demonstrating

"How did you vote in (UK also: at) the last election?"

"To get a good grade on the test, you need to answer the questions properly. "

"My friend told me there was something in the box, but I didn't know what it was yet. "

"To prepare for the big test, Sarah organized her study materials into folders, so she could easily find what she needed. "

"My daughter's teacher is very kind and helpful. "

"The teacher's explanation of the math problem was logical and easy to follow. "

"Can you demonstrate the new tools for us?"

"The teacher wrote the math problem on the whiteboard so the students could see it clearly. "

"We need to bring the balance of power into equation"

"My argument for staying late was that I needed extra time to finish my project. "

"The teacher gave a demonstration of how to solve quadratic equations. "

"My brother will participate in the school's fundraising walk. "