Here are resources your students can utilize for extra practice.
Brazil Multicultural PBL:
https://www.youtube.com/watch?v=Z_MJZtR3n0I
https://kids.nationalgeographic.com/explore/countries/brazil/#brazil-soccer.jpg
https://www.kids-world-travel-guide.com/brazil-facts.html
https://www.natgeokids.com/za/discover/geography/countries/country-fact-file-brazil/
http://www.sciencekids.co.nz/sciencefacts/countries/brazil.html
http://easyscienceforkids.com/all-about-brazil/
https://www.coolkidfacts.com/brazil-facts-for-kids/
http://www.oddizzi.com/teachers/explore-the-world/country-close-up/brazil/
https://www.activityvillage.co.uk/brazil
http://www.ducksters.com/geography/country/brazil.php
State Report:
http://www.enchantedlearning.com/usa/states
https://statesymbolsusa.org/
http://www.netstate.com/states/tables/state_beverages.htm
http://awesomeamerica.com
Scholastic Times:
https://wethepeople.scholastic.com/grade-4-6.html
Native American Tribes:
http://nativeamericans.mrdonn.org/tribes.html
http://www.historyforkids.net/native-americans.html
http://www.native-languages.org/kids.htm
http://www.ducksters.com/history/native_american_tribes_regions.php
https://www.warpaths2peacepipes.com/native-american-indians/
https://www.kidinfo.com/american_history/native_americans.html
States and Capitals:
https://quizlet.com/434367/northeast-states-capitals-clj-flash-cards/
https://www.quia.com/jg/893628list.html
https://www.studystack.com/studytable-12565
http://www.yourchildlearns.com/mappuzzle/us-states-capitals-regions.html
https://uwsslec.libguides.com/c.php?g=218014&p=1439926
http://ixl.com
http://www.e-learningforkids.org/
http://Mobymax.com
http://pbskids.org
http://starfall.com
http://makemegenius.com
http://www.timeforkids.com/
http://kids.nationalgeographic.com/
http://thekidzpage.com/
http://www.funbrain.com/
http://www.bbc.co.uk/history/forkids/index.shtml
http://kids.discovery.com/
http://kidsknowit.com/
http://www.learninggamesforkids.com/
http://www.almanac4kids.com/
Presidential Pets Resources
http://www.usa4kids.com/presidents/Presidents.html
http://www.ducksters.com/biography/uspresidents/
http://kids.nationalgeographic.com/explore/history/presidential-fun-facts/nationalgeographic.com/kids
http://www.fun-facts.org.uk/american-presidents/american-presidents.htm
http://www.kidinfo.com/american_history/presidents.html
http://www.socialstudiesforkids.com/subjects/uspresidents.htm
http://www.usconsulate.org.hk/pas/kids/president.htm
http://gardenofpraise.com/leaders.htm
Science Resources List
http://familyinternet.about.com/od/websitesforkids/tp/science_websites.htm