Students consider the comparative sizes of the planets in the solar system. For this scale lesson, students select balls of different sizes to represent the planets in the solar system.

Rose's commute to school is a fractional distance. After she runs part of the way, your class needs to determine what fractional distance she ran. This problem explores fraction operations through modeling and computation. The...

Learners sometimes struggle to understand the concept of adding and subtracting integers. Help them see the why behind their answers using the interactive number line. The values change as individuals adjust the number line for each new...

What exactly does an engineer do? Learners find out through a lesson that asks them to solve a problem that affects a target population. Aspiring engineers learn the steps of the engineering design process as they apply it...

Looking for a strategy to organize the information related to transformations? The materials ask pupils to identify a sequence of rigid transformations, identify corresponding angles and sides, and write a congruence statement. They...

Why are right triangles so special? Pupils begin their study of right triangles by examining similar right triangles. Verifying through proofs, scholars recognize the three similar right triangles formed by drawing the altitude. Once...

Learners explore linear functions concretely using tables of values in a cooperative task. The concept of the values of linear functions changing by equal differences over equal intervals of one is emphasized. Learners will discover...

Turn your algebra learners into meteorologists. High schoolers are given three graphs that contain information about the weather in Santa Rosa, California during the month of February, 2012. Graph one shows temperatures, graph two...

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...

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.

Your learners will make good use of the Socratic method in a collaborative task that begins with an assumed solution and ends with deeper understanding of the idea of determining two triangles congruent.

Many phenomena in life are periodic in nature. A task-based lesson asks scholars to explore one of these phenomena. They collect data showing the sunrise time of a specific location over the period of a year. Using the data, they create...

How do you get a theorem named after you? Euler knows what it takes! The third lesson of five asks pupils to use an interactive activity to compare the faces, vertices, and edges of seven different three-dimensional solids. They use...

Because World War II encompassed most of the globe in one way or another, many pivotal battles and events are not as visible in the history books, leaving veterans of these conflicts feeling overlooked by more famous skirmishes. High...

Playing with mathematics can invoke curiosity and excitement. As pupils construct triangles with given criteria, they determine the necessary requirements to support similarity. After determining the criteria, they practice...

What do you get when you cross a circle and a line? One, two, or maybe no solutions! Teach learners to find solutions of quadratic and linear systems. Connect the visual representation of the graph to the abstract algebraic methods. 

The form of a quadratic function paints a picture of its graph. Young mathematicians explore this connection by locating key features on a graph and then writing the corresponding equations. The interactive tutorial highlights key...

Practice the strategy of letter-sound correspondence when identifying the short vowel /i/ sound in written and spoken words. The teacher recites the tongue twister "Icky insect is in icky sticky ink," while listeners repeat. Letter boxes...

Learners identify their beliefs and values and compare how these values relate to those of their community. They then determine how their values affect the roles they play in different situations. A quiz about values and beliefs...

Explore angle relationships created by parallel lines and transversals. The 13th lesson of 18 prompts scholars use transparency paper to discover angle relationships related to transversals. Learners find out that these angles pairs are...

Build confidence in proofs by proving a known property. Pupils explore two approaches to proving base angles of isosceles triangles are congruent: transformations and SAS. They then apply their understanding of the proof to more complex...

Tenth graders explore congruent triangles.  In this geometry activity, 10th graders investigate the conditions necessary to prove two triangles congruent.  The activity combines dry erase board activities and the use of...

Students observe and create artistic representations, technological images, and scientific diagrams. They explore the five senses, the structure and function of the corresponding organs, and how the senses are connected to the human brain.

Students discover early number concepts for numbers 1 through 5. In this number concepts lesson, students work in stations doing hands-on activities such as sorting colored blocks, stringing beads, and counting sticks. Students also...