Abstract: Computer-assisted instruction systems have been broadly applied to help students solving math word problems. However, these systems offer little help to students encountering multi-step ...

Abstract: Vector addition systems with states (VASS), also known as Petri nets, are a popular model of concurrent systems. Many problems from many areas reduce to the reachability problem for VASS, ...

Odyssey Math Tuition unveils 2026 expansions like team growth, AI features, online math courses, and franchises to aim for ...

Research links depression, also called major depressive disorder (MDD), with memory loss and brain fog. Treating depression can help memory improve. Memory problems and depression can reinforce each ...

Ankylosing spondylitis can lead to a higher risk of gum disease, including gingivitis and periodontitis. Medications for ankylosing spondylitis may weaken the immune system, increasing the risk of ...

It can also happen around your genitals and in your intestines. It’s common to get hives at the same time. This is rare. It happens when your body doesn’t make enough of a blood protein called C1 ...

When you count to 20, you start at 1 (or zero) and count on until you reach 20. Each number is one more than the last. When you count back from 20, you start at 20 and count back until you reach 1 (or ...

Incontinence means you have trouble controlling when you pee or poop. This can happen for many different reasons. It can be occasional and mild, or it can seriously interfere with your daily life.

When you find one more, you add one. For example, ‘one more’ than 2 is 3. When you find one less, you take one away. For example, ‘one less’ than 3 is 2. Why not see how much you know about this topic ...