Trigonometry teachers - this is a very useful tool for my students, even in this day and age of handheld calculators! This chart has the sine, cosine, and tangent of every whole-numbered angle from 0 to 90 degrees.
I find it invaluable for my students to use this chart at first, and then they realize that the buttons on their calculator really help save time. Furthermore, when I introduce the inverse trigonometric functions, I use this chart before teaching how the inverse sine, cosine, and tangent buttons work on the calculator. For instance, if a student sees the equation sin x = 0.72, I have them look in the "sine" column for the closest match to 0.72, and read off the corresponding angle, which is about 46 degrees. Later, I have the students try the inverse sine of 0.72 on their calculators, and I find they really like the confirmation of what they saw on the chart.
The preview file is a pdf so you can see exactly what you're getting; the product file is a word document, which you may edit for your students.
keywords: trigonometry chart, trigonometry ratios, trigonometry table, table, ratios, chart, sohcahtoa, Jonnard