This is my absolute favorite lesson idea so far, and it's a simple concept.
The directions for the group version is in the link, but converting it to a one-person game is just as easy!
Here are some example questions I used for a workshop:
MATH
1. 2+2=? (1 point)
2. (-2)x4=? (1 point)
3. 3 quarters + 1 $5 + 2 dimes + 1 $1 =? (1 point)
4. What is the area of a triangle? (2 points)
5. What does the E stand for in PEMDAS? (2 points)
6. What are the coordinates of the "origin"? (2 points)
7. What is the sum of the angles in a triangle? (3 points)
8. What is the volume of a rectangular prism? (3 points)
9. What is one way to use change to make a dollar? (1 point)
10. What is the A-S-A theorem of triangles? (3 points)
SCIENCE
1. What is at the center of our solar sstem? (1 point)
2. An insect has how many legs? (1 point)
3. What do plants produce? (1 point)
4. What is ecology the study of? (3 points)
5. Newton's first law of motion (3 points)
6. Give an example of an oviparous animal (3 points)
7. What is Earth's "sister" planet? (2 points)
8. Describe evaporation (2 points) 9. Point to your tibia bone (3 points)
10. What is conduction? (2 points)
ENGLISH
1. Define "Aspiration" (2 points)
2. Who wrote the Tell Tale Heart? (1 point)
3. Give an example of personification (1 point)
4. Character that said, "To be, or not to be; that is the question" (2 points)
5. During which period was To Kill A Mockingbird set in? (3 points)
6. How many letters are in the English alphabet? (1 point)
7. Give an example of five verbs (1 point)
8. One of Ponyboy's older brothers (3 points)
9. What is necessary to make a complete sentence? (2 points)
10. What is the time and place of a story called? (2 points)
SOCIAL STUDIES
1. Which war was known to use trenches? (2 points)
2. What is the capital of the United States of America? (1 point)
3. Where was Ellis Island? (2 points)
4. What was the Boston Tea Party? (2 points)
5. When was the Great Depression? (2 points)
6. Historically, what was the North Star used for? (1 point)
7. What is a guillotine? (3 points)
8. Which holiday is associated with the Pilgrims? (1 point)
9. What are Jim Crow laws? (3 points)
10. What is written in the first amendment? (3 points)