Model geometric concepts through a hands-on approach. Learners apply similar triangle relationships to solve for an unknown side length. Before they find the solution, they describe the transformation to help identify corresponding sides.

This is great go-to activity for those spring or fall days when the weather beckons your geometry class outside. Learners start with a small tree, devising strategies to accurately estimate the leaf count. They must then tackle the...

Explore linear and square dimensions by comparing areas of similar figures. A creative set of five activities designed for elementary through high school classes asks young scholars to compare areas of specific polygons. The first two...

Don't be so dense that light bends around you; study the relationship between mass and volume instead. Young chemists measure the density of a variety of liquids and solids. A reading passage and analysis questions introduce pupils to...

Challenge your classes while developing their problem-solving skills. A square is divided neatly into four equal triangles by its diagonals until one diagonal is moved from a vertex to the midpoint of one side. Now, scholars must devise...

"Timid, scared, terrified." High school scholars examine words, their denotations and connotations, in a series of exercises that use lines from Shakespeare to explore figurative language and word relationships. Participants then...

While it may seem incredibly obvious to the geometry student that congruent sides make congruent triangles, the proving of this by definition actually takes a bit of work. This exercise steps the class through this kind of proof by...

An excellent lesson that encourages students to discover how complex figures can be broken into simpler shapes when measuring area. Working with block letters, learners are given the freedom to develop their own strategies for...

Young mathematicians investigate the use of symmetry in graphic design. After first learning about reflection, translational, and rotational symmetry, children use this new knowledge to identify symmetry in letters of the...

Class members identify gender-specific roles and expectations in American society today by surveying adults, examining modern entertainment, and researching historical figures.

This is an interesting geometry problem. Given the figure, find the area of a triangle that is created by the intersecting lines. The solution requires one to use what he/she knows about coordinate geometry, as well as triangle...

Taxi! Have your travelers figure out how far they can go in a taxi for $10.00. They must account for the mileage rate and tip in their calculation. They can set up a table or make an equation to solve for the exact mileage they can...

After learning that the sum of interior angles for triangles is 108 degrees, take it further to show that the sum of angles in any polygon is the same! Using hexagons, pupils practice finding the measure of the six congruent angles. Make...

Whodunnit? Find out who killed Mr. Brooks through a logical examination of evidence. Class members fill out a couple of data tables to help them pin down the suspect. After they've figured out just who the culprit is, pupils compose...

Geometric volume calculations are brought into the real world in a quick set of application problems. Learners are asked to help a patient figure out how to drink a prescribed amount of water both at work and at home. This activity...

The story "Santa's Dirty Socks" provides learners an example of a search algorithm that uses a divide and conquer system similar to a binary search algorithm. The included questions expand upon the concepts that follow the story.

Although the ideas on how to implement the skill RI.9-10.2 are lacking, the assessment would work well for challenging learners to summarize, and identify the main ideas of presidential speeches that are of similar topics. One could use...

Similar to the game duck, duck, goose, assemble your class in a circle. Choose a number range (within ten numbers) begin walking around the circle counting and select a child by tapping her. The child then picks up the counting sequence...

It’s poetry T.I.M.E! Individuals use the T.I.M.E. format (T = Title, thought, and theme;  I = Imagery and figurative language; M = music and sound; E = emotion) to study a poet, collect poems that have a similar theme, and create a...

Geometry students will be ecstatic about these engaging and enlightening end-of-the-year projects! Types of project ideas include interviewing a geometer, an ABCs of geometry poster, an engineering lab report, and origami work. 

Scholars stretch their writing muscles with an exercise that asks them to describe the sky using similes and metaphors. 

Encourage respect, responsibility, and caring within your classroom with a collection of lessons that spark dialogue and self reflection. To address character traits, lessons touch on topics such as staying safe in the...

One step at a time! A seemingly linear relationship becomes an entirely new type of function. Young scholars build their understanding of step functions by completing a three-stage activity that incorporates multiple representations of...

Make sure you are well-informed before embarking on a study of Rosencrantz and Guildenstern Are Dead. This resource includes an analysis of the text that a teacher can use to prepare a unit of study. It covers plot elements, themes,...