin(A) in the given right triangle. Use the ratio of the opposite side divided by the hypotenuse to find sin(A). The instructor draws a diagram and labels all the sides and angles.
4 mins 6th - 11th Math 3 Views 1 Download
Finding Trigonometric Ratios
In this finding trigonometric ratios worksheet, 11th graders solve and complete 22 various types of problems. First, they find the value of each trigonometric ratio to the nearest ten-thousandth. Then, students use a calculator to find the value of each ratio.
11th Math 3 Views 23 Downloads
Investigating Trigonometric Ratios Through Similar Right Triangles
Students identify similar and congruent right triangles. In this geometry lesson, students use trigonometric ratios to identify missing sides and angles of a triangle. They differentiate similar and congruent triangles.
9th - 10th Math 3 Views 52 Downloads
New Review How Tall is It?
Your collaborative geometry learners use trigonometric ratios and a clinometer that they assemble themselves to indirectly measure the height of a flag pole and other objects. Then they create a presentation to explain the process they used and present it to their classmates in a gallery walk.
9th - 11th Math 3 Views 0 Downloads CCSS: Designed
Finding the Area of an Equilateral Triangle
The problem seems simple: find the area of the equilateral triangle whose sides are each length 1. In fact, this same problem is solved in 8th grade, addressing a different Common Core standard, using the formula for area of a triangle to solve.
9th - 11th Math 12 Views 8 Downloads CCSS: Designed
How Do You Find the Cosine of an Angle in a Right Triangle?
What's a trigonometric ratio? It is a ratio between two sides of a right triangle. In this problem, find cosine(A) in the given right triangle. Use the ratio of the adjacent side divided by the hypotenuse to find cos(A). The instructor draws a diagram and labels all the sides and angles.
3 mins 7th - 11th Math 3 Views 0 Downloads
How Do You Find the Tangent of an Angle in a Right Triangle?
What's a trigonometric ratio? It is a ratio between two sides of a right triangle. In this problem, find tangent(A) in the given right triangle. Use the ratio of the opposite side divided by the adjacent side to find tan(A). The instructor draws a diagram and labels all the sides and angles.
3 mins 6th - 11th Math 3 Views 0 Downloads
New Review Are You Pulling My Trig?
Build on students' knowledge about triangles with this introductory lesson plan on trigonometric ratios. After first exploring key terms in a scavenger hunt activity, students solve a series of guided and independent practice problems dealing with the sine, cosine, and tangent functions.
9th - 12th Math 3 Views 0 Downloads CCSS: Designed
Ratios in Right Triangles
Learners calculate the sides of right triangles in this trigonometric ratios lesson. They use Cabri Jr. software and TI-83 or TI-84 calculators to find the side lengths and their ratios to each other for various triangles. The provided chart helps your learners see patterns in the ratios.
9th - 12th Math 3 Views 1 Download CCSS: Designed
Review of Trig Ratios
In this trigonometric ratios worksheet, students solve and complete 10 various types of problems. First, they write the degrees listed in radian measure. Then, students find the exact ratios for each equation. They also find the value of x in each triangle and evaluate.
11th - Higher Ed Math 11 Views 92 Downloads
When is Tangent, tangent?
Students study the concept of tangent of a unit circle. In this unit circle lesson, students explore the mathematical history of the trigonometric ration, tangent, through an interactive date-gathering construction that simulates an experience that mirrors how values of trig functions may have been approximated.
9th - 12th Math 3 Views 30 Downloads
Use this complete lesson plan to introduce geometers to inverse trigonometric functions. Learners use trigonometric ratios to solve triangles when an angle measure is known, then explore using the inverse process when only side lengths are given.
9th - 11th Math 14 Views 27 Downloads CCSS: Designed