While the lesson focuses on right triangles, this activity offers a great way to practice the area of all triangles through an interactive webpage. The activity begins with the class taking a square paper and cutting in in half; can they...

Learners will like making a liquid layer cake to investigate the relative densities of various liquids: water, oil, and corn syrup. They will also introduce a few solid materials to find out how their densities compare. Standing alone,...

Students explore slope as a rate of change. For this eighth grade mathematics lesson, students investigate real-world problems to determine rate of change and transform it into a linear representation, thus determining slope. Students...

Will the time come when women outperform men at the Olympic Games?Scholars investigate gender differences in Olympic Games performances. They study the historical participation of women and then analyze data to determine if women will...

Should land be redistributed to former slaves after the Civil War? This essential question guides a lesson on the Reconstruction Era, as learners analyze primary sources (linked), recording responses on a worksheet (linked). To model the...

To wrap up your year of general chemistry, have lab groups compete in a tot wire chemical vapor deposition (HWCVD) competition. With their foundation in chemical nomenclature, stoichiometry, and gas laws, each group completes several...

Investigate the Remainder Theorem in this algebra lesson. Explore the relationship between the remainders of polynomial division and the function. Each of the four problems gets progressively more complicated. This might be a great...

Tiny particles can provide big learning opportunities! Middle school scientists explore the world of nanoparticles through reading, discussion, and experiment. Collaborative groups first apply nanotechnology to determine water...

Even in a world in which dozens of participants and curious onlookers record every controversial event, the basic facts of what happened are often in dispute. Revolution '67, Lesson 2 explores 1967 Newark, New Jersey using an examination...

Study everything about plants! The 12-part series of lessons continues with an examination of many aspects of plants. Components of the laboratory activity address the growth and structure of plants by evaluating familiar plants. The...

Find similarities in seemingly unlike organisms. The second instructional activity in a series of 12 builds the concept of a taxonomy and explores the use of a dichotomous key. Learners begin in part one by attempting to group a set of...

Students use words with similar meanings to analyze implied meanings. In this word connotation lesson, the teacher introduces the activity by asking students whether a new product should be advertised as "newfangled" or "cutting-edge." ...

What are the chances? Teach your classes to answer this question using mathematics. The first part of a three-day instructional activity on determining significance differences in experimental data prompts learners to analyze the...

Challenge individuals to compete as many tasks as possible. Lower-level tasks have pupils apply costs and rates to solve problems. Upper-level tasks add algebraic reasoning and conditional probability to the tasks.

Does your vote really count? This activity helps young voters learn about the electoral college through a TED talk, a helpful handout, discussion prompts, and then a role-playing activity that has participants simulating...

After reading about the history of tape dispensers, learners compare and contrast different dispenser designs. Next, teams work within budgetary and time constraints to design a better dispenser. When finished, each engineer reflects on...

Coffee drinkers, rejoice, here's a chance to win free coffee! Coffee club card holders have the chance to win free coffee every day for a year—but they must enter using their cards good for a free cup. Scholars weigh the chances of...

Eleventh graders solve problems dealing with rate of change. For this algebra lesson, 11th graders graph their rate of change problems and analyze it comparing their data with each other. They solve problems dealing with percent and rate...

Students explore the Constitution and The Bill of Rights including the process of the Convention throgh a variety of websites that examine the framers, venets leading up to and after the convention games and more.

Engineering design projects serve as great opportunities for collaborative problem solving. In this case, students work in small groups designing, building, and eventually testing a structure that meets a teacher-specified objective. It...

Wolves eat better when the bunny population increases, but how long does that last? A series of 12 biology lessons uses the sixth installment to explore the predator-prey relationship between bunny and wolf populations. Young scientists...

Students calculate the volume of solids. In this calculus lesson, students apply the Disk and Washer Method to solve for the volume of three dimensional objects. They calculate the volume caused by rotation that create...

Here is an impressive collection of lessons on sharks. In them, pupils undertake a serious study of sharks, their habitats, their social structure, and how humans adversely impact their existence. These lessons effectively integrate...

Students develop a fast travelling hull for a boat. In this physical science lesson plan, the students' hulls will be tested in a channel (built by the teacher) with a fan as the driving force. The students will compete for who has the...