In this missing line length and missing angles instructional activity, students find measures of missing angles and find missing lengths. A reference web site is given for additional activities.

Circles are the foundation of many geometric concepts and extensions - a point that is thoroughly driven home in this extensive unit. Fundamental properties of circles are investigated (including sector area, angle measure, and...

What does it mean for a quadrilateral to be cyclic? Mathematicians first learn what it means for a quadrilateral to be cyclic. They then investigate angle measures and area in such a quadrilateral.

Give your scholars the support they need to work with formulas. A reference page offers definitions and picture examples of perimeter, area, surface area, volume, the Pythagorean theorem, a variety of shapes, and more. 

For this angle measurement worksheet, students complete 4 multiple choice problems, determining whether given angles measure 90, 180, 270 or 360 degrees. A reference web site is given for additional activities.

For this central angle worksheet, students calculate the missing central angles in a set of 4 circles. A reference web site is given for additional activities.

In this angles activity, students determine whether given angles are greater than, less than or equal to 90 degrees, checking the appropriate answer. A reference web site is given for additional activities.

In this geometry instructional activity, students practice finding the measure of 4 different angles. Students work independently as they refine their ability to correctly calculate the measure of an angle.

Sixth graders discuss the characteristics of specific angles and then use the information to to identify and estimate given angles. The class goes outside, identifies north, and turns a specified amount of degrees. Using a given compass,...

In this congruent triangles worksheet, students solve four multiple choice problems. Students determine which statement is the appropriate reasoning to say that two triangles are congruent.

When going for distance, does it make a difference at what angle you launch the rocket? Teams of three launch foam rockets, varying the launch angle and determining how far they flew. After conducting the series of flights three times,...

The Vandals, The Goths, and Saxons - sounds like a line-up for a punk show. But it's not! These are some of the Barbarian tribes that moved into Europe at the fall of the Roman Empire. This clear presentation describes several key...

Can you use triangles to create a circle? Learners develop the unit circle using right triangle trigonometry. They then use the unit circle to evaluate common sine and cosine values.

For this chemistry exam, physics pupils complete a series of multiple choice and short answer questions by completing calculations on speed, velocity, magnitude and inertia.

Students devise procedures for using a protractor to measure the number of degrees in an angle. They use inductive reasoning skills to construct their own method for effectively using the protractor to measure angles, as well as, make...

In this triangle instructional activity, students identify angles as either obtuse, right, straight or acute. A reference web site is given for additional activities.

In this angles worksheet, students measure and label angles as either acute, right, obtuse or straight. A reference web site is given for additional activities.

Get a better understanding of the trigonometric functions by taking a look at the flip side. Pupils create angles within a unit circle and compare the values of the standard trigonometric functions to their reciprocal functions. The...

Is there a relationship between the sign of sine and cosine and the angle on the unit circle? Scholars use an interactive to see the value of sine and cosine within different quadrants. they then use the information to determine the...

In this angles learning exercise, students identify a set of angles as either acute, right, obtuse or straight. A reference web site is given for additional activities.

In this triangles worksheet, students draw angles with given measurements and identify each as either acute, right, obtuse or straight. A reference web site is given for additional activities. 

In this angle worksheet, students estimate a set of angles within 15 degrees, then measure each angle and name it. A reference web site is given for additional activities.

In this angles worksheet, learners first estimate then measure and name a set of 3 given angles. A reference web site is given for additional activities.

For this angle worksheet, students first estimate, then measure within 15 degrees and name a set of 3 angles. A reference web site is given for additional activities.