https://www.allkidsnetwork.com/ Educational worksheets as well as crafts, coloring, pages, and other activities. Also has templates to generate your own worksheet to fit your needs.
https://eduprintables.com/ This is the Pinterest of educational resources. There are over 20 pages of educational and creative activities for children of all ages. This includes coloring pages, educational puzzles, vocabulary, flashcards, videos, and more.
https://www.quizlet.com Quizlet allows you to search their platform for activities and resources across any subject of interest. Search for “Fundations” flash cards, which help teach children phonics.
https://www.classroomcereal.com/ Multi-part stories that help kids practice grammar fundamentals. (Click the “Stories” tab) Kids will read the story and then find the grammar errors. There are 20 stories, each with 5 parts.
https://www.englishforeveryone.org/ English For Everyone has an abundance of free worksheets for different topics in Language Arts, including Reading Comprehension, Verb Tenses, Sentence Completion, Contractions, Irregular Verbs, etc.
http://www.startwithabook.org A resource that allows parents to choose children’s books based on various topics, such as Arts and Artists; Bugs, Birds, and Animals; Builders and Buildings; Dinosaurs; Music and Musicians; Nature; and Weather. The website also offers two 5-day DIY science camps devoted to learning about stars and the solar system, as well as rivers and streams in your community.