In this critical thinking learning exercise, students answer five brain teaser questions that challenge them to use their common sense and basic knowledge.

In this math detective instructional activity, students cut apart and assemble a small 24 page book about alien invaders. Students go page by page, solving the math problems and skipping to the specified pages depending on their answers....

In this number sense worksheet, students solve 8 story problems in which clues are given for the ages of a group of people. Students figure out the age of each person in the story.