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Algodoo is a great tool for learners to enjoy visual representations of physics in motion. Similarly, like many sandbox simulations that allows the users to experiment different concepts of physics, its interface is friendly for any learner using this application to develop 2-D models of basic to advanced concepts. With the given tutorials for learners to use the basics of Algodoo is provided for the student, it becomes the scaffolding step for creating more complex demonstrations and models for the properties of physics to take place.

Due to the steep learning curve I recommend introducing this in grade 4 and continuing with it from there. Next Gen science standards require modelling, and this could be a very useful way to do that in many cases.

Honestly, I wish I was a teacher so that I COULD use this with students. The interface has a bit of a learning curve, as there are combinations of navigation menu items and right-click context menu items that are not immediately obvious. However, the interface is no more complicated than Microsoft Word or some video game menus, so it wouldn't be any great obstacle. The only downside is that it is 2-D, as 3-D modeling would open up new ways of interacting with the scenes. However, the concepts taught are spot on.