Working with fractions that have unequal denominators is one of the most difficult concepts for young mathematicians to master. Here you will find a fine lesson plan that should help youngsters begin to get a grasp on this important...

An excellent way to reinforce math vocabulary in your classroom! Seventy-eight posters focus on number and number sense, computation and estimation, measurement, geometry, probability and statistics, and patterns, functions, and algebra.

High schoolers discuss and identify polygons and lines. In this geometry lesson, learners review liner, square and cubic units so they can incorporate it into the lesson on measurement and creating packing that are cost effective.

AP environmental science or college-level ecology classes will glean a tremendous amount of information on nutrient cycles from this detailed PowerPoint. It covers nutrient requirements, biogeochemcial cycles, decomposition rates, and...

Have you ever tried to light ice on fire? With methane hydrate, you can do exactly that. The ice forms with methane inside so it looks like ice, but is able to burn. The instructional activity uses group research and a hands-on activity...

Artists create clay masks using pre-formed molds, clay, glitter, feathers, gems, and paint. The expressive qualities of clay are perfect for creating many different types of face masks, from Mardi Gras glitter to Japanese Kabuki to...

Students explore invention and unveiling of world's first Ferris wheel, analyze photographs and poster of first Ferris wheel, and discuss engineering achievements of Ferris wheel, including how it worked, how it was built, and its...

Having a good working knowledge of math vocabulary is so important for learners as they progress through different levels of mathematical learning. Here is 125 pages worth of wonderfully constructed vocabulary and concept review cards....

Here is a very attractive and well-designed infographic explaining the Next Generation Science Standards (NGSS).

Give your pupils a front row seat at the biggest light show in the sky this year! In addition to admiring the total solar eclipse, young astronomers can explain the phenomenon with a little help from an inquiry-based lesson. The focus of...

Pattern blocks and shapes demonstrate how to add and subtract fractions. By aligning blocks with different shapes, learners figure out how to create a whole, and then how to add and delete parts from that whole.

How can you tell if fractions have equal value? Use various collaborative activities to demonstrate the ways to determine whether or not fractions are equivalent.

Augment your math curriculum with posters detailing several concepts important to second grade math. Each poster features one math term from geometry, measurement, probability and statistics, computation and estimation, numbers and...

Zeroes are more important than they look! A guided practice activity takes learners through the process of both scientific and decimal notation, culminating in more complex word problems and equations.

Yum! Using graham crackers, dried fruit sheets, and frosting, tectonics technicians demonstrate the different types of plate boundaries. If you want to encourage youngsters with an activity that is both educational and edible, then this...

The scientific issue of carbon-14 dating and exponential decay gets a statistics-based treatment in this problem. The class starts with a basic investigation of carbon content, but then branches out to questions of accuracy and...

Why does the United States have a bicameral voting system? Through role playing as either advocates for or against a cell phone policy in school, your learners will organize, vote, compromise, and experience first-hand the benefits of a...

Express division using different expressions. Individuals learn to write division expressions both with and without the division symbol in the 13th lesson plan of a 36-part series. They consider both numerical and algebraic expressions...

Reinforce math concepts using six worksheets that coincide with Virtual Math Girl's video instruction. The practice pages' objectives include writing equivalent fractions, decimal equivalents, and converting percents to decimals and...

Elementary learners explore coin mint dates. First, they listen to the book Alexander Who Used to be Rich Last Sunday by Judith Viorst. They then sort a collection of coins according to their mint date and put them in order from oldest...

Master fractions and mixed numbers. Third graders study pairs of fractions and mixed numbers, then circle the largest of the two. In the second section, fractions are represented by shaded shapes. Excellent for assisting learners who...

Young scholars use Cuisenaire rods to explore common denominators. In this fractions lesson, students build Cuisenaire representations of fractions, then find their equivalent counterparts to find the common denominator.

Don't just look at pictures of the Milky Way galaxy, build it with this hands-on activity in which scientists recreate the galaxy we live in.