Students determine that two figures are similar or congruent by investigating figures that are similar and figures that are congruent. They prove that two figures are similar or congruent by using definitions, postulates, and theorems.

In this volume problem instructional activity, students determine the volume of various objects. They compare similar objects and determine the percent of increase and decrease of the surface area and volume. This one-page instructional...

Students listen to the teacher read the first 26 pages of the story, Something From Nothing, and discuss what predicting means, Students predict how Joesph might remember what his grandfather made him, now that the button is gone. They...

In this similar/congruent worksheet, students draw congruent shapes and shapes that are similar but not congruent. Students draw shapes on provided grids. 

Don't let congruent figures drag you down. Young mathematicians use an interactive to drag figures onto one another to determine if the figures are congruent.

Increase the level of assessment rigor with the test of performance tasks. Topics include similar triangles, trigonometric ratios, Law of Sines, Law of Cosines, and trigonometric problem solving. 

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...

What do a pair of stinky socks and a toy hamster have in common? The third lesson plan in an 11-part unit designed to accompany The Twits by Roald Dahl uses silly objects to teach about figurative language. Zany pranks and role play...

Illusions and allusions certainly sound similar but there is a world of difference in their meanings. The narrator of this short video distinguishes between these terms, defines them, and offers examples that are sure to engage viewers....

In this geometry learning exercise, students study diagrams with labels of common geometric figures. Students then answer 24 questions. Then they draw and label their own figures.

Is artesian water designed to be better, or is it just from wells similar to those in the city of Artesium? This experiment looks at many different types of bottled waters, including artesian. Using a soap mixture, scholars test to see...

Scholars learn about a series of three challenges when they design a bus system for a small town. They determine the bus routes and then figure out the best type of fuel to use before considering the cost of going electric. Learners...

Fifth graders are introduced to the figurative language using metaphors and similies. They identify the similarities and differences between the two and practice developing their own to use in their writing. They illustrate their...

"Life is like a box of chocolates. . ." "Barack is a Mac, Hillary is a PC." Literal and figurative analogies are featured in a presentation that models how to use analogies to bolster arguments.

Consisting of a thorough and straightforward list of poetry terminology, the first part of this presentation would be a good introduction to a poetry unit, or a review for an upcoming poetry project. The list of terms is quite extensive,...

Using a similar process from the first instructional activity in the series of finding area approximations, a measurement resource develops the proof of the area of a circle. The problem set contains a derivation of the proof of the...

The earth only revolves around one thing — and it's not any of your pupils. The instructional activity includes two activities dealing with the distance to the sun and the moon. First, scholars create a pin hole camera and use the rules...

What does the past have to do with today? Young scientists find that answer as they learn more about past chemists and their significant contributions to the field. Pupils use the Internet to research historical figures...

Theodore Roosevelt and the Marquis de Mores were both born in 1858, and both came to the Dakota territory in 1883, but they influenced the developing country of America in different ways. Elementary and middle schoolers apply written and...

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...

Apply perspective to similarity. Individuals learn about the Side Splitter Theorem by looking at perspective drawings. Pupils use the theorem and its corollary to find missing lengths in figures. Next, they practice using the theorem and...

Explore word relationships and the relationships between people with an interesting lesson. Learners practice pairing words that typically go together and write brief narratives using these words. They then go through a similar process,...

"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...

In this tangram worksheet, learners find the area of each tangram shape. Afterwards, they name each piece and find the area of combined figures. This one-page worksheet contains approximately 25 problems.