I second poles. They are cheap. I use landscaping timbers. They are not heavy, they have a flat edge so you can "stack" them if you like. They come in 8', I left some 8', and cut the others in half. You have to kind of study them when you buy them and pick out the straight ones. You can lay out all sorts of "games" w them. Just remember that when you start, any "challenge" you set-up has to "doable" to give them a sense of accomplishment - then increase the difficulty. Just working with them on the ground this way doesn't take a lot of energy - which she doesn't look like she can afford to burn in excess, but it livens up their mind.
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