How can preschoolers learn prepositions of place in an easy way?
As you discovered this nice page, you can just print image cards about in front of - behind. You can show them in class for free!
Furthermore, you can print colorful or black-white worksheets that they can color and circle objects.
There are also nice free In front of - Behind Activities & Coloring pages to print!
Tip: All the image cards and the worksheets can fit in an A4 sheet perfectly!