Collaboration between AI and expert human intelligence has also seen instrumental advancements. From enhancing algorithm designs that help generate keywords to combining Artificial Intelligence (AI) and Expert Intelligence (EI), these two complementary sources of intelligence have delivered significant advances in subject-specific keyword discovery.

Teachers and parents need to facilitate the effective and responsible use of these tools. They need to ensure that students understand that these tools are learning aids and not complete substitutes for learning the language. The aim should always be to attain proficiency in comprehending, speaking, and writing the English language.

The 'Kids on the Yard' and homeschooling reading curriculum method also teaches resilience and self-motivation. The outside distractions or comprehending complex vocabulary alone can be challenging and can help children learn to overcome their struggles independently. However, parents must be available for guidance to ensure that learning is a supportive and reassuring experience.

Despite their benefits, a challenge presented by online grammar checkers is the risk of over-reliance. They should be more a guide than a crutch. Their main goal should be building language proficiency among students.

Moreover, adding efforts like weekly library trips, reading challenges, or treasure hunts centered around books to your homeschooling routine can keep children intrigued and motivated. Pairing these fun experiences with yard playtime makes learning more dynamic and enjoyable.

Another significant development is the use of semantic analysis in keyword discovery, where the search for information goes beyond just keyword matching. Semantic searching understands the intent and contextual meaning of search phrases, yielding more accurate and relevant results.

Before integrating the new strategy, a baseline measurement was taken to understand students' reading comprehension skills. About 70% of the students were found to be performing below grade level, with common issues being difficulty in understanding complex sentences, identifying the central idea and drawing inferences.

In conclusion, the introduction of critical thinking exercises in teaching reading comprehension is a potent approach to equipping students with the necessary skills to navigate the informational world. By nurturing analytical thinkers, this method ensures students' reading comprehension improves, as they will delve deeper into written materials. However, a balanced integration of this approach with traditional teaching methods ensures more effective learning experiences. As further improvements to this teaching approach continue, the future holds promise for more enhanced reading comprehension levels and, ultimately, learners better prepared for the multifaceted informational world.

The teacher curated online reading passages according to the individual learning needs of the students. For instance, students struggling with vocabulary were given passages that emphasized new words and their usage in context. Students who had difficulty understanding the context or flow of passages were assigned texts with interactive tools, such as pop-up definitions and guided questions.

To sum up, 'Kids on the Yard' is an exciting way to make the homeschooling reading curriculum more interactive and efficient. It can motivate children to read more often, improve their literacy skills, and help them relate their reading material to life. Not only does this approach support independent learning, but it also prepares children for lifelong success in reading – a skill integral to virtually all facets of education and beyond.

Hence, the future landscape of subject-specific keyword discovery looks promising, never stagnant, and ever-progressive. It is continuously setting new paradigms for information search, discovery, and research, making it an exciting field to watch.

Both a survey of relevant literature and classroom observations indicate that these exercises come in handy in improving students' reading comprehension. For instance, summarizing written texts, one of the common exercises, requires students not only to understand the materials' core message but also to synthesize information. As such, it stretches the students' comprehension skills, making them more adept at understanding complex ideas and information.

Homeschooling is an increasingly popular choice for parents today, owing to various reasons such as flexibility of schedule, personalized learning environments, and the possibility of infusing values and beliefs into the curriculum. A pivotal part of this homeschooling journey is developing a reading curriculum that not only addresses literacy skills but also fosters love for reading. Integrating practical activities like 'Kids on the Yard' into the curriculum adds a dynamic approach to homeschooling for children.

One such example is Elsevier's AI Lab and their collaboration with universities to create an AI model that generates pertinent keywords. Using AI, the model learns from millions of research articles and generates smart keyword suggestions based on the document’s topic.