If you find yourself suddenly at home with your public school kids, your school district and teachers should be your primary sources of curriculum and instruction, but all the resources below are available to you as well. As homeschoolers, we have used every resource on this list at different times in our homeschool journey.
Dolch sight word tests for beginning readers
Sonlight Curriculum quick reading assessment for lower grades
Even if you don’t use this curriculum, it could give you a good idea of your student’s level
Math for Washington State public school students
Free math and more. You can set up student account and parent account and set grade levels.
Mainly math class resources, subscription-based.
Some information on what to teach when
AP tests, PSAT, SAT, SAT Subject Tests for high school students
For homeschoolers, but many phenomenal resources for high school students
Make a playlist of classical selections
The Read Aloud Handbook by Jim Trelease
I think every parent should read this book. Reading aloud to your children is the #1 best thing you can do for them academically, according to this book. The second half of the book gives great reading suggestions by approximate age.
Another great book for parents to read.