Students practice solving very basic number sentences and recording their answers on a worksheet. Individually, they use different manipulatives to represent the sentence they solved. They also explain what steps were taken to solve...

Students use algebraic methods to represent and solve problems. Using a graphing calculator, students solve rational and inequality problems. They visually demonstrate solutions of functions through graphing. Students answer questions...

Seventh graders discover that there are multiple strategies to be used in problem solving. They explain a problem solving situation in their own words and determine a possible strategy for solving the problem.

Learners examine the laws concerning birth control. They express their opinions about the mandatory birth control use by substance users. They explain and justify their opinions.

Pupils examine the difference between a refundable tax credit and a nonrefundable tax credit. They explain how the nonrefundable child tax credit affects the tax liability. They apply the requirements to claim the child tax credit and...

Learners investigate the concepts related to the practice of multiplication facts. They look for number patterns in order to create an algorithm in order to find the correct sequencing of number patterning. The solutions are then...

In this precalculus worksheet, students examine the three problems critically and they find the solutions for the word problems.

Learners explain the importance of the five main biogeochemical cycles. In this chemistry lesson, students discuss how ions are transported in the environment. They design an experiment to collect data on eutrophication.

Young scholars analyze the three models on the origin of troglobitic fauna. In this life science lesson, students also consider how the Zonation model explains the fauna's origin. They also use the Internet to research solutional and...

Students explain the complexity of resource, land use, and conservation decisions.

Students explain the "So what?"-or the international implications-of factors that indicate the developmental status of a nation.

Students describe factors that affect the flow of rivers and explain their relationships. They research the factors involved in flooding events. describe the effects of present and future practices in land use, and river control methods.

Ninth graders study the origin and organization of the solar system. They investigate the Earth's place in the system and how planetary motions explain natural phenomena observable from Earth.

Students understand the process of bacterial transformation through experimentation. They describe the function of two important genes of the pBestLuc plasmid. They explain how to induce competence in E. coli cells.

Pupils explain and use ideal gas law and use the law to solve problems. They use conversion factors to convert mass to mol. Also students use stoichiometry skills previously learned.

Learners participate in an experiment in which they investigate the factors affecting the levels of nitrates in groundwater. Using examples, they explain the nitrogen cycle and identify the sources of chemical nitrogen fertilizers. ...

Students watch a section of a medical TV show and individually make a written recommendation of appropriate imaging techniques to be used and explain why they chose these techniques. They participate in a discussion revealing their...

Students are asked to explain the sequence of rock and sediment types and to devise an experiment to test this hypothesis. It is intended for students with some prior knowledge of oceanography, sedimentary geology, and plate tectonics...

Students are introduced to the concept of global climate change. Using data, they determine how much of the world is being affected by the increase in temperatures. They complete a worksheet and consider the evidence giving to them and...

Students investigate the effect that sterile and non-sterile environments have on growth of microbes. In this biology lesson, students observe the appearance of sample test tubes for 7 days. They explain why some test tubes' appearance...

Students explain the value of blood in trials.  In this DNA lesson students work together to collect and share information and ideas that they come up with after learning how to distinguish blood from other stains. 

Students explain the relationship among nutrition, infection and diseases. In this health science lesson, students suggest ways to break the nutrition-infection cycle. They brainstorm solutions to prevent infectious diseases in the...

Students examine and better explain a story by making a story pyramid.

Learners examine total eclipses of the Sun and their limited regions of totality. They explain that this limited view occurs because the Moon is close enough to us for different points on Earth to view it differently.