### Lesson 4

 Part 1 - Engage Students(estimated time=10 minutes)Have students fill in the what I know and what I want to learn sections of a K-W-L chart.  For those who chose this option for Lesson 1, ask students to add to the K-W-L from the previous lesson.  Have students pair-share one thing they know and one thing they want to learn and agree as a pair to share one of each with the entire class.  Have students share their responses.  Look for possible misconceptions within student responses, use them as teachable phrases.  Have students revise their K-W-L as some of the aspects of the game are reviewed.Part 2 - Reviewing World 3 (estimated time=20 minutes) SUMMARY OF WORLD 3Harold has reached the microscale and can no longer stand on water, but he is small enough to be able to jump on floating dust particles. World 3 contains nine levels set in a microscale cloud world. The force of gravity becomes a more dominant force because of Harold’s increased size and weight. The player, however, must now contend with electrically charged particles causing Geckoman to stick (if the charges are opposing) or repel (if the charges are opposite) to various objects and enemies. In this final world, the objective is to collect the missing pieces of the shrinking machine” along with notebook pages that explain how to reassemble it as a “growing machine”.Below are the questions that were asked during the discussion from Lesson 3 followed by responses from Nikki's notebook pages as well as some game playing tips. Where is Harold moving in the game? Harold is in the microscale cloud world. How is electrical charge used in this world? Electrical charge can be used to jump higher.  Harold is repelled by like-charged surfaces, so he can use them to jump. What creatures does he find in this environment?  How can he temporarily immobilize them? Dust mites. He can use vapor puffs to turn them over on their backs.  Also, he can fire his vapor puffs at cloud ninjas! Are there different sized Nanoids?  How does size make a difference in this world? Yes, but all of the characters are affected by gravity.  Some of the Nanoids use balloons and helicopters to float around.  Be careful, you can be caught and carried away!!! Does the surface that the game is played on change in world three?  How is it different? No, not really, however, since the game is in the cloud world, Harold must jump vertically to collect Nikki's notebook pages and the parts for the machine. Does Harold's and the Nanoids' ability to walk on these surfaces change? How? Electrical charge plays an important role in this world.  Harold is repelled by like-charged surfaces and attracted to oppositely-charged surfaces as him. What can Harold use to jump differently in this world? He can use an electrically charged springboard.  If he has a negative charge, he can get a boost by jumping on a negatively charged surfaces.Part 3 - Teacher Chosen Supplementary Activity(estimated time=20 minutes) Visit the Supplemental Curriculum Activities to select an activity you feel would assist students to further their understanding of nanotechnology.  There are multimedia activities, hands-on activities, and laboratory activities that demonstrate the characteristics of nanoparticles on this page. Some will require pre-planning in the form of photocopying or purchasing kits.  Make sure you select an activity that is within your budget and time constraints.  Part 4- Post-Participation Survey(estimated time=15 minutes) Direct students to the Student Post-Participation Survey.  They may notice that they have answered questions on the Student Pre-participation survey that are similar to this, however, you can explain that they need to select the answer which best fits given what they have learned through participation in Geckoman.  Once all students have completed the Post-Participation Survey, conclude the lesson.HOMEWORK: Have students reflect on what they have learned from Geckoman.