Mastering Main Ideas

Read the following passage: "The process of photosynthesis is not just crucial for plants, but for all life on Earth. It provides the oxygen we breathe and the food we eat. Without it, life as we know it would not exist." What is the main idea of this passage?

• Photosynthesis is a process that plants undergo.

• Photosynthesis is essential for all life on Earth.

• Oxygen and food are important for life.

• Without plants, there would be no life on Earth.

Tags

CCSS.RI. 9-10.2

CCSS.RI.11-12.2

CCSS.RI.8.2

CCSS.RL.11-12.2

CCSS.RL.9-10.2

Consider this excerpt: "Smartphones have revolutionized communication, offering instant access to information and facilitating social connections across the globe." Summarize the main idea in one sentence.

• Smartphones provide information and help people connect.

• Smartphones are used for social media.

• Communication has changed over time.

• Information is important for global connections.

Tags

CCSS.RI. 9-10.2

CCSS.RI.8.2

CCSS.RL.11-12.2

CCSS.RL.8.2

CCSS.RL.9-10.2

In the text, "While the forest is home to many species, the most dominant are the towering redwood trees, which provide shelter and a complex ecosystem for a variety of wildlife," which is a supporting detail?

• The forest is home to many species.

• The redwood trees are the most dominant species in the forest.

• The forest provides shelter and a complex ecosystem.

• Wildlife thrives in the complex ecosystem of the forest.

Tags

CCSS.RI.7.2

CCSS.RI.8.2

CCSS.RL.11-12.2

CCSS.RL.8.1

CCSS.RL.9-10.2

A passage reads, "Despite the harsh conditions of the desert, certain plants and animals have adapted to survive in this environment, demonstrating the resilience of life." What is the implied main idea?

• Deserts have harsh conditions.

• Some plants and animals can adapt to any environment.

• Life is resilient and can adapt to harsh environments.

• Deserts are not suitable for most forms of life.

Tags

CCSS.RI. 9-10.2

CCSS.RI.11-12.2

CCSS.RI.8.2

CCSS.RL.11-12.2

CCSS.RL.9-10.2

The paragraph states, "The invention of the printing press in the 15th century led to a revolution in the spread of information, making books more accessible and increasing literacy rates." Identify the main idea.

• The printing press was invented in the 15th century.

• Books became more accessible after the invention of the printing press.

• The printing press caused a revolution in information dissemination and literacy.

• Literacy rates increased in the 15th century.

Tags

CCSS.RI. 9-10.2

CCSS.RI.11-12.2

CCSS.RI.8.2

CCSS.RL.8.2

CCSS.RL.9-10.2

Read the following sentence: "The primary goal of public education is to provide every child with the opportunity to succeed." What is the main idea?

• Public education is important.

• Every child should have the opportunity to succeed.

• The primary goal of public education is equal opportunity.

• Children need education to succeed.

Tags

CCSS.RI. 9-10.2

CCSS.RI.11-12.2

CCSS.RL.11-12.2

CCSS.RL.8.2

CCSS.RL.9-10.2

In the article about ocean pollution, the author discusses the impact of plastic waste on marine life, the contamination of seafood, and the economic effects on coastal communities. What is the main idea?

• Plastic waste affects marine life.

• Seafood is contaminated by ocean pollution.

• Ocean pollution has widespread and significant impacts.

• Coastal communities are economically affected by ocean pollution.

Tags

CCSS.RI. 9-10.2

CCSS.RI.11-12.2

CCSS.RI.8.2

CCSS.RL.11-12.2

CCSS.RL.9-10.2

A passage describes the life of bees in a hive, their roles, and how they work together to maintain the hive. It concludes with the importance of bees to the ecosystem. What is the main idea?

• Bees have different roles in the hive.

• Bees work together to maintain their hive.

• The life of bees in a hive is complex and organized.

• Bees are important to the ecosystem.

Tags

CCSS.RI. 9-10.2

CCSS.RI.11-12.2

CCSS.RL.11-12.2

CCSS.RL.8.2

CCSS.RL.9-10.2

The text reads, "Renewable energy sources such as wind and solar power are becoming more prevalent as a means to combat climate change and reduce reliance on fossil fuels." What is the main idea?

• Wind and solar power are types of renewable energy.

• Renewable energy is important for the environment.

• The use of renewable energy is growing to address climate change.

• Fossil fuels are harmful to the environment.

Tags

CCSS.RI. 9-10.2

CCSS.RI.11-12.2

CCSS.RL.11-12.2

CCSS.RL.8.2

CCSS.RL.9-10.2

An essay argues that while individual actions are important, systemic change is necessary to truly address environmental issues. What is the main idea?

• Individual actions can impact the environment.

• Systemic change is crucial for solving environmental issues.

• Environmental issues are difficult to address.

• Both individual and systemic actions are needed for environmental change.

Tags

CCSS.RI. 9-10.2

CCSS.RI.11-12.2

CCSS.RI.8.2

CCSS.RL.11-12.2

CCSS.RL.9-10.2