Even though I believe in using great books as a cornerstone of my kid's education, I also know that worksheets and workbooks have a place. Specifically, their place is to help with skill building in the areas like math and spelling. Here are some skill building workbooks that I have found and discovered to be effective.
Super Awesome Free Phonics Text
Word Mastery by Florence Akin is technically not a workbook. Rather it is a phonics text from 1913. The pages consist of clean and uncluttered lists of words provide practice in specific sounds. My daughter likes to underline the words that she can read fluently, so to her, it's kind of a workbook.
Super Awesome Free Math Drills
The Math Minute series consists of several workbooks of 100 worksheets that students are challenged to complete in one minute. Each worksheet covers a variety of skills. I used them during my son's fourth grade year after we transitioned from one math program to another. I didn't use it during 5th grade because I didn't find a 5th grade version. This year, I am using this set of workbooks again during our morning table time and do not time it so my kids can worry about accuracy, not speed.
Fifth Grade (Boo, I can't find it, but I can find these Middle Grade Math Minutes)
Super Awesome Free Sentence Diagramming Workbook
This Sentence Diagramming workbook is my latest find. Sentence diagramming, along with any other type of formal grammar instruction, was out of style when I went through middle and high school, so it isn't a skill that I have learned. I did learn how to parse sentences using a crazy big syntax tree in my college linguistics class which finally helped me understand sentence structure, but it takes an entire sheet of paper to parse a sentence using a syntax tree. So, I'm hoping that sentence diagramming will be a nice, compact way to show sentence structure to my son without going through an entire ream of paper. So far, this workbook has been pretty easy to follow, but I'm not too far into it yet.
Super Awesome Free Pattern Block Mats
This cute pattern block activity book is space themed. The activities gradually get more challenging as the book progresses. My three year old enjoys the early activities where you match the pieces to the picture. The puzzles and games increase in difficulty so that the later puzzles are challenging to my oldest son.
How about you?