High schoolers attempt an assessment task requiring them to find the radii of inscribed and circumscribed circles of a right triangle with given dimensions. They then evaluate provided sample responses to consider how to improve...

Second graders use data to graph information and draw conclusions. In this lesson on data analysis, 2nd graders practice gathering, sorting, comparing, and graphing data. Students differentiate data that can and cannot change over time.

Students utilyze a set number of DUPLO blocks to build a free-form construction project.

Learners use a balance to complete subtraction problems and weigh out the items they take away. For this subtraction lesson plan, students use a pan balance and record their equations.

Students observe and record the changes they see when adding heat and cold to objects. In this changes lesson plan, students experiment with different objects and see if heat and cold change the makeup of the object. They then record...

Students explore addition. In this math lesson, students discover how addition and subtraction are related. Students model related addition and subtraction facts.

Students investigate the correct mix of material types for compost. In this composting lesson, students explore the correct amounts of different types of materials to create a compost heap. Students then create a compost heap.

Your entire class works together to create an illustrated insect field guide. The intent is that they venture outside of the classroom, find a critter, and then research it using reference materials, insect books, and the Internet for...

For this atom worksheet, students read about Dalton's contributions to the structure of the atom. They answer five questions about Dalton's ideas, the law of multiple proportions and the law of definite proportions.

Emergine space engineers discover the area of complex geometric shapes. They find that, just as a spacecraft is composed of many smaller parts, so can polygons be broken into smaller shapes.

Students explore the value of money. In this money lesson, students investigating combining amounts of money and making change. Students count sets of money and make fair trades. Resources are provided.

High schoolers explain how the elements are arranged in the periodic table. In this chemistry lesson plan, students determine the subatomic particles for certain elements. They research the physical and chemical properties of an element...

Students explain why dissolved oxygen is important in aquatic ecosystems. They evaluate the optimal dissolved oxygen levels for living organisms.

Students identify the physical properties of items using the sense of touch. In this touch and discover lesson, students describe items.  Students sort items using a Venn diagram.

Students make a diorama.  In this insect lesson, students review what they know and what they need to know about insects. Students define conservation, discuss why it is important to conserve insects, and make an insect diorama.

Fifth graders connect their knowledge of polygons and polyhedrons. In this geometric shapes lesson, 5th graders identify and classify two- and three-dimensional objects. Students construct a polyhedron out of polygons and describe their...

Second graders examine two-dimensional shapes using their characteristics. In this shapes lesson, 2nd graders identify similarities and differences by using cut out shapes, diagrams, mirrors, and graphic organizers.

Learners create a food web mural about an ecosystem of the freshwater marsh. For this food web lesson plan, students write about the organisms and how each one depends on another.

Students explore the lattice method of mulitplication variances through the game "Multiplication Wrestling." They view a model of how to play the game and play three rounds, recording their patterns and discussing the strategies used to...

In this geometry worksheet, students calculate the areas of rectangles. They use the formula for area of a rectangle.

Fourth graders estimate various measurements. In this lesson plan on measurement, 4th graders estimate the length and mass of multiple objects. Students discuss the difference between a guess and a reasonable estimate and discuss using...

Young scholars study related addition and subtraction facts. For this math lesson, students use related addition and subtraction to solve problems. Young scholars use manipulatives to explore fact families.

Students examine the concepts of ecosystems and interdependence. They construct block pyramids to demonstrate interdependence, and map off an area to observe and identify animals. They create food chain mobiles and play a web of life game.

Students investigate the relationship between dissolved oxygen and organic materials and aquatic organisms. This is a 3-lesson series in which students explore dissolved oxygen and then design an experiment testing the effects of changes.