Scratch Lessons Level 2

Melting Multiplication:

Project Page: https://scratch.mit.edu/projects/93913103/

This project has a script to make the sun move continuously across the stage. As he moves, you are trying to advance the snowman by correctly answering multiplication questions.

Try playing the game. Is it too hard, or too easy?

What could you change in the Sun's script to make the game easier/harder?

Remix this game for younger students to play. Explain how you did this.

Catch Me If You Can:

Project Page: https://scratch.mit.edu/projects/118298814/

1. Does it make any difference when one script has the “play chee chee sound” block in a different order? What does that tell you about the scripts?

2. Why does the game stop? How could you make the game go on longer?

3. Add a script to flash a message to the player of the game. Decide what it should say, and when it should appear.

4. Write out instructions for someone new to scratch to create their own message in the game.

Advanced:

How could you use the operator blocks below to make the bananas move more randomly. How does this work. Test it, and explain the math in a screenshare video.

Catching Snowflakes:

Project Page: https://scratch.mit.edu/projects/118300051

1. Does the score indicate how many snowflakes are captured?

2. How many points maximum can be gained from one snowflake?

3. What is the minimum amount of points that can be gained from one snowflake?

4. Play the game and have a partner tally the points gained from each snowflake.

5. Play the game 6 times and tally the points in each game. Graph the results.

6. How are these two games similar? How are they different? Which one would be harder to modify?

7 Remix one of the games: “Catch Me If You Can/Catching Snowflakes”. Explain how you changed it, and why it made the game better.

Advanced:

1. In the script below, why is the x set to “pick random -220 to 210”? If you change these values does it make the game harder or easier? With the “wait” block, there is a “pick random 0.1 to 1.5” block. What does it do? How would you change it to make the game easier, and harder?

2. How could you change the game so that each snowflake gives the same score?