If you are looking for excellent full lessons for 3-6 grammar that include the Grammar farm (play yard or house...whatever miniature environment you are using) check out Montessori Research and Development Manual - Language Arts V Early Childhood.
Grammar boxes are used a bit later...depending on your child.
Montessori Research and Development Manual - Language Arts Volume 1
I chose to paint these boxes in the colour of each part of speech.
The elementary materials I am making for the boxes are with cards that are not colour coded as were our earlier works with the grammar farm.
There are a series of lessons for each box. My MR&D Manual (above) provides full details of all lessons/command cards, and word card content for each box, that you can make yourself.
You will also use your grammar symbols with these boxes.
There are great extensions at Montessori for Everyone here.
-The Montessori Elementary Material by Maria Montessori, is an amazing book that will give you instruction and full details for Montessori Grammar & Box Use to read it for free online visit here.
This is also a site with a set of free albums that is amazing also with LOTS of information and easy to follow lessons for Grammar & Language with full color illustrations!!!!here and decided to try and make a version that makes sense to me based on everything I have read. I think that these grammar boxes from Kid advance here or Alison's Montessori here are beautiful, and fairly priced considering what others charge for them - upwards to several hundred dollars...wow! So...given that we home school only 2 children, and only one is of the age at the moment for this material...I decided to come up with a solution...again...based on what I've seen others make.
Now one thing I also found a bit confusing was that the grammar boxes available to buy from a couple retailers listed above are in the original color scheme...so...the grammar box cards that we can purchase from Montessori for Everyone (my personal favorite cards) are in a different color scheme - not far off the old but a couple of changes were made for example... adjectives are no longer brown but blue. I do not know the reason for the change. The grammar cards for elementary are not colour coded, but these cards are still for the grammar farm that are?
I came up with a very simple and inexpensive way to construct the boxes quite true to form without individual slots labelled with colours.
So these are the parts for the Adjective box.
My husband took a 2x4 (use a nice one, or trim it up to get really nice straight edges) and riped it on the table saw to make a long wedge - the long triangular piece was then cut into 3'' wedges to form the card slots - the dividers are simple lattice molding cut down a bit to cover all four sides of the wedges, with two small pieces placed between the wedges.
The bottom is just a square of left over Masonite - but you can use whatever you have on hand to make a bottom. Everything is wood (carpenters) glued, and you could use tiny finish nails (and clamp) or in our case my husband pinned it together with tiny brads. I hope this doesn't sound complicated because it was so simple to make and sturdy.
I really liked the boxes that were painted in a solid color to match the part of speech. Montessori for Everyone kindly gives all the information you need to present this material. The cards are placed in the slots and the long space on top is used for command/lesson cards please see the video link above.
I really hope this is helpful!!!